6 results about "Loudness compensation" patented technology

The invention relates to an audio processing method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a gain amplitude value of a current audio signal and a signal flow loudness value of the current audio signal when the set volume of the audio signal is detected to be changed; determining the loudness amplitude value of the current audio signal according to the gain amplitude value and the signal flow loudness value; acquiring an audio compensation strategy corresponding to the loudness amplitude value; and performing loudness compensation on the audio signal according to the audio compensation strategy to obtain an audio signal meeting a preset loudness condition. According to the method, the user hearing change caused by the amplitude change of the input audio stream and the set volume change is comprehensively considered, the amplitude change of the input audio stream is calculated by adopting a loudness analysis algorithm, the loudness change is reflected more comprehensively and accurately, and the user experience is improved by calling corresponding compensation parameters. Therefore, the sound experience of the user is greatly improved, and a better audio playing effect is realized.

A method performed by an audio system that includes a headset for playing back audio, the method includes receiving an audio signal having audio content, determining a characteristic of the audio content, determining a parameter of the headset, producing a filtered audio signal by applying an equalization (EQ) filter to the audio signal based on the characteristic of the audio content and the parameter of the headset, and driving one or more speakers of the headset with the filtered audio signal.

A method and apparatus for adjusting loudness are disclosed, relating to the field of audio processing, to ensure consistent loudness when playing different music in scenarios where numerous audio formats coexist, and to achieve loudness effects close to those produced in a recording studio, thereby meeting the user's loudness requirements. The method includes: obtaining an audio resource from a media server based on an audio playback instruction; acquiring a first loudness value corresponding to the type of the audio resource determined by a first loudness algorithm; determining a loudness adjustment value for the audio resource, wherein the loudness adjustment value is a weighted sum of a loudness compensation value and a loudness difference value, the loudness compensation value corresponding to the first loudness algorithm and a first rendering algorithm, the first rendering algorithm being used to adjust the audio resource to match the channel distribution of the playback device; the loudness difference value being the difference between the target loudness and the first loudness value; and adjusting the loudness of the audio resource to the determined loudness adjustment value.

A decoder for generating an audio output signal having one or more audio output channels includes a receiving interface for receiving an audio input signal including a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated. Moreover, the decoder includes a signal processor for generating the one or more audio output channels of the audio output signal. The signal processor is configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information. Furthermore, the signal processor is configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. Moreover, an encoder is provided.

The invention discloses a loudness compensation method for a vehicle-mounted audio system, relates to the technical field of vehicle-mounted audio processing, and solves the technical problem of low loudness compensation precision of the audio system caused by interference of multiple noise sources in the prior art. The method comprises the following steps: collecting vehicle environment data through a multi-mode sensor array; performing mixed noise separation processing on the vehicle environment data, and outputting separated independent noise source features; on the basis of independent noise source features and the vehicle environment data, scene tags are generated through a scene cognition model; inputting the scene label into a reinforcement learning strategy network to generate a loudness compensation strategy; and implementing multi-band independent compensation and sound field control at the output end of the loudspeaker based on a loudness compensation strategy.

A decoder for generating an audio output signal having one or more audio output channels includes a receiving interface for receiving an audio input signal including a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated. Moreover, the decoder includes a signal processor for generating the one or more audio output channels of the audio output signal. The signal processor is configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information. Furthermore, the signal processor is configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. Moreover, an encoder is provided.