Sound processing system and device

Abstract

The utility model discloses a sound processing system, comprising a pickup module used for picking up the sound of a user; the playback module is used for converting the electric signal into a sound signal and playing the sound signal; the information processing module is used for receiving and processing the signal of the pickup module and outputting the enhanced voice signal to the playback module; and the power management module is used for supplying power to the sound processing system and comprises a direct current-direct current charging management unit and an overvoltage and overcurrent protection device. By means of the mode, on the premise that normal oxygen uptake of a patient is guaranteed, barrier-free communication between the patient and the outside world is achieved, voice enhancement is achieved by combining noise elimination, echo suppression, howling suppression, gain control and the like, and high-quality voice transmission is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen masks, in particular to a sound processing system and device. Background Art

[0002] Severely ill patients can supply oxygen to various tissues and organs of the body by inhaling oxygen, thereby maintaining the normal functioning of the respiratory system. Some critically ill patients cannot use nasal oxygen inhalation, so they use head-mounted oxygen masks to inhale oxygen. Patients in intensive care units generally need to wear oxygen masks for a long time to maintain the stability of their body functions.

[0003] In medical settings, especially for patients requiring prolonged oxygen therapy, wearing an oxygen mask can hinder communication with medical staff and family members. Existing technologies lack an effective solution that can ensure both oxygen supply and clear voice communication. Utility Model Content

[0004] The purpose of this utility model is to provide a sound processing system and device, which can realize barrier-free communication between the patient and the outside world under the premise of ensuring the normal oxygen inhalation of the patient, and combine noise elimination, echo suppression, howling suppression and gain control to realize voice enhancement and achieve high-quality voice transmission.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a sound processing system, comprising:

[0006] A sound pickup module, used to pick up the user's voice;

[0007] A playback module, used to convert electrical signals into sound signals and play them;

[0008] An information processing module is used to receive and process the signal from the sound pickup module and output the enhanced voice signal to the playback module;

[0009] The power management module is used to power the sound processing system. The power management includes DC-DC, charging management unit and overvoltage and overcurrent protection devices.

[0010] The information processing module is connected to the sound pickup module and the playback module through wires, provides power supply voltage to the sound pickup module, receives the signal picked up by the sound pickup module, performs voice enhancement processing on the signal collected by the sound pickup module, and outputs it to the playback module for playback.

[0011] The sound pickup module includes a microphone or a microphone array and a microphone connection board, and the microphone or the microphone array is connected to the microphone circuit board.

[0012] The information processing module includes a circuit board assembly that integrates a DSP and can run an audio processing algorithm.

[0013] The audio processing algorithm includes a noise cancellation algorithm, an echo cancellation algorithm, a howling suppression algorithm, a gain control algorithm and a speech enhancement algorithm.

[0014] The power management module includes a charging management system and a rechargeable battery. The charging management system monitors and manages the charging state of the rechargeable battery.

[0015] A sound processing device includes any of the sound processing systems described above, and also includes a shell, wherein an acoustic cavity and a speaker cavity are respectively provided at both ends of the shell, a sealing component is provided on the outer side of the shell, a pickup module and a first waterproof component are installed in the acoustic cavity, a playback module, a power management module and a second waterproof component are installed in the speaker cavity, and the pickup module and the playback module are electrically connected.

[0016] The housing consists of a first housing and a second housing, and the first housing and the second housing are movably connected.

[0017] The first shell includes a sound pickup porous panel, a first cylinder and a first partition that are sealed and connected. An acoustic cavity is formed between the sound pickup porous panel, the first cylinder and the second partition. The first waterproof component is installed and fixed to the sound pickup porous panel.

[0018] The second shell includes a sealingly connected connecting cylinder, a second cylinder, a second partition and a speaker porous panel. The two ends of the connecting cylinder are respectively connected and fixed to the first cylinder and the second cylinder. A sound cavity is formed between the second cylinder, the second partition and the speaker porous panel. The second waterproof component is installed and fixed to the speaker porous panel.

[0019] The beneficial effects of the present invention are as follows: a sound processing system and device of the present invention, using an oxygen mask, can effectively enhance the wearer's voice while wearing an oxygen mask. The device is equipped with a single or multiple microphones and speakers, and combines noise cancellation, echo suppression, howling suppression, and gain control to achieve voice enhancement and high-quality voice transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a structural diagram of a sound processing system of the utility model;

[0022] Figure 2 This is a structural diagram of a sound processing device of the present utility model;

[0023] Figure 3 It is a structural schematic diagram of an embodiment of a sound processing device of the present utility model. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the present invention more apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the present invention shown in and described with reference to the accompanying drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0025] It should also be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0026] Furthermore, in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of this utility model. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] True story example 1:

[0028] See also Figure 1 , the embodiments of the present utility model include:

[0029] A sound processing system comprising:

[0030] Sound pickup module 1, used to pick up the user's voice;

[0031] Playback module 2, used to convert the electrical signal into a sound signal and play it;

[0032] Information processing module 3, used to receive and process the signal of the sound pickup module, and output the enhanced voice signal to the playback module;

[0033] Power management module 4 is used to power the sound processing system. Power management includes DC-DC, charging management unit and overvoltage and overcurrent protection device.

[0034] The information processing module 4 is connected to the sound pickup module 1 and the playback module 2 through wires, provides power supply voltage to the sound pickup module, receives the signal picked up by the sound pickup module, performs voice enhancement processing on the signal collected by the sound pickup module, and outputs it to the playback module for playback.

[0035] The sound pickup module 1 includes a microphone 11 or a microphone array and a microphone connecting board 12 . The microphone 11 or the microphone array is connected to the microphone circuit board 12 .

[0036] The playback module 2 includes a thin, lightweight, high-sensitivity, low-distortion speaker 21 with a diameter of 50 mm or less.

[0037] The information processing module 3 includes a circuit board assembly 31 , and the circuit board assembly 31 integrates a DSP or an audio processing algorithm.

[0038] The audio processing algorithm includes a noise cancellation algorithm, an echo cancellation algorithm, a howling suppression algorithm, a gain control algorithm and a speech enhancement algorithm.

[0039] The power management module 4 includes a charging management system 41 and a rechargeable battery 42 . The charging management system 41 monitors and manages the charging status of the rechargeable battery.

[0040] Specific audio algorithm

[0041] 1. Automatic Gain Control

[0042] Used to adjust the audio signal level to ensure consistent output volume. It prevents the volume from being too high or too low, ensuring that speech is clearly audible.

[0043] 2. Echo Cancellation

[0044] Because the physical distance between the speaker and microphone is relatively close, echo may occur. The echo cancellation algorithm improves audio clarity by identifying and reducing echo signals.

[0045] 3. Noise suppression

[0046] Noise suppression is used to reduce background noise. The noise involved in this invention is mainly breathing noise suppression, which can be achieved through the following types of algorithms:

[0047] High-pass filter: Use the high-pass filter to remove the low-frequency breathing sound.

[0048] In order to achieve the best noise suppression effect, the inside of the mask is filled with soft materials such as silicone, foam, etc. to reduce the vibration of the mouth speaking and transfer it to the microphone, which can effectively suppress transient noise.

[0049] 4. Feedback Inhibition

[0050] Feedback suppression is used to prevent speaker audio from being re-amplified by the microphone, resulting in a harsh howling sound. The algorithm usually includes adaptive filtering and frequency shifting technology.

[0051] 5. Equalizer

[0052] An equalizer adjusts the frequency response of an audio signal to compensate for room acoustics or uneven device response. It can be a fixed-frequency equalizer or an adaptive equalizer.

[0053] 6. Dynamic range compression (mainly used in playback channels)

[0054] Dynamic range compression is used to reduce the dynamic range of an audio signal, making louder parts quieter and quieter parts louder, providing a more balanced audio output.

[0055] 7. Voice Activity Detection (VAD)

[0056] VAD is used to detect the presence of speech signals in order to suppress background noise and save processing resources when there is no speech signal.

[0057] True story example 2:

[0058] See also Figure 2 , the embodiments of the present utility model include:

[0059] A sound processing device includes any of the above-mentioned sound processing systems, including a shell 5, wherein an acoustic cavity 51 and a speaker cavity 52 are respectively provided at both ends of the shell 5, a sealing component 6 is provided on the outer side of the shell 5, a pickup module 1 and a first waterproof component 7 are installed in the acoustic cavity 51, and a playback module 2, a power management module 4 and a second waterproof component 8 are installed in the speaker cavity 52, and the pickup module 1 and the playback module 2 are electrically connected. The pickup module of the present application is used to pick up the user's voice, the playback module is used to play out the processed voice signal, the power supply component is used to power the sound processing system, and the power management includes DC-DC, a charging management unit and an overvoltage and overcurrent protection device. In specific implementation, the pickup module starts to pick up the user's voice signal and plays the voice through the playback module to realize the intercom function. Since the first waterproof component and the second waterproof component are respectively provided in the acoustic cavity and the speaker cavity, the waterproof protection of the acoustic glue and the speaker cavity is further improved, ensuring that the device can work normally in a humid environment.

[0060] The housing 5 is composed of a first housing 53 and a second housing 54, and the first housing 53 and the second housing 54 are movably connected. Since the first housing 53 and the second housing 54 are movably connected, the requirements of quick disassembly and replacement are met.

[0061] The first housing 53 includes a sealed, porous sound pickup panel 531, a first cylindrical body, and a first partition. An acoustic cavity is formed between the porous sound pickup panel, the first cylindrical body, and the second partition. The first waterproof component is mounted and fixed to the porous sound pickup panel. The connection between the porous sound pickup panel, the first cylindrical body, and the first partition of the present application is a sealed connection, resulting in a sealed acoustic cavity that prevents the outside world from connecting to the acoustic cavity, thereby shielding it from external noise and interfering speech.

[0062] The second shell 54 includes a sealingly connected connecting cylinder, a second cylinder, a second partition and a speaker porous panel 541. The two ends of the connecting cylinder are respectively connected and fixed to the first cylinder and the second cylinder. A sound cavity is formed between the second cylinder, the second partition and the speaker porous panel. The second waterproof component is installed and fixed to the speaker porous panel. The second cylinder, the second partition and the speaker porous panel of the present application are sealed and connected, so that the sound cavity formed is a closed box design, so that the acoustic radiation direction is outward, reducing the echo path caused by other unnecessary acoustic paths and reducing the risk of howling.

[0063] More specifically, the first waterproof component is an acoustic waterproof mesh; the second waterproof component is an acoustic waterproof mesh or an acoustic mesh.

[0064] The sound pickup module 1 includes a microphone 11 or a plurality of microphone arrays and a microphone circuit board 12 . The microphone circuit board 12 is mounted on the first partition.

[0065] The microphone is preferably a unidirectional electret condenser microphone, but may also be a directional or omnidirectional electret condenser microphone or MEMS microphone. Unidirectional microphones help eliminate speech reverberation caused by reflected waves. The microphone can be cylindrical, with a diameter of approximately 16 mm or less. The microphone can also be rectangular. The microphone can be a single microphone or a microphone array, including but not limited to linear arrays, triangular arrays, circular arrays, or three-dimensional arrays.

[0066] The microphone can be either an air conduction microphone or a bone conduction microphone. Bone conduction microphones need to fit tightly against the structure to pick up the vibrations generated by the wearer's vocal cords, which are then transmitted to the oxygen mask. The microphone or microphone array is located behind the porous sound pickup panel. The porous material helps reduce the transmission of wind noise generated by panting or speaking. A first waterproof component is attached to the inside of the porous sound pickup panel to further reduce wind noise, panting, and other noise that is detrimental to voice communication. The microphone or microphone array should be placed 2mm or more behind the first waterproof component to avoid turbulence caused by wind or airflow at the windproof fabric interface. Experiments have shown that placing the microphone behind the porous sound pickup panel and the first waterproof component has significant acoustic advantages, and this structure can effectively improve voice clarity. This facilitates the pickup of weak sounds by the microphone, which can then be enhanced and amplified by the circuit and DSP.

[0067] The sound pickup porous panel 531 and the speaker porous panel 541 are panels containing multiple small holes, which help sound transmission and reduce the direct impact of airflow on the microphone.

[0068] The speaker cavity 52 is also equipped with an information processing module 3 and a power management module 4. The signal processing component is connected to the microphone circuit board and the playback module respectively through wires. The power supply component of the present application includes a rechargeable battery and a charging management system, which is used to manage the charging and discharging process of the battery. The rechargeable battery provides power support for the device, ensuring continuous power supply during long-term use.

[0069] More specifically, the signal processing component includes a digital signal processor (DSP) or other circuit boards with audio processing algorithms to enhance and optimize the processing of sound signals.

[0070] The device can be mounted on a flexible circuit board by means of a spring pin or a sheet, and assembled into a connecting cylinder by means of adhesive backing or adhesive dispensing.

[0071] A pad is provided between the speaker and the speaker porous panel. The pad is made of soft materials such as silicone or EVA to achieve acoustic sealing and isolate the vibration generated by the speaker.

[0072] See also Figure 3 The second embodiment of the present invention is applied in the field of medical equipment, especially oxygen masks worn by patients who require long-term oxygen therapy. The device can be fixed to a positive pressure oxygen mask by a simple snap or adhesive method, ensuring stability without affecting the sealing of the mask. A sound processing device is designed to be detachable and replaceable, which is convenient for maintenance and replacement. The specific implementation method is as follows:

[0073] The present application discloses a sound processing device applied to an oxygen mask, which includes a mask body 10 and a connecting tube 101, wherein the upper end of the connecting tube is connected to the input port. In specific implementation, according to design requirements, the connecting tube and the mask body can be integrally formed, and the connecting tube can also be detachably mounted on the input port. When the connecting tube is detachably mounted on the input port, its installation method can be adhesive, snap, threaded, etc., which will not be described here. The detachable installation method of the connecting tube and the mask body is within the scope of protection of the present application. A mounting hole is provided on the wall of the connecting tube, and the mounting hole is movably mounted on the sound pickup module. In specific implementation of the present application, the sound pickup module is movably mounted on the mounting hole to achieve the purpose of detachable installation of the sound pickup module. When the sound pickup module is removed, the mounting hole can cooperate with the cover body to achieve the purpose of sealing within the mask body.

[0074] After the wearer puts on the oxygen mask, the device is started, and the microphone of the sound pickup module begins to pick up the wearer's voice signal. After being processed by the information processing module 3, the playback module 2 plays the voice out to realize the intercom function.

[0075] The mask body 10 is provided with an input port for surrounding the wearer's mouth and nose;

[0076] an oxygen intake unit, wherein a connection end of the oxygen intake unit is fixedly connected to the input port and is used to deliver oxygen to the wearer;

[0077] At least one end of the sound pickup module 1 is located within the mask body 10 and faces the wearer's mouth to pick up the wearer's voice. In the specific implementation of this application, the sound pickup module 1 is detachable. When one end of the sound pickup module 1 is located within the mask body, clear voice communication can be achieved while wearing the oxygen mask, facilitating communication between medical staff and family members and the patient. By improving the communication environment, it can reduce the patient's psychological stress and help improve the treatment effect. The device is easy to install and has a reasonable design, making it easy to install and remove from existing oxygen masks without affecting the normal use of the mask.

[0078] In specific implementation, according to design requirements, the connecting tube and the mask body can be integrally formed, and the connecting tube can also be detachably installed on the input port. When the connecting tube is detachably installed on the input port, the installation method can be adhesive, snap, thread, etc., which will not be repeated here. The detachable installation methods of the connecting tube and the mask body are all within the scope of protection of this application.

[0079] The connecting tube 101 is provided with a mounting hole on its wall, and the mounting hole is movably mounted on the sound pickup module 1. In the specific implementation of the present application, the sound pickup module is movably mounted on the mounting hole, so that the sound pickup module can be detachably mounted. When the sound pickup module is detached, the mounting hole can be fitted with a cover to seal the mask body.

[0080] The pickup module 1 is provided with a mounting assembly for movably connecting with the mounting hole. In the specific implementation of this application, the mounting assembly is a snap-fit ​​structure that cooperates with the mounting hole to achieve the purpose of fixed installation. Of course, the snap-fit ​​structure is only one embodiment, and all installation methods that enable the pickup module 1 to cooperate with the mounting hole to achieve the purpose of fixed installation are within the scope of protection of this application.

[0081] The oxygen intake unit includes an oxygen intake pipe and an oxygen source. The oxygen intake pipe is fixedly connected to the lower port of the connecting pipe and the oxygen source.

[0082] After the wearer puts on the oxygen mask, the device is started, and the sound pickup module 1 starts to pick up the wearer's voice signal. After being processed by the information processing module 3, the playback module 2 plays the voice out to realize the intercom function.

[0083] In addition, it should be noted that, in this specification, "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0084] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A sound processing system, characterized in that: include, A sound pickup module, used to pick up the user's voice; A playback module, used to convert electrical signals into sound signals and play them; An information processing module is used to receive and process the signal from the sound pickup module and output the enhanced voice signal to the playback module; The power management module is used to power the sound processing system. The power management includes DC-DC, charging management unit and overvoltage and overcurrent protection devices.

2. A sound processing system according to claim 1, characterized in that: The information processing module is connected to the sound pickup module and the playback module through wires, provides power supply voltage to the sound pickup module, receives the signal picked up by the sound pickup module, performs voice enhancement processing on the signal collected by the sound pickup module, and outputs it to the playback module for playback.

3. A sound processing system according to claim 2, characterized in that: The sound pickup module includes a microphone or a microphone array and a microphone connection board, and the microphone or the microphone array is connected to the microphone circuit board.

4. A sound processing system according to claim 2, characterized in that: The information processing module includes a circuit board assembly that integrates a DSP and can run an audio processing algorithm.

5. A sound processing system according to claim 4, characterized in that: The audio processing algorithm includes a noise cancellation algorithm, an echo cancellation algorithm, a howling suppression algorithm, a gain control algorithm and a speech enhancement algorithm.

6. A sound processing system according to claim 1, characterized in that: The power management module includes a charging management system and a rechargeable battery. The charging management system monitors and manages the charging state of the rechargeable battery.

7. A sound processing device, characterized in that: A sound processing system comprising any one of claims 1 to 6, further comprising a shell, wherein an acoustic cavity and a speaker cavity are respectively provided at both ends of the shell, a sealing component is provided on the outer side of the shell, a pickup module and a first waterproof component are installed in the acoustic cavity, a playback module, a power management module and a second waterproof component are installed in the speaker cavity, and the pickup module and the playback module are electrically connected.

8. The sound processing device according to claim 7, characterized in that: The housing consists of a first housing and a second housing, and the first housing and the second housing are movably connected.

9. The sound processing device according to claim 8, characterized in that: The first shell includes a sound pickup porous panel, a first cylinder and a first partition that are sealed and connected. An acoustic cavity is formed between the sound pickup porous panel, the first cylinder and the second partition. The first waterproof component is installed and fixed to the sound pickup porous panel.

10. The sound processing device according to claim 9, characterized in that: The second shell includes a sealingly connected connecting cylinder, a second cylinder, a second partition and a speaker porous panel. The two ends of the connecting cylinder are respectively connected and fixed to the first cylinder and the second cylinder. A sound cavity is formed between the second cylinder, the second partition and the speaker porous panel. The second waterproof component is installed and fixed to the speaker porous panel.

Images