Data processing: speech signal processing – linguistics – language – Speech signal processing – Psychoacoustic
Reexamination Certificate
2003-04-25
2011-12-06
Armstrong, Angela A (Department: 2626)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Psychoacoustic
C704S270000, C704S231000
Reexamination Certificate
active
08073684
ABSTRACT:
An audio file is divided into frames in the time domain and each frame is compressed, according to a psycho-acoustic algorithm, into file in the frequency domain. Each frame is divided into sub-bands and each sub-band is further divided into split sub-bands. The spectral energy over each split sub-band is averaged for all frames. The resulting quantity for each split sub-band provides a parameter. The set of parameters can be compared to a corresponding set of parameters generated from a different audio file to determine whether the audio files are similar. In order to provide for the higher sensitivity of the auditory response, the comparison of individual split sub-bands of the lower order sub-bands can be performed. Selected constants can be used in the comparison process to improve further the sensitivity of the comparison. In the side-information generated by the psycho-acoustic compression, data related to the rhythm, i.e., related percussive effects, is present. The data known as attack flags can also be used as part of the audio frame comparison.
REFERENCES:
patent: 6370504 (2002-04-01), Zick et al.
patent: 6542869 (2003-04-01), Foote
patent: 6813600 (2004-11-01), Casey et al.
Abyad Mirna
Armstrong Angela A
Brady III Wade J.
Telecky , Jr. Frederick J.
Texas Instruments Incorporated
LandOfFree
Apparatus and method for automatic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for automatic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for automatic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4268454