Audio datastream transcoding apparatus

A coded voice signal format converting apparatus is provided which is capable of converting a signal format of a coded voice signal by computations in reduced amounts. In the coded voice signal format converting apparatus, in a second coding device (120) is employed a quantizing accuracy information...

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Bibliographische Detailangaben
1. Verfasser:	TAKAMIZAWA, YUICHIRO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING DECODING 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:	A coded voice signal format converting apparatus is provided which is capable of converting a signal format of a coded voice signal by computations in reduced amounts. In the coded voice signal format converting apparatus, in a second coding device (120) is employed a quantizing accuracy information converting section (223) to which a first quantizing accuracy information output from a quantizing accuracy information decoding section (113) in a first decoding device (110, 210) is input. Second mapping signal is quantized by a mapped signal coding section (122) to produce a coded voice signal and the first quantizing accuracy information is converted so that it can be used by mapped signal coding section (122) to determine a second quantizing accuracy information.