Systems and methods for encoding an audio signal using custom psychoacoustic models
AssigneeMimi Hearing Technologies GmbH
InventorNicholas R. CLARK
Life of this patent
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Abstract
Systems and methods are provided for modifying an audio signal using custom psychoacoustic methods, for encoding the audio signal. A user's hearing profile is first obtained. Subsequently, a sample of the audio signal is split into frequency components. Next, masking and hearing thresholds are obtained from the user's hearing profile and applied to the frequency components of the audio sample, wherein the user's perceived data is calculated. User's imperceptible audio signal data is then disregarded. The audio sample is quantized and the resulting transformed audio sample encoded.
Claims15
A method for modifying an audio signal for encoding the audio signal, the method comprising:
- obtaining a hearing profile;
- splitting a sample of the audio signal into frequency acomponents;
- obtaining masking thresholds from the hearing profile;
- obtaining hearing thresholds from the hearing profile;
- applying the masking and hearing thresholds to the frequency components and disregarding an imperceptible audio signal data;
- quantizing the audio signal;
- and
- encoding the audio signal.
An audio processing device comprising:
- a processor;
- and
- a memory storing instructions, which when executed by the processor, causes the processor to:
- obtain a hearing profile;
- split a sample of the audio signal into frequency components;
- obtain masking thresholds from the hearing profile;
- obtain hearing thresholds from the hearing profile;
- apply the masking and hearing thresholds to the frequency components and disregarding an imperceptible audio signal data;
- quantize the audio signal;
- and
- encode the audio signal.
A non-transitory computer readable storage medium storing a instructions which when executed by a processor of an audio processing device, causes the processor to:
- obtain a hearing profile;
- split a sample of the audio signal into frequency components;
- obtain masking thresholds from the hearing profile;
- obtain hearing thresholds from the hearing profile;
- apply the masking and hearing thresholds to the frequency components and disregarding an imperceptible audio signal data;
- quantize the audio signal;
- and
- encode the audio signal.
Dependencies are inferred from the claim text.