40results about How to "Improve hearing experience" patented technology

The invention discloses an audio setting method of a mobile terminal. The method comprises the following steps: playing a sound source by the mobile terminal, and receiving feedback of a user on the sound source to test a hearing feature of the user; and modifying sound listened by the user when having a call by use of the mobile terminal according to the hearing feature of the user. The invention further discloses a mobile terminal achieving the method. By means of the manner, the audio setting method disclosed by the invention can be used for improving the auditory experience of the user when having a call.

The invention provides a device, a method and a system for controlling an echo to a hand-free phone. The device substantially comprises an echo canceller. The method substantially comprises the following steps: a remote voice signal of a receiving channel and a proximal voice signal of the transmitting channel are sampled, and according to energy of the obtained remote voice signal samples and the obtained proximal voice signal samples, communication state information of the current network is determined. According to the communication state information of the current network, the voice signal in the transmitting channel is processed with the echo controlling. By using the invention, the echo in the digital hand-free phone is eliminated effectively.

The invention discloses a device and method for reducing total harmonic distortion. The device includes: a storage module for storing a harmonic distortion database; a file reading module for pre-reading the audio file to be played when playing an audio file audio data; the frequency component analysis module is used to obtain the main frequency components of the fundamental wave of the audio data, query the harmonic distortion database, and predict the amplitude and amplitude of the harmonic distortion generated after the waveform of the main frequency components passes through the hardware circuit of the terminal. phase; the reverse waveform adding module is used to add the reverse waveform of harmonic distortion to the audio data according to the amplitude and phase of the predicted harmonic distortion, and then transmit it to the audio playback module for playback. Therefore, on the premise of not increasing the hardware cost and modifying the hardware circuit, by adding the reverse waveform of the harmonic distortion in the digital domain, the effect of reducing the overall harmonic distortion is achieved, the high-fidelity index is improved, and the user experience is enhanced. auditory experience.

The invention discloses an audio output POP (Post Office Protocol) sound eliminating circuit, which comprises a reference voltage generation module, a voltage follower and an audio amplifier; the reference voltage generation module is connected to the first input end of the voltage follower, and is grounded via a decoupling capacitor C1; the second input end of the voltage follower is connected to the output end of the voltage follower and the forward output end of the audio amplifier; the reverse input end of the audio amplifier is used for inputting audio signals; the output end of the audio amplifier is connected to one end of a direct current blocking capacitor C0; the other end of the direct current blocking capacitor C0 is used for connecting an audio player; the output end of the voltage follower and the output end of the audio amplifier are connected via a first CMOS (Complementary Metal Oxide Semiconductor) switch; and the first input end of the voltage follower and the output end of the audio amplifier are connected via a second CMOS switch. According to the audio output POP sound eliminating circuit disclosed by the invention, all POP sounds generated in power supply and outage process of the audio output as well as in startup and shutdown process of the audio amplifier can be completely eliminated, the auditory feeling is improved, the structure is simple and the cost is low.

The present invention relates to a system and method for splicing speech segments for speech synthesis. First, two speech segments to be spliced ​​are extracted from a speech bank as a first speech segment and a second speech segment, and the first speech segment and the second speech segment are Select the best sampling point in the second speech segment; then, carry out first-order smoothing to the best sampling point, generate speech splicing point; First-order smoothing method is: calculate the slope ka, kb at the best sampling point U1, U2 place, and The numerical difference value deltaU of the best sampling points U1 and U2; predict according to the slope ka, kb and the difference value deltaU, and generate a speech splicing point. Finally, a speech splicing point is inserted between the first speech segment and the second speech segment to generate a third speech segment. The present invention solves the problem of voice spectrum hopping that occurs in direct splicing in the prior art, and the problem of excessive calculation through the autocorrelation search and accumulation smoothing method, and obtains a good continuous frequency spectrum at the splicing place through the first-order smoothing method. and enhance the user's hearing experience.

Embodiments of the present invention provide an electric vehicle sound control device and method, which belong to the technical field of electric vehicles. The electric vehicle sound control device includes: a working parameter acquisition unit, used to collect the first vehicle working parameters about the electric vehicle; a sound wave sound determination unit, used to determine the corresponding The first order sound wave sound of the first vehicle operating parameter, wherein the sound wave sound library stores multiple groups of order sound mapping relationships between multiple vehicle operating parameters and multiple order sound wave sounds of the reference engine; The sound control unit is used to generate a target masking sound based on the first order sound wave sound and output the target masking sound to the car to mask the motor whistling noise in the car, and / or generate a target masking sound based on the first order sound wave sound to generate the target warning sound and output the target warning sound to the outside of the vehicle. Therefore, calling a certain order of sound waves can improve the howling sound of the motor in the car, and can also realize the sound warning outside the car.

The invention relates to a sound diffusing device and a loudspeaker with the sound diffusing device. The loudspeaker comprises a housing, a speaker unit, a sound guiding cone, a first partition, a second partition and a cover components. The speaker unit is located in the casing. The speaker unit has a sound output side. The sound guide cone has a sound guide cone surface. The sound output side of the speaker unit faces the sound guide cone. The first partition and the second partition are respectively connected to opposite ends of the mask assembly. The first baffle, the second baffle and the cover assembly are movably located on the sound guiding cone surface. When at least one of the first partition and the second partition is driven, the angle between the first partition and the second partition is changed. The sound diffusing device and the loudspeaker having the sound diffusing device disclosed in the present invention can take into account both advantages of omnidirectionality and directivity.

The invention belongs to the field of audio data processing, and in particular relates to a method and system for dynamically adjusting playback volume according to wavelength. At present, when people play various audio files through audio devices, they all play them at a fixed volume, which cannot better reflect the ups and downs of the auditory effect of songs or music during playback. The system and method of the present invention correspond the wavelength of the audio data to the size of the volume, and dynamically detect the wavelength, calculate the volume value according to the wavelength, and then adjust the playback volume of the audio device to realize playing the same audio data with different volumes , that is, play at a high volume when the sound is heavy, and play at a low volume when it is soft, so that the heavy and light sounds of the audio data are played dynamically with the high and low frequencies of the audio equipment, achieving the effect of high and low sound fluctuations, increasing the user's entertainment experience and auditory experience.