AUDIO ENCODER, AUDIO DECODER AND RELATED METHODS FOR ENHANCING TRANSIENT PROCESSING, COMPUTER PROGRAM

AUDIO ENCODER, AUDIO DECODER AND RELATED METHODS FOR ENHANCING TRANSIENT PROCESSING, COMPUTER PROGRAM

An audio post-processor (100) for post-processing an audio signal (102) having a time-variable high frequency gain information (104) as side information comprises: a band extractor (110) for extracting a high frequency band (112) of the audio signal (102) and a low frequency band (114) of the audio...

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Bibliographische Detailangaben
Hauptverfasser: Reutelhuber, Franz, Adami, Alexander, Herre, Jürgen, Disch, Sascha, Ghido, Florin
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACOUSTICS
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
ELECTRICITY
MUSICAL INSTRUMENTS
PHYSICS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
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Beschreibung
Zusammenfassung:An audio post-processor (100) for post-processing an audio signal (102) having a time-variable high frequency gain information (104) as side information comprises: a band extractor (110) for extracting a high frequency band (112) of the audio signal (102) and a low frequency band (114) of the audio signal (102); a high band processor (120) for performing a time-variable modification of the high frequency band (112) in accordance with the time-variable high frequency gain information (104) to obtain a processed high frequency band (122); and a combiner (130) for combining the processed high frequency band (122) and the low frequency band (114). Furthermore, a pre-processor is illustrated.