Apparatuses and Methods for Audio Classifying and Processing
AssigneeDolby Laboratories Licensing Corporation
InventorsLie LU, Alan J. SEEFELDT, Jun WANG
Life of this patent
Estimating the term…
Abstract
Apparatus and methods for audio classifying and processing are disclosed. In one embodiment, an audio processing apparatus includes an audio classifier for classifying an audio signal into at least one audio type in real time; an audio improving device for improving experience of audience; and an adjusting unit for adjusting at least one parameter of the audio improving device in a continuous manner based on the confidence value of the at least one audio type.
Claims103
An audio processing apparatus comprising:
- an audio classifier for classifying an audio signal into at least one audio type in real time;
- an audio improving device for improving experience of audience;
- and
- an adjusting unit for adjusting at least one parameter of the audio improving device in a continuous manner based on the confidence value of the at least one audio type.
An audio classifier, comprising:
- a short-term feature extractor for extracting short-term features from short-term audio segments each comprising a sequence of audio frames;
- a short-term classifier for classifying a sequence of short-term segments in a long-term audio segment into short-term audio types using respective short-term features;
- a statistics extractor for calculating the statistics of the results of the short-term classifier with respect to the sequence of short-term segments in the long-term audio segment, as long-term features;
- and
- a long-term classifier for, using the long-term features, classifying the long-term audio segment into long-term audio types.
An audio processing method comprising:
- classifying an audio signal into at least one audio type in real time;
- and
- continuously adjusting at least one parameter for audio improvement based on the confidence value of the at least one audio type.
An audio classifying method, comprising:
- extracting short-term features from short-term audio segments each comprising a sequence of audio frames;
- classifying a sequence of short-term segments in a long-term audio segment into short-term audio types using respective short-term features;
- calculating the statistics of the results of classifying operation with respect to the sequence of short-term segments in the long-term audio segment, as long-term features;
- and
- classifying the long-term audio segment into long-term audio types using the long-term features.
A computer-readable medium having computer program instructions recorded thereon, when being executed by a processor, the instructions enabling the processor to execute an audio processing method comprising:
- classifying an audio signal into at least one audio type in real time;
- and
- adjusting at least one parameter for audio improvement in a continuous manner based on the confidence value of the at least one audio type.
A computer-readable medium having computer program instructions recorded thereon, when being executed by a processor, the instructions enabling the processor to execute an audio classifying method comprising:
- extracting short-term features from short-term audio segments each comprising a sequence of audio frames;
- classifying a sequence of short-term segments in a long-term audio segment into short-term audio types using respective short-term features;
- calculating the statistics of the results of classifying operation with respect to the sequence of short-term segments in the long-term audio segment, as long-term features;
- and
- classifying the long-term audio segment into long-term audio types using the long-term features.
Dependencies are inferred from the claim text.