13results about How to "Increase the loudness" patented technology

The utility model discloses a sounding unit, including basin stand, magnetic circuit system, conducting centering disk and a plurality of voice coil, magnetic circuit system is connected basin stand, magnetic circuit system includes yoke, and the central magnetic subassembly and first side magnetic structure that are respectively provided on yoke, central magnetic subassembly is located between at least one group of two oppositely arranged first side magnetic structure, the central magnetic assembly comprises a plurality of central magnetic structures which are arranged side by side, the yoke is provided with a window, two opposite side edges of the window are respectively connected with flanges, and the flanges are provided with openings; the voice coils and the central magnetic structures are arranged in a one-to-one correspondence manner, and partial areas of the voice coils are located between the central magnetic structures and the flanges; the conduction centering disk comprises an inner mounting part, a cantilever part and an outer mounting part which are connected in sequence, a partial area of the cantilever part corresponds to the window and is located between the two flanges, one end of the inner mounting part penetrates through the opening and is fixedly connected with the voice coil, and the outer mounting part is connected with the basin stand. The sound production unit has high performance.

The application discloses a protection and distortion control method and system during sound operation, and relates to the technical field of audio processing. An audio signal and a reference signal are acquired; the reference signal is preprocessed to obtain a trigger signal of a level effective value; a trigger threshold is acquired according to the trigger signal of the level effective value; the trigger threshold is adjusted to obtain a preset trigger threshold; the preset trigger threshold is dynamically adjusted according to a voltage value corresponding to a frequency of the audio signal to obtain a voltage value corresponding to the preset trigger threshold; and the audio frequency corresponding to the voltage value corresponding to the preset trigger threshold is a protected and distortion-controlled audio signal. The application realizes dynamic change of a high-frequency cutoff frequency of an audio high-frequency unit while maintaining the loudness of a sound field restoration of a sound system, and improves the protection and distortion control accuracy of the sound in a limit operation state of high power and long time.

The utility model discloses a sounding unit, which comprises a magnetic circuit assembly, a voice coil, a diaphragm assembly and a framework, the magnetic circuit assembly comprises an upper yoke, a lower yoke, a central magnetic structure and an edge magnetic structure, the central magnetic structure and the edge magnetic structure are respectively arranged on the lower yoke, and the upper yoke covers the central magnetic structure and the edge magnetic structure. The magnetic circuit assembly is provided with a magnetic gap, the magnetic gap surrounds the central magnetic structure, the magnetic gap is located between the upper yoke and the lower yoke, the magnetic circuit assembly is provided with a first magnetic loop and a second magnetic loop which are opposite in direction, the first magnetic loop penetrates through the upper portion of the magnetic gap, and the second magnetic loop penetrates through the lower portion of the magnetic gap. The second magnetic loop passes through the lower part of the magnetic gap; the framework comprises an inner mounting part, a connecting part and an outer mounting part which are connected in sequence, the inner mounting part is connected with the voice coil, the outer mounting part is connected with the transition part, the inner mounting part comprises a connecting plate and an inner side plate located on the inner side of the voice coil, and the connecting plate and the inner side plate are respectively bonded and fixed with the voice coil. The sound production unit is good in acoustic performance, and the skeleton and the voice coil are not easy to separate.

This invention discloses a super-linear loudspeaker and its manufacturing method, comprising a square bar-shaped loudspeaker body that cooperates with a display screen. The loudspeaker body includes a support frame, which includes a first-stage frame that cooperates with a sound-generating unit and a second-stage frame that cooperates with a magnetic circuit unit. The first-stage frame and the second-stage frame are arranged in a stepped manner. The magnetic circuit unit includes a magnetic cup and a magnet disposed within the magnetic cup. The sound-generating unit includes a diaphragm disposed at the top of the first-stage frame and a voice coil that drives the diaphragm to vibrate. A magnetic gap is formed between the magnet and the sidewall of the magnetic cup to cooperate with the voice coil. A main frame is disposed between the voice coil and the diaphragm. The top of the main frame is fixedly connected to the diaphragm, and the bottom of the main frame is fixedly connected to the voice coil. By optimizing the loudspeaker shape, adding a small diaphragm structure welded to the back of the FPC, and optimizing the magnetic circuit structure, the low frequency is better during sound generation, and the power consumption, distortion, and space occupation are smaller, resulting in higher loudness.

The application discloses a kind of multi-instrument collaborative synthesis method and related equipment based on MATLAB.The method comprises the following steps: setting standard sampling frequency, and constructing time vector corresponding to note duration based on the standard sampling frequency, establishing the frequency mapping relationship of scale covering the preset sound range, and determining the target fundamental frequency based on the input pitch parameter;For at least two target instruments, respectively call the acoustic parameter configuration corresponding to the target instrument, generate the single-instrument synthesis signal of the target instrument based on the target fundamental frequency;The audio signals of each target instrument are aligned on the multi-track time axis, and the audio signals of each target instrument are mixed based on the alignment result to generate a multi-instrument collaborative synthesis audio signal.Various solutions on the market can solve the problem that the operation threshold is high, lacks a unified integrated framework, and restricts the industry innovation and upgrading.

The utility model discloses a sounding unit, which comprises a magnetic circuit assembly, a voice coil, a diaphragm assembly and a framework, the magnetic circuit assembly comprises an upper yoke, a lower yoke, a central magnetic structure and an edge magnetic structure, the central magnetic structure and the edge magnetic structure are respectively arranged on the lower yoke, and the upper yoke covers the central magnetic structure and the edge magnetic structure. The magnetic circuit assembly is provided with a magnetic gap, the magnetic gap surrounds the central magnetic structure, the magnetic gap is located between the upper yoke and the lower yoke, the magnetic circuit assembly is provided with a first magnetic loop and a second magnetic loop which are opposite in direction, the first magnetic loop penetrates through the upper portion of the magnetic gap, and the second magnetic loop penetrates through the lower portion of the magnetic gap. The second magnetic loop passes through the lower part of the magnetic gap; the framework comprises an inner mounting part, a connecting part and an outer mounting part which are connected in sequence, the inner mounting part is connected with the voice coil, the outer mounting part is connected with the transition part, a stamping convex hull is arranged on the outer mounting part, and a reinforcing block is arranged in the stamping convex hull. The sound production unit is weak in high-frequency segmentation vibration phenomenon and has high performance.

The utility model discloses a sound unit, including two magnetic cover and two edge magnetic structure, two the magnetic cover is opposite to set up, and at least one the middle part of magnetic cover has the inner flanging, and the inner flanging is located between two the magnetic cover, the edge magnetic structure includes by lower to upper in proper order the lower edge magnetic steel, the edge huasi and upper edge magnetic steel, the lower edge magnetic steel and upper edge magnetic steel are connected different the magnetic cover respectively, the inner flanging is located between two the edge magnetic structure, and the distal end of inner flanging with the edge huasi corresponds. This sound unit has the superiority of high, and has reduced center huasi and at least one center magnetic steel, has realized the reduction of sound unit parts, has facilitated the assembly work of sound unit, is favorable to the promotion of the assembly efficiency of sound unit, reduces the assembly cost of sound unit, and alleviates the total weight of sound unit.

The utility model discloses a double magnetic circuit structure of ultrathin woofer, including shell, magnetic member, voice coil, damper and cone, the magnetic member includes first magnet and second magnet, first magnet is provided at one end portion of shell, second magnet is coaxially sleeved with first magnet inner side and is fixedly connected with first magnet, and the cone is provided with the first magnet. One end portion of the voice coil extends between the first magnet and the second magnet. The inner side and the outer side of the voice coil are respectively provided with one magnet, double magnetic circuits can be formed in the same loudspeaker space, compared with a conventional single magnet, the double-magnetic-circuit loudspeaker can generate larger magnetic field intensity when acting with the voice coil under the same condition, larger ampere force is formed to act on the voice coil, the cone is driven to generate larger amplitude, the sound loudness is improved, and the sound quality is improved. And the magnetic field can be relatively more uniform and stable through the washer, so that the fidelity of sound is improved to the greatest extent, and the sound effect quality of the loudspeaker is improved.

The utility model relates to a kind of bone conduction sound production device and bone conduction earphone, bone conduction sound production device includes support, vibrator assembly and stator assembly.Vibrator assembly is movably arranged in the inside of support, vibrator assembly includes magnetic circuit assembly, and the at least outer edge of the both ends of magnetic circuit assembly along first direction is formed first magnetic pole part and second magnetic pole part respectively, and the polarity of first magnetic pole part and second magnetic pole part is opposite;Stator assembly is fixedly arranged in the inside of support, and stator assembly includes first coil and second coil, and the current direction of first coil and second coil is opposite, and first magnetic guide support is arranged between first coil and second coil;First coil is encircled in the outside of first magnetic pole part, and second coil is encircled in the outside of second magnetic pole part;The utility model greatly improves the vibration intensity of vibrator assembly, so that the sensitivity of bone conduction sound production device in effective frequency domain range is effectively improved, thereby the loudness of bone conduction earphone is improved.

The utility model discloses a sounding unit, which comprises a magnetic circuit assembly, a voice coil, a diaphragm assembly and a framework, the magnetic circuit assembly comprises an upper yoke, a lower yoke, a central magnetic structure and an edge magnetic structure, the central magnetic structure and the edge magnetic structure are respectively arranged on the lower yoke, and the upper yoke covers the central magnetic structure and the edge magnetic structure. The magnetic circuit assembly is provided with a magnetic gap, the magnetic gap surrounds the central magnetic structure, the magnetic gap is located between the upper yoke and the lower yoke, the magnetic circuit assembly is provided with a first magnetic loop and a second magnetic loop which are opposite in direction, the first magnetic loop penetrates through the upper portion of the magnetic gap, and the second magnetic loop penetrates through the lower portion of the magnetic gap. The second magnetic loop passes through the lower part of the magnetic gap; the framework comprises an inner mounting part, a connecting part and an outer mounting part which are connected in sequence, the inner mounting part is connected with the voice coil, the outer mounting part is connected with the transition part, a stamping convex hull is arranged on the connecting part, and a reinforcing block is arranged in the stamping convex hull. The sounding unit is stable in structure and excellent in performance.

This invention discloses a sound-generating device and an electronic device, relating to the field of electroacoustic transduction technology. The sound-generating device comprises a first vibration component and a second vibration component that are opposite to each other along a first direction and spaced apart to form a front acoustic cavity. The outer casing has a sound outlet hole communicating with the front acoustic cavity. A first magnetic circuit component and a second magnetic circuit component of the magnetic circuit system are located on opposite sides of the vibration system along the first direction. The first magnetic circuit component includes three first magnets, and the second magnetic circuit component includes three second magnets. All three first magnets and three second magnets are magnetized along the first direction. Adjacent first magnets are magnetized in opposite directions, as are adjacent second magnets. The magnetization directions of the first magnets and second magnets opposite to each other along the first direction are also opposite. This invention not only achieves bi-directional radiation, improving the sound-generating performance and increasing the overall loudness of the device, but also enables a thin and light design, meeting the thin and light design requirements of terminal products.

The utility model discloses a sounding unit, which comprises a magnetic circuit assembly, a voice coil, a diaphragm assembly and a framework, the magnetic circuit assembly comprises an upper yoke, a lower yoke, a central magnetic structure and an edge magnetic structure, the central magnetic structure and the edge magnetic structure are respectively arranged on the lower yoke, and the upper yoke covers the central magnetic structure and the edge magnetic structure. The magnetic circuit assembly is provided with a magnetic gap, the magnetic gap surrounds the central magnetic structure, the magnetic gap is located between the upper yoke and the lower yoke, the magnetic circuit assembly is provided with a first magnetic loop and a second magnetic loop which are opposite in direction, the first magnetic loop penetrates through the upper portion of the magnetic gap, and the second magnetic loop penetrates through the lower portion of the magnetic gap. The second magnetic loop passes through the lower part of the magnetic gap; the voice coil is located in the magnetic gap; the framework comprises an inner mounting part, a connecting part and an outer mounting part which are connected in sequence, the inner mounting part is connected with the voice coil, the outer mounting part is connected with the transition part, and a reinforcing boss is arranged on the connecting part. The sounding unit is stable in structure and excellent in performance.

This utility model relates to a bone conduction sound generating device and a bone conduction headphone. The device includes a support, a vibrator assembly, and a stator assembly. The vibrator assembly is movably disposed inside the support and includes a magnetic circuit assembly. At least at its outer edge, the magnetic circuit assembly has a first magnetic pole portion, a second magnetic pole portion, and a third magnetic pole portion located between the first and second magnetic pole portions along a first direction. The first and second magnetic pole portions are respectively located at both ends of the magnetic circuit assembly along the first direction. The stator assembly is fixedly disposed inside the support and includes a first coil. A first magnetic guide support and a second magnetic guide support are respectively disposed at both ends of the first coil along the first direction, and both the first and second magnetic guide supports also surround the outside of the magnetic circuit assembly. This utility model effectively improves the vibration intensity of the vibrator assembly, thereby effectively improving the sensitivity of the bone conduction sound generating device in the effective frequency range, and thus improving the loudness of the bone conduction headphone.