267 results about "Bass (sound)" patented technology

A technique for enhancing audio signals generated from compressed digital audio files is described. The technique uses a Bass Maximizer module, a Harmonic Exciter module and a Quasi Stereo module. The Bass Exciter module enhances the intensity, depth and punch of the bass audio content by creating harmonic sequences from low frequency components contained in the original input signal. The Harmonic Exciter module adds to the treble audio content of the original input signal by generating harmonic series from the high frequency components contained in the input signal. The Quasi Stereo Module creates a stereo image of the enhanced input signal by adding and subtracting delayed and filtered versions of the enhanced input signal with itself to create left and right channeled stereo-like outputs. The technique provides a useful tool to regenerate from an audio signal more pleasant and joyful sounds.

The present invention relates to an audio control device using a multi-screen. The audio control device has a touch screen on which a bass axis and a treble axis for the sound of audio equipment are displayed in a multidimensional fashion, and on which a point selected by a user for audio control is inputted. An audio control section collectively calculates a bass value and a treble value corresponding to the point selected for audio control. A control section controls a speaker based on a result calculated by the audio control section.

Multiple speakers and isobaric chambers are used to enhance sound quality in an earbud. The earbud has a housing with a sound outlet, a first and second isobaric chambers that are in communication with the outlet. Two sound drivers in the housing are positioned to emit sound waves into the isobaric chambers separately. A divider is used to guide sound waves by creating an elongated channel in the second isobaric chamber. An ear hook has a third isobaric chamber and a third sound driver positioned to emit sound wave into the third isobaric chamber. The third isobaric chamber is in communication with the outlet through the second isobaric chamber.

A passive radiator has an arcuate contour that follows the contour of the surface where the passive radiator is mounted. The component may be a television set, audio component, high fidelity loudspeaker, home theater loudspeaker, subwoofer, etc. The arcuate contour of the passive radiator may be convex, parabolic, hyperbolic, or a combination thereof. Furthermore, the convex surface may be cylindrical, spherical or another contour depending on surface contour of the enclosure where it is mounted. The passive radiator rim shape may be circular, rounded rectangular, ovular, elliptical or any other suitable shape. A contoured passive radiator of relatively large size can be mounted on a relatively small TV set, for example a contoured passive radiator equivalent to 8″ diameter for a small television set of 14″, thus producing a better bass sound. The contoured passive radiator has wider sound directivity, hence reducing the irregularity of the SPL of the bass sound. Compared to a bass reflex system, a passive radiator does not produce turbulent sound as well as reflected sound from inside the enclosure.

A disclosed coaxial audio speaker may include a treble sound unit and a bass sound unit co-axially surrounding the treble sound unit. The bass sound unit may be in form of a single magnetic gap mechanism and have a magnetic-conductive base. The magnetic-conductive base may be with an auxiliary magnetic adjoining space and a coil movement space adjacent to the auxiliary magnetic adjoining space. A magnet, a vibrating vocal tone diaphragm along with a wiring board may be disposed within the coil movement space. A bass vibration audio source point and a treble vibration audio source point may be at the same horizontal level. Therefore, the size of the audio speaker may be reduced. And the broader electricity adjustability may be achieved as the bass vibration audio source point and the treble vibration audio source point may be horizontally aligned.

The invention provides a sound production device, which comprises a shell and a vibration assembly, and is characterized in that the vibration assembly comprises a diaphragm and a voice coil, the voice coil is of a hollow columnar structure, and the diaphragm is combined on one end surface of the voice coil; the loudspeaker further comprises a system stabilizing part. The system stabilizing part is combined on the end face of the voice coil or combined on the side wall of the voice coil. The system stabilizing part is of a linear structure, is formed by winding a metal wire, and comprises a first connecting part connected with the voice coil, a deformation part and a second connecting part connected with the shell. The invention further provides electronic equipment which comprises the sound production device. By adopting the sounding device with the structure, the voice coil cannot be polarized under the condition of large displacement, and the free vibration of the voice coil cannotbe hindered by the system stabilizing part with the novel structure. The electronic equipment adopting the sound production device has a good bass effect and good acoustic performance.

To improve upon a method of adjusting at least one filter parameter such as the mid-frequency of at least one filter unit provided with a playback system for audio signals, this filter unit being provided in particular for at least one digital equalizer assigned to the playback system, as well as an associated playback system so as to achieve automatic optimization of an acoustically correct bass level boosting,

• [a] first the acoustic frequency response is determined,
• [b] then a cutoff frequency below which the sound pressure falls below a sound pressure threshold level based on the average sound pressure is determined, and
• [c] next the filter parameter(s) of the filter unit is/are adjusted automatically, so that the mid-frequency of the filter unit is just above the cutoff frequency thus determined.

The invention relates to a loudspeaker system or device configured such that the sound field generated by the system or device is controllable. The system or device comprises Left (16, 18; 41, 43) and Right (15, 17; 42, 46) loudspeaker arrangements configured for radiating at least mid and high frequency sounds to the surroundings (R) and for controlling the sound radiation pattern (21, 22, 23, 24, 25, 26) of the left and right loudspeaker arrangements, respectively, such that the beam width and/or direction of the main lobe of the directivity pattern for the respective Left and Right loudspeaker arrangements can be varied; and at least one signal processor configured to process the signals to be provided to the loudspeakers of the respective loudspeaker arrangements such that the directional characteristics of the loudspeakers in each respective arrangement can be varied. The system or device may further comprise a low frequency arrangement comprising an arrangement of one or more loudspeakers (11, 12, 13, 14, 37) mounted in an enclosure (1) and configured such that the loudspeakers radiates sound energy to the surroundings (R). The low frequency arrangement may be configured as a bass-reflex enclosure with a wide port region. By means of the system or device according to the invention, the resulting directional characteristic of the system or device can be adapted to numerous specific use situations, for instance to obtain a stereo-stabilizing effect on a perceived sound image.

The invention relates to a sound box based on an oppositely buckled passive radiator. The sound box comprises a prolate box body, a high pitch loudspeaker mounting hole and a mid-bass loudspeaker mounting hole distributed along the length direction of the box body are opened in the top of the box body, a high pitch loudspeaker unit is mounted in the high pitch loudspeaker mounting hole, and a mid-bass loudspeaker unit is mounted in the mid-bass loudspeaker mounting hole; a passive radiator unit is mounted on the right side of the mid-bass loudspeaker unit through a radiator bracket, and the central axial line of the passive radiator unit is mutually parallel to the central axial lines of the high pitch loudspeaker unit and the mid-bass loudspeaker unit; the radiator bracket is provided with two sound outlets which are symmetrically arranged at 180 degrees, the two sound outlets respectively face to front and back side faces of the box body, and sound outlet holes communicated with the sound outlets are respectively formed in the front and back side faces of the box body. The sound box provided by the invention both has the advantages of the passive radiator sound box and can perfect the defects of poor vertical transient stability, high cut-off frequency and large total loss Ql value, so as to ensure a good sound effect for the sound box.

A music piece analyzer includes: a beat-position-acquiring-unit configured to detect beat positions in music piece data; a snare drum detector configured to detect sounding positions of a snare drum in the music piece data; a bass drum detector configured to detect sounding positions of a bass drum in the music piece data; a one-beat-shift-determination-unit configured to determine whether a bar beginning of the music piece data is shifted by one beat based upon the sounding positions of the snare drum detected by the snare drum detector; a two-beat-shift-determination-unit configured to determine whether the bar beginning of the music piece data is shifted by two beats on a basis of the sounding positions of the bass drum detected by the bass drum detector; and a bar-beginning-setting-unit configured to set the bar beginning of the music piece data on a basis of results determined by the one-beat-shift-determination-unit and the two-beat-shift-determination-unit.

A bass management system and method for mitigating bass management errors by using explicit information available in the object audio rendering process and deriving the correct subwoofer contributionfor each audio object. Embodiments of the bass management system and method are used to maintain the correct balance of the bass reproduced by the subwoofer relative to the sound coming out of the other speakers. The system and method are useful for a variety of different speaker configurations, including speaker configurations having different speaker sub-zones. Power-normalized gain coefficientsfor each speaker are combined and the power of the combined gain coefficients is computed and used to obtain a power- preserving subwoofer contribution coefficient. This subwoofer contribution coefficient is applied to the bass portion of the audio signal and audio objects to determine the contribution of a particular subwoofer.

An audio compensating device comprises a left input end and a right input end which are respectively used for receiving a left channel sound input signal and a right channel sound input signal that are output by a player. The audio compensating device also comprises a left output end and a right output end which are respectively used for outputting the left channel sound input signal and the right channel sound input signal to an earphone. The audio compensating device further comprises a frequency compensating unit. The frequency compensating unit is coupled between the left and right input ends and the left and right output ends, is used for selecting the low range component of left and right channel sound input signals which are input from the left input end and the right input end, and crossly couples the low range component to the left and right channel sound input signals after amplifying and adjusting amplitude. The audio compensating device can improve the bass effect of soundoutput from the earphone and can be realized with a simple analog circuit.

The invention discloses electronic equipment which comprises a first folding component and a second folding component, the first folding component is connected with the second folding component, the first folding component comprises a sound production module, and the second folding component is provided with an expansion cavity; the sound production module comprises a module shell and a sound production main body arranged in the module shell, and the sound production main body divides the module shell into an acoustic front cavity and an acoustic rear cavity; the acoustic rear cavity is provided with a first opening, the first opening is provided with a first plugging part, and the expansion cavity is provided with a second opening; the first plugging part can avoid at least part of the first opening, and the acoustic rear cavity is communicated with the expansion cavity through the first opening and the second opening. According to the scheme, the problem of poor bass performance of the sounding module of the existing electronic equipment can be solved.

A loudspeaker unit for producing sound at bass frequencies an array of two or more diaphragms. The first radiating surface and the second radiating surface are located on opposite faces of the diaphragm, and one or more of the diaphragms are included in a first subset of the diaphragms and one or more of the diaphragms are included in a second subset of the diaphragms; a plurality of drive units.

The invention relates to the technical field of sound equipment, in particular to wireless charging sound box. The wireless charging sound box comprises a main body, an upper shell, an upper cover, aloudspeaker and a wireless PCBA, the upper shell is mounted at the top of the main body; a control panel is arranged at the bottom of the rear side of the main body; the left and right side walls of the main body are respectively provided with sound outlets. The wireless PCBA is installed in the main body, an induction coil is installed at the top of the wireless PCBA, an inner shell is installedbelow the wireless PCBA, loudspeakers are installed on the left side wall and the right side wall of the inner shell respectively, a sound outlet pipe is arranged between the main body and the inner shell, and the two ends of the sound outlet pipe penetrate through the sound outlet pipe and the side wall of the main body respectively. The sound box provided by the invention is rich in bass and good in bass analysis capability; and the wireless charging function is achieved, mobile equipment such as a mobile phone can be charged in a wireless mode, and high applicability is achieved.

The invention discloses a sound production device and an earphone, and the sound production device comprises a shell, a high-pitch unit and a low-pitch unit; the high-pitch unit is fixed to the shell and located in the shell, the high-pitch unit comprises a magnetic conduction shell, a magnetic conduction vibrating diaphragm and a high-pitch magnetic circuit system, the magnetic conduction vibrating diaphragm and the high-pitch magnetic circuit system are arranged in the magnetic conduction shell, and the magnetic conduction vibrating diaphragm is suspended in the high-pitch magnetic circuit system. The high pitch magnetic circuit system is used for generating an alternating electromagnetic field to drive the magnetic conductive diaphragm to vibrate. The bass unit is fixed with the shell and located in the shell, the bass unit comprises a bass magnetic circuit assembly, a bass vibrating diaphragm and a bass voice coil connected with the bass vibrating diaphragm, a bass magnetic gap for the insertion of the bass voice coil is formed between the bass magnetic circuit assembly and the magnetic conductive shell, and the bass unit and the treble unit are coaxially arranged. According to the sound production device, the high-frequency performance and the low-frequency performance are both considered, the sound-electricity conversion efficiency of the high-pitch unit is high, the occupied space of the sound production device in the earphone is reduced, and the magnetic circuit efficiency is improved.

A method for manufacturing a novel Qin zither relates to the field of music instruments. A front bridge and a rear bridge are arranged on the upper surface of a panel, zither holes are formed in the outer sides of the front bridge and the rear bridge, zither strings are arranged between the corresponding left zither holes and right zither holes and penetrate through grooves in the tops of movable tuning keys on a panel, a front plug and a rear plug are arranged on the left side and the rear side of the panel, an inner side plate and an outer side plate are arranged on the front side and the rear side of the panel, and a string shaft plate is arrange on the lower surface of the panel and is arranged at the position corresponding to the rear bridge. Thin, thick and neat strip-shaped tune grooves graved by a manual graver are formed in the lower surface of the panel, and tune holes formed by connecting circles with triangles are formed in a bottom plate. According to the method for manufacturing the novel Qin zither, acoustic space is enlarged, sound conduction is facilitated, and sound resonance is increased, so that high pitch is clear and melodious, bass is deep, tone quality is pure, and timbre is beautiful.

The disclosed apparatus extracts particular instrument sounds included in music in real time during music reproduction. The audio processing section 12 has an attack decision section 42 that decides attack positions of the bass drum sounds in audio signals, a bass drum sounds decision section 43 that decides sound periods of the bass drum in the audio signals, and a bass drum sounds extraction section 44 that extracts bass drum sounds using a time varying type filter for the attack positions and an adaptive type filter for the sound periods.

The Present Invention is for a speaker system both standalone and in a phonograph that greatly reduces sympathetic vibration and feedback due to interaction of sound vibration transmitted from bass speakers to the chassis. The solution is twofold. First, the speakers are mounted in a substantially airtight enclosure. Second, the substantially airtight enclosure is suspended within the sound system chassis using elastic members in tension. A typical elastic member is an extension spring. In a phonograph, the elastic suspension almost completely isolates vibrations of the speaker enclosure from the phonograph chassis, thereby drastically reducing sympathetic vibration and feedback, and accommodating new depths of bass extension.

The embodiment of the invention relates to the field of loudspeaker structures, in particular to a loudspeaker and electronic equipment. The loudspeaker takes a moving coil horn as a first sounding unit, a second sounding unit is arranged in the middle of one side of a magnetic circuit structure of the first sounding unit, and the first sounding unit and the second sounding unit respectively output sounds with different frequencies. The loudspeaker can meet the requirements of high and low pitches at the same time, and the high-frequency extension and low-frequency diving performance is improved. The loudspeaker is small in axial size, and the overall thickness of the loudspeaker is close to the thickness of the single moving coil unit. The second sound production unit and the first sound production unit are coaxially arranged, and the high-pitch vibration sound source surface of the second sound production unit and the low-pitch vibration sound source surface of the first sound production unit are arranged in a coplanar manner, so that the condition of phase difference between sounds of different frequencies can be reduced, and the spatial position feeling of the musical instrument is more accurate. The voice coil and the annular vibrating diaphragm are elastically supported on the basin frame by adopting the elastic suspension, so that the voice coil and the annular vibrating diaphragm can vibrate in a preset range, the condition of swinging polarization is reduced, and the reliability is improved.

An acoustical grille (1) secured to a top of a receiver (50) of microphone (5) with an annular ring (10) free from spit moisture installed to a rim of the acoustical grille (1) with grille shells (11) shielded over the receiver (50); at least, a stand (2) connected between the annular ring (10) and positioning ring (3), whereby a distance kept between the grille shells (11) and the receiver (50). Grille shell (11) not only prevents spit in but low pitch, mid pitch, and high pitch sounds can be superimposed received into the receiver (50). Confused or harsh sound emissions of users or breath sounds can be absorbed between the grille shells (10), thereby sounds picked up by the microphone demands for a higher pitch, where the original sounds can be tuned within higher vocal compass. It may be played at soft volume; the sounds are mellow and expressive.