Music system for contactless control of an audio apparatus

Abstract

Music system (100) for contactless control of an audio apparatus (2); said music system (100) comprising a musical instrument (1) suitable for receiving sound waves from a user (M) using the musical instrument (1) and converting them into an audio signal (s), a command unit (D) having a proximity sensor (4) that detects the movements of the user (M) and generates a control signal (c), an audio apparatus (2) that receives said audio signal (s) and said command signal (c) and processes the audio signal (s) according to the control signal (c) received to provide an output signal (u1, u2) to be sent to a peripheral unit (20); the peculiarity of the music system (100) is that the proximity sensor (4) is disposed near a microphone (11) in such way that the proximity sensor (4) detects the movements of the user's head.

Description

[0001] MUSIC SYSTEM FOR CONTACTLESS CONTROL OF AN AUDIO APPARATUS

[0002] DESCRIPTION

[0003] The present application for industrial invention relates to a music system for contactless control of an audio apparatus without using hands or feet, without the need to wear accessories attached to one's body, and without moving away significantly from a microphone.

[0004] As it is currently known, musical instruments equipped with an acoustic-electric transducer capable of converting a sound into an audio signal are used in music.

[0005] The term “musical instrument” indistinctly refers to any musical instrument equipped with a transducer that converts pressure waves into an audio signal, such as a microphone for converting the voice into an audio signal, or any electric musical instrument or even an acoustic musical instrument equipped with a transducer.

[0006] The audio signal generated by the transducer is sent to a special audio apparatus, such as an amplifier, which processes the signal by means of a processing unit to amplify or modify or distort it and then send it to a loudspeaker which emits the sound in amplified, modified or distorted form in order to achieve special sound effects.

[0007] In order to control and decide the sound effect to be obtained at the output from the loudspeaker, control devices, such as manual buttons, footswitch pedals or the like, are associated with the audio apparatus to let the performer (i.e., the user) select the mode in which the processing unit of the audio apparatus is to operate on the signal received from the musical instrument in order to decide the type of effect to be obtained at the output from the loudspeaker.

[0008] In practice, the control devices that are currently known on the market let the performer change effects or activate / deactivate functions by physically acting on buttons or footswitch pedals, using the hands or feet during the performance.

[0009] According to the button or pedal pressed, such control devices send a corresponding control signal to the amplifier (or multi-effect device), which processes the signal received from the musical instrument by means of the processing unit in such a way to output a given sound effect from the speaker. Such a control mode requires the performer to dedicate time during the performance to find and activate the pedal / button with the help of his or her feet / hands.

[0010] Such a practice can distract the performer and impair the artistic performance.

[0011] Moreover, if the performer’s feet and hands are engaged in another activity (e.g., in playing a musical instrument) or if the performer is incapacitated due to impediment / disability, the control of the sound effects would be impossible to perform in such a mode.

[0012] A musical instrument called Theremin is known, which uses antennas to detect the position of the hands and vary its sound (volume and frequency) typical of an electronic oscillator. In such a case, the movement of the hands directly controls the change in the sound. Theremin is an electronic musical instrument and is not used as a control device suitable for interfacing with audio equipment, to modify a performer's voice or the sound emitted by a musical instrument, such as a guitar, piano and the like.

[0013] US2022208160A1 discloses a contactless control system for an audio system. The contactless control system comprises a box with left and right proximity sensors that can be operated independently by the user's hands to generate special effects on a sound generated by a musical instrument. In particular, US2022208160A1 discloses that the box can be placed inside a seat formed in a guitar or it can be placed on any supporting surface. Therefore, the user will have to use his or her hands in order to control the system, and this may be difficult to perform and may negatively affect the user's performance.

[0014] US2015332660A1 discloses a guitar with a control system having a control surface arranged above the guitar. When a user performs a gesture on the control surface with his or her hand, the sound emitted by the guitar is altered with special effects. Also in such a case, in order to control the control system, the user will have to use his or her hands, and this may be complex to perform and may negatively affect the user’s performance.

[0015] The purpose of the present invention is to overcome the drawbacks of the prior art by devising a new music system for controlling an audio apparatus that allows commands to be given to the audio apparatus without contact and without using the performer's hands and feet.

[0016] Another purpose is to devise a new music system for controlling an audio apparatus in contactless mode that allows the user to give commands without the need to wear accessories attached to his or her body and without moving away significantly from a microphone.

[0017] A further purpose of the present invention is to devise a music system for controlling a sound apparatus in contactless mode in which the gestures to be performed are simple and intuitive, so that it is extremely natural for the performer to manage the sound effects coming out of a loudspeaker.

[0018] Another purpose is to provide a music system for controlling an audio apparatus in contactless mode that is reliable and efficient.

[0019] These purposes are achieved in accordance with the invention with the features listed in the attached independent claim 1 .

[0020] Advantageous embodiments appear from the dependent claims.

[0021] The music system for controlling and audio apparatus in contactless mode according to the invention is defined by claim 1 .

[0022] For the sake of explanatory clarity, the description of the contactless control system of an audio apparatus according to the invention continues with reference to the attached drawings, which only have an illustrative and non-limiting value, wherein:

[0023] Fig. 1 is a block diagram of the music system for contactless control of an audio apparatus according to the invention;

[0024] Figs. 1 A, 1 B and 1 C are three block diagrams of the music system according to the invention that illustrate the way in which the system according to the invention is used to control the audio apparatus in momentary mode;

[0025] Figs. 1 D, 1 E, 1 F are three block diagrams of the music system according to the invention that illustrate the way in which the system according to the invention is used to control the audio apparatus in latch mode;

[0026] Figs. 2 and 3 are two circuit diagrams illustrating two possible embodiments of the music system for contactless control of an audio apparatus according to the invention;

[0027] Fig. 4 is an axonometric view of a portion of a supporting rod for a microphone to which a support body supporting a proximity sensor of the music system according to the invention is attached by means of an attachment kit;

[0028] Figs. 4A and 4B show two different embodiments of an attachment kit that are different from the one shown in Fig. 4; Fig. 5 is an axonometric view of a plate of an attachment kit suitable for being used to connect the support body to a supporting rod of a microphone;

[0029] Fig. 6 is an axonometric view of the plate in Fig. 5 seen from a different angle; and Fig. 7 is a diagrammatic cross-sectional view of a portion of the assembly shown in Fig. 4, illustrating the way in which the supporting rod and a fastening system of the attachment are both attached to the plate of the attachment kit;

[0030] Figs. 8 and 9 are two block diagrams of two music systems according to the invention alternative to the one shown in Fig. 1 .

[0031] With reference to the attached figures, a music system according to the invention is described, it being comprehensively indicated with reference numeral “100”.

[0032] With particular reference to Fig. 1 , the music system (100) comprises:

[0033] - a musical instrument (1 ) capable of generating an audio signal (s) indicative of a sound,

[0034] - a command unit (D) that receives a command from the user (M) and generates and sends a control signal (c), and

[0035] - an audio apparatus (2) that is operatively connected to said musical instrument (1 ) and to said command unit (D) to receive the audio signal (s) and the control signal (c) and processes the audio signal (s) according to the control signal (c) generated by the command unit (D) to provide an output of a related output signal (u1 , u2, u); and

[0036] - a peripheral unit (20) operatively connected to the audio apparatus (2) and configured to receive the output signal (u1 , u2, u) emitted by the audio apparatus (2).

[0037] The musical instrument (1 ) comprises a transducer (10) of acoustic-electric type configured to receive and convert sound waves into an audio signal (s).

[0038] In this specific embodiment of the invention, the musical instrument (1 ) consists of a microphone (1 1 ). In such a case the sound waves are the sound waves emitted directly by a user (M) through his or her phonation organs. The system (100) comprises a support for said microphone (1 1 ). Specifically, the support of said microphone is a supporting rod (H).

[0039] However, the musical instrument (1 ) may comprise any other musical instrument, such as an electronic musical instrument (electric guitar, pianola, etc.) that is equipped with a transducer to generate an electrical signal or an acoustic musical instrument (acoustic guitar, piano, etc.) equipped with the transducer (10). In the case of an acoustic instrument, the sound waves transduced by the transducer are sound waves generated by vibrating elements exploited by the acoustic musical instrument (1 ) to generate sound such as air for aerophone instruments, strings for chordophone instruments, and membranes for membranophone instruments.

[0040] The transducer (10) can be a piezoelectric transducer, a magnetic transducer, etc.

[0041] The command unit (D) is configured to receive commands from the user (M) and generate a control signal (c) to control the audio apparatus (2) according to the command given by the user (M).

[0042] The command unit (D) comprises a proximity sensor (4) that has a detection area (Q) and a minimum detection distance (d).

[0043] The proximity sensor (4) is configured to detect a presence of an element placed in the detection area (Q) at a shorter distance than the minimum detection distance (d) so that the user (M) can give commands by making movements with his or her body that are detected by the proximity sensor (4).

[0044] By way of example, the proximity sensor (4) may be an infrared sensor, an ultrasonic sensor, a magnetic sensor, an inductive sensor, a TOF sensor, and any other sensor capable of detecting elements placed in a given detection area (Q) at a distance lower than the minimum detection distance (d).

[0045] The command unit (D) also comprises a distance regulator (41 ) configured so that the user (M) can adjust the minimum detection distance (d) of the proximity sensor (4). In the preferred embodiment of the invention, the distance regulator (41 ) is integrated into the proximity sensor (4). However, the distance regulator (41 ) may be separated from the proximity sensor (4) and operatively connected to the proximity sensor (4) or in any case to the command unit (D) by means of a wired or wireless connection.

[0046] The distance regulator (41 ) can be operated manually with a knob that is used by the user (M) manually, or electronically by means of an electronic device, such as a remote control or a smart device.

[0047] Again with reference to Fig. 1 , the command unit (D) also comprises a signal generation and transmission device (5) configured to generate and transmit the control signal (c) to the audio apparatus (2) when the proximity sensor (4) detects a presence in the detection area (Q) or when the proximity sensor (4) changes its state between a detection state and a non-detection state. The signal generation and transmission device (5), based on the gesture or movement made by the user and sensed by the proximity sensor (4) generates the control signal (c).

[0048] The signal generation and transmission device (5) is operatively connected to the proximity sensor (4) by means of connection means (X4, X5) that may comprise wireless antennas or wiring.

[0049] Going now to Figs. 2 and 3, the control signal (c) may be of different types (d , c2, q1 , q2).

[0050] In this regard, the signal generation and transmission device (5) is configured to send different types of control signals (d , c2, q1 , q2) to the audio apparatus (2).

[0051] Each control signal (d , c2, q1 , q2) defines the effect to be applied on the audio signal(s), such as sustain effect, echo effect, delay effect, reverb effect, autotune, harmonizer, and other effects or functions of a musical apparatus that are known to a technician in the field, such as the turning on / off of one of these effects.

[0052] The signal generation and transmission device (5) comprises first selection means (52) that can be operated by the user to select the type of control signal (d , c2, q1 , q2) to be sent to the audio apparatus (2).

[0053] The signal generation and transmission device (5) is also configured to send the control signal (d , c2, q1 , q2) in two different modes (ml , m2).

[0054] In this regard, the signal generation and transmission device (5) comprises second selection means (53) that can be operated by the user to select the signal transmission mode between the two possible modes (ml , m2). By way of example, said second selection means (53) comprise a selector (530) with a user-pressable switch.

[0055] The two possible transmission modes (to be chosen according to the audio apparatus (2) being controlled) are:

[0056] - latch mode (ml) in which the control signal (d , c2) is sent by the signal generation and transmission device (5) with a pulse in on-off mode whenever the proximity sensor (4) changes its state (detects a presence or not);

[0057] - momentary mode (m2) in which the control signal (q1 , q2) is sent by the signal generation and transmission device (5) as a continuous signal until the proximity sensor (4) detects a presence.

[0058] If the user selects the latch mode (ml ), when the proximity sensor (4) detects a presence in the detection area (Q) and is therefore in a detection state, the signal generation and transmission device (5) sends a pulse control signal (d , c2) of 100 ms, for example, which initiates a given sound effect. In order to interrupt such an effect, the proximity sensor (4) must change its state again by not detecting any presence in the detection area (Q) so that the signal generation and transmission device (5) sends a new pulse control signal (d , c2).

[0059] If the user selects the momentary mode (m2), when the proximity sensor (4) detects a presence, a continuous control signal (q1 , q2) is sent, which initiates a given sound effect. Such a sound effect lasts as long as the proximity sensor (4) detects the presence in the detection area (Q). When the proximity sensor (4) does not detect any presence, the continuous control signal (q1 , q2) is no longer transmitted and the specific sound effect is interrupted.

[0060] It should be noted that in the momentary mode (m2), the system may also operate in the opposite way, that is to say, ceasing the effect when the proximity sensor (4) detects a presence, and beginning the effect when the proximity sensor (4) does not detect any presence.

[0061] In the embodiment of the invention shown in Figs. 2 and 3, the signal generation and transmission device (5) comprises a control unit (51 ) that is operatively connected to the proximity sensor (4) and is suitable for generating a state signal (v1 , v2) when the proximity sensor (4) detects a presence in the detection area (Q) or when the proximity sensor (4) changes its state (it detects a presence or not).

[0062] The distance regulator (41 ) may be connected directly to the proximity sensor (4) or indirectly by means of the control unit (51 ). Moreover, the distance regulator (41 ) may operate at both hardware and software level.

[0063] The second selection means (53) are connected to the control unit (51 ) to select the mode in which the state signal (v1 , v2) is output from the control unit (51 ). More precisely, if the latch mode (ml) is selected, then the control unit (51 ) generates state signals (v1 ) of pulse type whenever the proximity sensor (4) changes its state (it detects a presence or not).

[0064] On the contrary, if the momentary mode (m2) is selected, then the control unit (51 ) generates detection signals (v2) of continuous type that are sent as long as the proximity sensor (4) detects a presence. The first selection means (52) are provided downstream of the control unit (51 ), which consist of a selector (520) having:

[0065] - one input channel (N1 ) for the entrance of the state signal (v1 , v2),

[0066] - two output channels (J1 , J2) for the exit of the state signal (v1 , v2) and

[0067] - a control means (a switch in such a case) to select the output channel (J1 , J2) on which the state signal (v1 , v2) is to be routed.

[0068] Each output channel (J1 , J2) corresponds to a corresponding effect / f unction by which the sound apparatus (2) modifies the audio signal (s). The signal generation and transmission device (5) additionally comprises a transmitter (54).

[0069] The transmitter (54), which is either wired or wireless, is configured to emit a given control signal (d , c2, q1 , q2) according to:

[0070] - the channel (J1 , J2) from which the state signal (v1 , v2) is received;

[0071] - the type of state signal (v1 , v2) received, i.e. whether the state signal (v1 ) is of pulse type or whether the state signal (v2) is of continuous type.

[0072] For illustrative purposes, it should be considered that the first channel (J1 ) allows to select a reverb effect, whereas the second channel (J2) allows to select an echo effect.

[0073] So, in the embodiment shown in the attached figures, the signal generation and transmission device (5) can send four different control signals (d , c2, q1 , q2) via the transmitter (54): a first pulse control signal (d ) when the second selection means (53) enable the latch mode (ml ) and the first selection means (52) enable the first channel (J1 ) corresponding to the first reverb effect; a second pulse control signal (c2) when the second selection means (53) enable the latch mode (ml ) and the first selection means (52) enable the second channel (J2) corresponding to the second echo effect; a first continuous control signal (q1 ) when the second selection means (53) enable the momentary mode (m2) and the first selection means (52) enable the first channel (J1 ) corresponding to the first reverb effect a second continuous control signal (q2) when the second selection means (53) enable the momentary mode (m2) and the first selection means (52) enable the second channel (J2) corresponding to the second echo effect. It should be noted that the selector (520) of the first selection means (52) may comprise more than two channels connected to the transmitter (54), each one being selectable by means of a corresponding selection button of a push-button panel or similar devices. Depending on the selected channel, the transmitter (54) will send a corresponding type of control signal. So, the greater the number of channels, the greater the number of types of control signals that can be sent by the transmitter (54).

[0074] In an embodiment not shown in the attached figures, the type of control signals may be stored in a memory of the control unit, and in such a case the first selection means (52) may consist, for example, of a device operationally connected to the control unit, such as a smart device configured in such a way to select one of said type of control signals.

[0075] An application will be installed on the smart device that displays the different types of effects on the touch screen of the smart device and allows the user to select the control signal corresponding to the chosen type of effect by means of the touch screen.

[0076] Moreover, it should be noted that the different types of control signals that can be selected may differ not only in the type of effect but also in the type of audio apparatus (2) with which the signal generation and transmission device (5) is interfaced.

[0077] More specifically, it is possible to select a certain type of control signals in such a way that the control signals sent by the signal generation and transmission device (5) are compatible with the audio apparatus (2).

[0078] In fact different types of audio apparatuses (2) from different commercial brands might read only certain types of control signals. In addition, some types of audio apparatuses (2) might be able to operate only in latch mode or only in momentary mode.

[0079] It should be noted that the sending of the control signals (c; q1 , q2, d , c2) sent by the transmitter (54) of the signal generation and transmission device (5) is enabled by means of conventional circuits with relays or switches (not shown in the attached figures). More precisely, the transmission of said control signals (c, q1 , q2, d , c2) is enabled by opening and closing the contacts of said relays or switches.

[0080] Said relays or switches may be set in a standard operating state and in an inverted operating state in which the polarity of the contacts is reversed with respect to the first standard operating state.

[0081] In this regard, the signal generation and transmission device (5) comprises a switch means (550), in this case a user-operable selector or switch, which allows said relays or switches to be set in said standard operating state or in said inverted operating state.

[0082] When the switch means (550) is operated to set the relays or switches in the standard operating state, then the contacts are normally open and the sending of a control signal (c, q1 , q2, d , c2) closes a contact and the interruption in the sending of a control signal (c, q1 , q2, d , c2) reopens the contact.

[0083] When the switch means (550) is operated to set the relays or switches in the inverted operating state, then the contacts are normally closed and the sending of a control signal (c, q1 , q2, d , c2) opens a contact and the interruption in the sending of the control signal (c, q1 , q2, d , c2) closes the contact again.

[0084] So, when the signal generation and transmission device (5) operates in momentary mode:

[0085] - if the relays or switches are set in the standard operating state, then the contacts are normally open and when the proximity sensor (4) detects a presence, at least one contact of the relays or switches is closed and remains closed for as long as the presence is detected and is then reopened as soon as the proximity sensor (4) no longer detects such a presence;

[0086] - if the relays or switches are set in the inverted operating state, then the contacts are normally closed and when the proximity sensor (4) detects a presence, at least one contact is opened and remains open for as long as the presence is detected and then is closed again as soon as the proximity sensor (4) no longer detects such a presence.

[0087] When the signal generation and transmission device (5) operates in latch mode:

[0088] - if the relays or switches are set in the standard operating state, then the contacts are normally open, and when the proximity sensor (4) changes its state, at least one contact is closed for the time of the pulse signal and then is opened again;

[0089] - if the relays or switches are set in the inverted operating state, then the contacts are normally closed and when the proximity sensor (4) changes its change, at least one contact is opened for the time of the pulse signal and is then closed again.

[0090] The provision of the switch means (550) that allows to reverse the polarity of the relays and switches of the signal generation and transmission device (5) is very useful because it allows the signal generation and transmission device (5) to adapt according to the type of audio apparatus (2) with which it is interfaced. Referring to Figs. 1 , 1A, 1 B, 2 and 3, as mentioned above, the audio apparatus (2) is operatively connected to the musical instrument (1 ) and to the command unit (D) to receive the audio signal (s) and the control signal (c).

[0091] The musical instrument (1 ) is operationally connected to the audio apparatus (2) by means of electrical wiring or antennas that enable a wireless connection. In particular, Figs. 2 and 3 show a wired connection ending with a male audio connector (18) mated with a female audio connector (19) of the audio apparatus (2).

[0092] The command unit (D) is likewise operationally connected to the audio apparatus (2) by means of electrical wiring or antennas that enable a wireless connection. In particular, Figs. 2 and 3 show a wired connection ending with a male connector (81 ) mated with a female connector (82) of the audio apparatus (2).

[0093] By way of example, the female connector (82) of the audio apparatus (2) may be a conventional footswitch port whereas said male connector (81 ) may be a plug suitable for mating with the footswitch port.

[0094] The audio apparatus (2) comprises a processing unit (21 ) configured to: receive the audio signal (s); process the audio signal (s) according to the control signal (c) received from the audio apparatus (2); and provide an output signal (u1 , u2, u) obtained by processing the audio signal (s) according to the control signal (c).

[0095] In fact, if the user does not command any sound effect, then the output signal (u1 ) will be a clean signal, i.e. substantially similar to the original audio signal (s). On the other hand, if the user commands a given sound effect, the audio signal (s) will be processed to obtain an output signal (u2, u) considerably modified in such a way as to have the desired effect.

[0096] As mentioned above, the audio apparatus (2) is operatively connected to a peripheral unit (20) suitable for receiving the output signal (u1 , u2, u) from the audio apparatus (2).

[0097] The peripheral unit (20) may consist of an audio peripheral unit comprising a transduction system capable of converting the electrical output signal (u1 , u2, u) into sound waves (n1 , n2). For illustrative purposes, the audio peripheral unit may comprise one or more loudspeakers and / or headphones and / or any other peripheral unit capable of converting the electrical output signal (u1 , u2, u) into sound waves (n1 , n2).

[0098] Alternatively, the peripheral unit (20) may comprise a memory unit suitable for storing the output signal (u1 , u2, u).

[0099] By way of example, the audio apparatus (2) may consist of a conventional amplifier or a set of devices comprising a multi-effect pedalboard and an amplifier or a mixer or a USB / midi system to control the effects / f unctions of a digital audio workstation (DAW) or otherwise in other systems consisting of one or more hardware and software devices connected to a peripheral unit (20) that receives the output signal (u1 , u2) from the audio apparatus (2). Additionally, the audio apparatus (2) may be an integral part of a digital piano comprising said processing unit (21 ) that receives the control signal (c).

[0100] The processing unit (21 ) consists of one or more electronic boards or a chip with appropriately designed circuitry to perform other operations on the audio signal (s) by means of hardware and / or software, such as filtering operations, amplification operations, etc., in addition to the processing of the audio signal (s) according to the control signal (c).

[0101] In the embodiment shown in Figs. 1 -1 F, the processing unit (21 ) of the audio apparatus (2) is configured to receive both the audio signal (2) and the control signal (c). Based on the received control signal (c), it either processes the audio signal (s) to generate the clean output signal (u1 ) similar to the audio signal (s), or processes the audio signal (s) to generate the modified output signal (u2). More precisely and preferably, when the processing unit (21 ) does not receive the control signal (c), then it processes the audio signal (s) to generate the clean output signal (u1 ) whereas when it receives the control signal (c), it processes the audio signal (s) to generate the modified output signal (u2). On the other hand, according to another version of the invention, the processing unit (21 ) may operate in the opposite way, i.e. in such a way to process the audio signal (s) to generate the modified output signal (u2) when it does not receive the control signal (c) and not to process the audio signal (s) to generate the clean output signal (u1 ) when it receives the control signal (c)

[0102] Since the audio signal (s) always enters the processing unit (21 ), and since the processing unit (21 ) may perform other operations on the audio signal (s) in addition to processing the audio signal (s) according to the control signal (c), this implies that both the clean output signal (u1 ) and the modified output signal (u2) with the desired effect can both be subjected to filtering operations, amplifying operations, etc.

[0103] The processing unit (21 ) is configured to process the audio signal (s) differently depending on the type of control signal (d , c2, q1 , q2) being received by the audio apparatus (2).

[0104] More specifically, the processing unit (21 ) is capable of understanding both the effect to be applied to the audio signal (s) and whether the momentary mode (m2) or the latch mode (ml ) has been selected.

[0105] For illustrative purposes, if the control signal received by the processing unit (21 ) is the first pulse control signal (d ), then the processing unit (21 ) understands that it must operate in latch mode and process the audio signal (s) in order to activate / deactivate a given effect / f unction. In the example described above, the processing unit (21 ) processes the audio signal (s) in order to obtain the reverb effect.

[0106] If, on the other hand, the control signal received by the processing unit (21 ) is the first continuous control signal (q1 ) then the processing unit (21 ) understands that it must operate in momentary mode and process the audio signal (s) in order to activate / deactivate a specific effect / function. In the example described above, the processing unit (21 ) processes the audio signal (s) in order to obtain the reverb effect.

[0107] Alternatively, the processing unit (21 ) of the audio apparatus (2) can be configured to operate only in momentary mode or only in latch mode. In such a case, the user must use the second selection means (53) of the signal generation and transmission device (5), to select the transmission mode (ml , m2) that is suitable for the mode in which the processing unit (21 ) of the audio apparatus (2) operates.

[0108] Moreover, the command unit (D) comprises power supply means (9) connected to the signal generation and transmission device (5) and to the proximity sensor (4) in order to power them.

[0109] The power supply means (9) are configured to provide the proximity sensor (4) and the signal generation and transmission device (5) with an appropriate current for their proper operation.

[0110] Said power supply means (9) may comprise a battery or may comprise wires connected to mains sockets and connected to a suitable power transformer. Furthermore, the command unit (D) comprises a switch (6) connected to the proximity sensor (4) and to the signal generation and transmission device (5) and configured to enable or disable said proximity sensor (4) and said signal generation and transmission device (5).

[0111] With the switch (6), the user (M) can activate / deactivate the operation of the proximity sensor (4) and of the signal generation and transmission device (5) when necessary.

[0112] Otherwise said, thanks to the switch (6), the user (M) can enable or disable the entire command unit (D) and thus decide whether or not to use the command unit (D) functionality to manage the effects emitted by the audio peripheral unit (20) of the audio apparatus (2).

[0113] With reference to Figs. 2, 3 and 4, the system (100) also comprises a support body (GO) configured to:

[0114] - support only the proximity sensor (4) or

[0115] - support the proximity sensor (4) and the signal generation and transmission device (5).

[0116] In Fig. 2 and 3, the support body (GO) is shown schematically with a closed dashed line.

[0117] Fig. 2 shows a first embodiment of the support body (GO) wherein the support body (GO) supports both the proximity sensor (4) and the signal generation and transmission device (5).

[0118] Fig. 3 shows a second embodiment of the support body (GO) wherein the support body (GO) supports only the proximity sensor (4). In such a second embodiment the signal generation and transmission device (5) is mounted on another body (G1 ).

[0119] The support body (GO) and the other body (G1 ), if any, are boxed bodies so that they can contain and protect the proximity sensor (4) and the signal generation and transmission device (5).

[0120] As shown in Fig. 4, the switch (6) is mounted on the support body (GO) to switch off or on the entire command unit (D).

[0121] Again with reference to Fig. 4, the support body (GO) is preferably mounted on an articulated arm (30). With reference to Figs. 4, 5, 6, and 7, moreover, the music system (100) comprises an attachment kit (7) configured to attach the support body (GO) to the microphone (1 1 ) or to the microphone support (1 1 ). Specifically, the attachment kit (7) is configured to attach the support body (GO) to the supporting rod (H) of the microphone.

[0122] A first version of the attachment kit (7) is shown in the attached Figs. 4, 5, 6 and 7.

[0123] The attachment kit (7) comprises a plate (71 ) that is connected to the supporting rod (H) on one side and supports the support body (GO) on the other side, specifically supporting the articulated arm (30), which in turn supports the support body (GO).

[0124] The supporting rod (H) comprises a lower tubular portion (H1 ) and an upper tang (H2) comprising an attachment clip (H3) for a microphone (1 1 ).

[0125] The lower tubular portion (H1 ) and the upper tang (H2) are connected to each other by means of threaded connection means (H4, H5). The threaded connection means (H4, H5) comprise a threaded stem (H4) and a threaded hole (H5) helically coupled with each other and formed on the lower tubular portion (H1 ) and on the upper tang (H2), respectively.

[0126] The plate (71 ) has a hole (71 1 ) having a diameter (w) that is larger than the threaded stem (H4) in such a way to be crossed by the threaded stem (H4) and is smaller than the diameter of the lower tubular portion (H1 ) and the upper tang (H2) so that by screwing the threaded stem (H4) into the threaded hole (H5) the lower tubular portion (H1 ) and the upper tang (H2) fasten the plate (71 ).

[0127] The attachment kit (7) also comprises a fastening system (72) that fixes and fastens the support body (GO) to the plate (71 ).

[0128] The fastening system (72) comprises a first body (721 ) whereon the support body (GO) is mounted (specifically the articulated arm (30) that supports the support body (GO)) and a second body (722).

[0129] The first body (721 ) and the second body (722) are connected to each other by means of threaded connection means (725, 726). The threaded connection means (725, 726) comprise a threaded hole (726) and a threaded stem (725) helically coupled with each other and formed on the first body (721 ) and on the second body (722).

[0130] The plate (71 ) has a slot (712) with a width (x) that is greater than the threaded stem (725) in such a way to be crossed by the threaded stem (725) and is lower than the volume of the first body (721 ) and the second body (722) so that by screwing the threaded stem (725) into the threaded hole (726), the plate (71 ) is fastened by the first body (721 ) and the second body (722).

[0131] Evidently, by slightly unscrewing the threaded stem (725) from the threaded hole (726), the entire fastening system (72) can slide along the slot (712) in such a way that the distance of the support body (GO) from the microphone (1 1 ) can be adjusted. It is also evident that, once the position of the support body (GO) with respect to the slot (712) has been established, the fastening system (72) is stopped as a result of screwing the threaded stem (725) into the threaded hole (726).

[0132] The plate (71 ) has a first face (71 a) suitable for facing the upper tang (H2) and the first body (721 ), and a second face (71 b) opposite said first face (71 a).

[0133] Advantageously, protrusions (R) are formed on the first face (71 a) and around the hole (71 1 ) and the slot (712) to increase the grip of the upper tang (H2) on the plate (71 ) and the grip of the first body (721 ) of the fastening system (72) on the plate (71 ).

[0134] In order to facilitate the screwing and unscrewing of the two bodies (721 , 722) of the fastening system (72), the first body (721 ) and the second body (722) are shaped like a knob.

[0135] Specifically, the first body (721 ) has the shape of a parallelepiped knob comprising longitudinal grooves, whereas the second body (722) has a central body with at least one radial protrusion that projects radially from the central body.

[0136] With reference to Figs. 4A and 4B, a second and a third embodiment of the attachment kit (7) are shown.

[0137] Specifically, Fig. 4A shows is a second embodiment of the attachment kit (7). In such a second embodiment, the attachment kit (7) comprises an articulated arm (75) having one end (751 ) provided with a clamp attached to the supporting rod (H) of the microphone (1 1 ), and a second end (752) supporting the support body (GO).

[0138] A third embodiment of the attachment kit (7) is shown in Fig. 4B. In such a third embodiment, the attachment kit (7) consists of a T-shaped element (76) that is mounted on the lower tubular portion (H1 ) of the supporting rod (H). Specifically, such a T-shaped element (76) comprises:

[0139] - an articulated central stem (761 ) attached to the lower tubular portion (H1 ) of the supporting rod (H); and - a plate (762) attached to the central stem (761 ) and having two lateral portions that protrude laterally from the central stem (761 ) and whereon a first support that supports the body (GO) and a second support with elastic attachment clips that supports the microphone (1 1 ) are mounted.

[0140] Hereinafter, with reference to Figs. 1 A, 1 B, 1 C, 1 D, 1 E, and 1 F, two ways of using the invention in question are described only for illustrative purposes.

[0141] More specifically, Figs. 1 A, 1 B and 1 C show the use of the invention in momentary mode, whereas Figs. 1 D, 1 E and 1 F show the use of the invention in latch mode.

[0142] In both modes, however, the system (100) is applied to modify the voice of a user (M) (more precisely a singer) using a microphone (1 1 ) as musical instrument (1 ).

[0143] Firstly, the support body (GO) is connected to the supporting rod (H) of the microphone (1 1 ) by means of the attachment kit (7) in such a way that the proximity sensor (4) is disposed near the microphone (1 1 ).

[0144] Then, the user or singer sets the minimum detection distance (d) of the proximity sensor (4) in such a way that the gestures or movements performed in front of the proximity sensor (4) at a shorter distance than the minimum detection distance (d) can be detected by the proximity sensor (4). In particular, the proximity sensor (4) supported by the support body (GO) is positioned next to the microphone (1 1 ) in such a way that small movements of the singer's head can be detected by the proximity sensor (4).

[0145] Then, the user selects the transmission mode of the control signal and the type of effect to be achieved by means of the second selection means (53) and the first selection means (52).

[0146] With reference to Figs. 1A, 1 B and 1 C, it is assumed that the user has selected the momentary mode (m2) as transmission mode and the reverb effect as effect.

[0147] With reference to Fig. 1 A the user firstly begins the performance and when the singer's head is not positioned in front of the proximity sensor (4):

[0148] - the proximity sensor (4) does not detect any element in front of it,

[0149] - the signal generation and transmission device (5) does not send any control signal to the audio apparatus (2),

[0150] - the processing unit (21 ) does not receive the command signal and consequently does not apply any special processing to the audio signal, and therefore the output signal (u1 ) will be practically similar to the received audio signal (s), and thus the sound waves (n1 ) generated by the audio peripheral unit (20) will be perceived as “sound without effect”.

[0151] Conversely, with reference to Fig. 1 B, when the singer’s head is positioned in front of the proximity sensor (4):

[0152] - the proximity sensor (4) detects an element, that is to say the singer's head in front of it,

[0153] - the signal generation and transmission device (5) sends the continuous control signal (q1 ) to the audio apparatus (2) as long as the proximity sensor (4) detects the presence of the singer's head in the detection area (Q);

[0154] - the processing unit (21 ) receives the continuous control signal (q1 ) and processes the audio signal (s) in order to obtain the output signal (u2) with reverb effect, which will be significantly modified with respect to the audio signal (s), and thus the sound waves (n2) generated by the audio peripheral unit (20) will be perceived as “sound with effect”.

[0155] With reference to Fig. 1 C, when the singer’s head is repositioned out of the detection area (Q), then the proximity sensor (4) no longer detects any presence in front of it and the signal generation and transmission device (5) no longer sends any command signal to the audio apparatus (2), and thus the sound waves (n1 ) generated by the audio peripheral unit (20) of the audio apparatus (2) will be perceived as “sound without effect”.

[0156] With reference to Figs. 1 D, 1 E and 1 F, however, it is assumed that the user has selected the latch mode (ml ) as transmission mode and the reverb effect as effect.

[0157] With reference to Fig. 1 D, firstly the user begins the performance and when the singer's head is not positioned in front of the proximity sensor (4):

[0158] - the proximity sensor (4) does not detect any element in front of it,

[0159] - the signal generation and transmission device (5) does not send any control signal to the audio apparatus (2),

[0160] - the processing unit (21 ) does not receive the control signal (c) and does not apply any special processing to the audio signal, and therefore the output signal (u1 ) will be practically similar to the received audio signal (s), and thus the sound waves (n1 ) generated by the audio peripheral unit (20) will be perceived as “sound without effect”.

[0161] With reference to Fig. 1 E, as soon as the user’s head is moved into the detection area (Q), as per direction (R1 ): - the proximity sensor (4) detects the presence of the head of the user (M) and thus varies its state from a non-detection state to a detection state;

[0162] - the signal generation and transmission device (5) sends the pulse command signal (d ) to the audio apparatus (2);

[0163] - the processing unit (21 ) receives the pulse command signal (d ) and immediately begins to process the audio signal (s) in order to obtain the output signal (u2) with reverb effect, which will be significantly modified with respect to the audio signal (s), and thus the sound waves (n2) generated by the audio peripheral unit (20) will be perceived as “sound with effect”.

[0164] With reference to Fig. 1 F, as soon as the user’s head is moved out of the detection area (Q) again, as per direction (R2), the proximity sensor (4) changes its state from the detection state to the non-detection state, and the signal generation and transmission device (5) immediately sends a new pulse command signal (d ) to the audio apparatus (2). The processing unit (21 ) of the audio apparatus (2) receives the new impulse command signal (d ) and perceives that it must cease operating on the audio signal (s), and therefore the output signal (u1 ) will be practically similar to the received audio signal (s), and thus the sound waves (n1 ) generated by the audio peripheral unit (20) will be perceived as “sound without effect”.

[0165] Figs. 8 and 9 show two alternative versions of the system (100) according to the invention, wherein the audio apparatus (2) comprises a bypass unit (B) similar to an A / B system, channel selector, or send / return system, operatively connected to the processing unit (21 ) of the audio apparatus (2), to the command unit (D), to the transducer (10), and to the peripheral unit (20) and configured to:

[0166] - receive said audio signal (s) and said control signal (c) from the transducer (10) and from the command unit (D), respectively;

[0167] - route the audio signal (s) directly to the peripheral unit (20) or to the processing unit (21 ) of the audio apparatus (2) depending on whether or not it receives said control signal (c) from the control group (D), so that the processing unit (21 ) can process the audio signal (s).

[0168] More precisely, when the bypass unit (B) does not receive the control signal (c), the bypass unit (B) routes the audio signal (s) directly to the peripheral unit (20), whereas when the bypass unit (B) receives the control signal (c), the bypass unit (B) routes the audio signal (s) to the processing unit (21 ) which processes the audio signal (s) according to its pre-configuration, obtaining the output signal (u) or vice versa, according to its configuration.

[0169] In the embodiment of the invention shown in Fig. 8, the output signal (u) generated by the processing unit (21 ) is sent back to the bypass unit (B), which in turn routes it to the peripheral unit (20).

[0170] In contrast, in the embodiment of the invention shown in Fig. 9, the output signal (u) generated by the processing unit (21 ) is sent directly to the peripheral unit (20) without passing through the bypass unit (B).

[0171] The provision of the bypass unit (B) makes the system suitable for being used with most types of processing units (21 ), for example, even those that are not provided with footswitch ports.

[0172] As a result of the above description, it now becomes apparent that the present invention is quite advantageous, for example, in all those cases in which the singer’s hands and feet are occupied and the singer want to use a particular effect to modify his or her voice during the performance. Thanks to the present invention, the user or performer who wants to activate a particular effect will simply have to make a small movement with his or her head in front of the proximity sensor (4) so that the latter detects the movement.

[0173] Additionally, since the proximity sensor (4) is disposed near the microphone (1 1 ), in order to activate / deactivate any effects, the user does not need to significantly move away from the microphone (11 ) and therefore the intensity of the voice sound waves emitted by the user remains essentially the same without adversely affecting the singing performance

[0174] Moreover, it is worth pointing out that, thanks to the first and second selection means (52, 53) that allow to select both the transmission mode (ml , m2) and the signal type, the signal generation and transmission device (5) of the control device (D) can be interfaced with different types of audio apparatuses (2).

[0175] Finally, it is pointed out that although in the foregoing description the musical instrument whose audio signal (s) is to be altered consists of the microphone (1 1 ) next to which the body (GO) supporting the proximity sensor (4) is disposed, according to an alternative embodiment of the invention, the musical instrument that generates the audio signal (s) to be altered is a different instrument from the microphone, such as a guitar, a bass guitar, or a keyboard used by the singer while singing on the microphone (1 1 ).

[0176] Numerous variations and modifications of detail may be made to the present embodiment of the invention, within the reach of an expert of the field, but still within the scope of the invention as expressed by the appended claims.

Claims

CLAIMS1 . Music system (100) for contactless control of an audio apparatus (2); said music system (100) comprising:- at least one musical instrument (1 ) comprising a transducer (10) configured to receive sound waves from a user (M) using the musical instrument (1 ) to convert them into an audio signal (s);- a command unit (D) configured to receive commands from the user (M) and generate a control signal (c) based on the command given by the user (M); wherein the command unit (D) comprises a proximity sensor (4) having a detection area (Q) and a minimum detection distance (d); said proximity sensor (4) being configured to detect the presence of an element disposed in the detection area (Q) at a lower distance than the minimum detection distance (d), in such a way that the user (M) can give commands to the command unit (D) by making body movements that are detected by the proximity sensor (4);- a support body (GO) configured to support the proximity sensor (4) of the command unit (D);- an audio apparatus (2) operatively connected to said musical instrument (1 ) and to said command unit (D) to receive said audio signal (s) and said control signal (c); wherein said audio apparatus (2) comprises at least one processing unit (21 ) configured to receive said audio signal (s) as input, process the audio signal (s) according to the control signal (c) received from the audio apparatus (2) and provide an output signal (u1 , u2; u) obtained by processing the audio signal (s);- a peripheral unit (20) operatively connected to the audio apparatus (2) and configured to receive the output signal (u1 , u2; u); characterized in that said music system (100) comprises a microphone (1 1 ), a support supporting said microphone (1 1 ) and an attachment kit (7) configured to attach the support body (GO) to the microphone (1 1 ) or to the support of the microphone (11 ) so that the proximity sensor (4) is disposed near the microphone in such a way that the proximity sensor (4) detects the movements of the user’s head.

2. The music system (100) according to claim 1 , wherein said support of the microphone (11 ) consists in a supporting rod (H); wherein said attachment kit (7) is configured to be fastened to said supporting rod (H).

3. The music system (100) according to claim 2, wherein said supporting rod (H) comprises:- a lower tubular portion (H 1 ) ;- an upper tang (H2) comprising attachment clips (H3) for the microphone (1 1 ); and- threaded connection means (H4, H5) arranged between the lower tubular portion (H1 ) and the upper tang (H2); wherein said threaded connection means (H4, H5) comprise a threaded stem (H4) and a threaded hole (H5), respectively formed on the lower tubular portion (H1 ) and on the upper tang (H2) ; wherein said attachment kit (7) comprises a plate (71 ) having a hole (71 1 ) with a diameter (w) that is greater than the threaded stem (H4) so as to be crossed by the threaded stem (H4) and is lower than the diameter of the lower tubular portion (H1 ) and of the upper tang (H2) so that the lower tubular portion (H1 ) and the upper tang (H2) can fasten the plate (71 ) by screwing the threaded stem (H4) into the threaded hole (H5); wherein said attachment kit (7) comprises a fastening system (72) to fix and fasten the support body (GO) to the plate (71 ).

4. The music instrument (100) according to claim 3, wherein said fastening system (72) of the attachment kit (7) comprises:- a first body (721 ) whereon the support body (GO) is mounted;- a second body (722);- threaded connection means (725, 726) arranged between the first body (721 ) and the second body (722); wherein said threaded connection means (725, 726) comprise a threaded stem (725) and a threaded hole (726), respectively formed on the first body (721 ) and on the second body (722); wherein said plate (71 ) comprises a slot (712) having a width (x) that is greater than the threaded stem (725) so as to be crossed by the threaded stem (725) and is lower than the first body (721 ) and the second body (722) so that the first body (721 ) and the second body (722) can fasten the plate (71 ) by screwing the threaded stem (725) into the threaded hole (726).

5. The music system (100) according to any one of the preceding claims, wherein said command unit (D) comprises a switch (6) configured to enable or disable said command unit (D).

6. The music system (100) according to any one of the preceding claims, wherein said command unit (D) comprises a signal generation and transmission device (5) configured to generate and transmit the control signal (c) when the proximity sensor (4) detects the presence in the detection area (Q) or when the proximity sensor (4) changes its state between a detection state and a non-detection state.

7. The music system (100) according to claim 6, wherein said signal generation and transmission device (5) is configured to send different types of control signals (d , c2, q1 , q2); wherein said signal generation and transmission device (5) comprises first selection means (52) to select the type of control signal (d , c2, q1 , q2) to be sent to the audio apparatus (2); wherein said processing unit (21 ) is configured to process the audio signal (2) in a different way according to the type of control signal (d , c2, q1 , q2) received by the audio apparatus (2).

8. The music system (100) according to claim 6 or 7, wherein said signal generation and transmission device (5) is configured to send the control signal (d , c2, q1 , q2) in two different transmission modes (ml , m2); wherein said signal generation and transmission device (5) comprises second selection means (53) to select a transmission mode between the two different transmission modes (ml , m2).

9. The music system (100) according to claim 8, wherein said two transmission modes (ml , m2) comprise:- a latch mode (ml) in which the control signal (d , c2) is sent by the signal generation and transmission device (5) with an impulse in on-off mode every time the proximity sensor (4) changes its state by detecting or not detecting a presence in the detection area (Q);- a momentary mode (m2) in which the control signal (q1 , q2) is sent by the signal generation and transmission device (5) as a continuous signal as long as the proximity sensor (4) detects a presence in the detection area (Q).

10. The music system (100) according to any one of the preceding claims, wherein said support body (GO) is configured to support the proximity sensor (4) and the signal generation and transmission device (5).

11. The music system (100) according to any one of the preceding claims, wherein said audio apparatus (2) comprises a by-pass unit (B) operatively connected to the processing unit (21 ) of the audio apparatus (2), to the command unit (D), to the transducer (10) and to the peripheral unit (20) and configured to: - receive said audio signal (s) and said control signal (c) respectively from the transducer (10) and from the command unit (D);- depending on whether or not it receives said control signal (c) from the command unit (D), route said audio signal (s) directly to the peripheral unit (20) or to the processing unit (21 ) of the audio apparatus (2) so that the processing unit (21 ) can process the audio signal (s) generating said output signal (u).

12. The system according to any one of the preceding claims, wherein said peripheral unit (20) comprises an audio peripheral unit configured to convert the output signal into sound waves (n1 , n2).

13. The system according to any of the preceding claims, wherein said peripheral unit (20) comprises a memory unit suitable for storing the output signal.

14. Use of a music system (100) according to any one of the preceding claims for controlling the audio apparatus (2) by means of movements that allow the proximity sensor (4) to detect the user's head.

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