ENCODER, DECODER, ENCODING METHOD, DECODING METHOD, AND ASSOCIATED PROGRAMS

An encoder comprises: a first encoding unit (102) that encodes a low-band signal having a frequency lower than or equal to a predetermined frequency from a voice or audio input signal to generate a first encoded signal, and decodes the first encoded signal to generate a low-band decoded signal; a se...

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Hauptverfasser:	NAGISETTY, Srikanth, EHARA, Hiroyuki, LIU, Zong Xian
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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creator	NAGISETTY, Srikanth EHARA, Hiroyuki LIU, Zong Xian
description	An encoder comprises: a first encoding unit (102) that encodes a low-band signal having a frequency lower than or equal to a predetermined frequency from a voice or audio input signal to generate a first encoded signal, and decodes the first encoded signal to generate a low-band decoded signal; a second encoding unit (106) that encodes, on the basis of the low-band decoded signal, a high-band signal from the voice or audio input signal having a band higher than that of the low-band signal to generate a high-band encoded signal; and a first multiplexing unit (103) that multiplexes the first encoded signal and the high-band encoded signal to generate and output an encoded signal, wherein the second encoding unit (106) calculates an energy ratio between a high-band noise component, which is a noise component of the high-band signal, and a high-band non-tonal component of a high-band decoded signal generated from the low-band decoded signal and outputs the calculated ratio as the high-band encoded signal.
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a second encoding unit (106) that encodes, on the basis of the low-band decoded signal, a high-band signal from the voice or audio input signal having a band higher than that of the low-band signal to generate a high-band encoded signal; and a first multiplexing unit (103) that multiplexes the first encoded signal and the high-band encoded signal to generate and output an encoded signal, wherein the second encoding unit (106) calculates an energy ratio between a high-band noise component, which is a noise component of the high-band signal, and a high-band non-tonal component of a high-band decoded signal generated from the low-band decoded signal and outputs the calculated ratio as the high-band encoded signal.</description><language>eng ; fre ; ger</language><subject>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 ; 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subjects	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
title	ENCODER, DECODER, ENCODING METHOD, DECODING METHOD, AND ASSOCIATED PROGRAMS
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