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KR940008280A - Encoding and Decoding Device of Speech Compression System - Google Patents

Encoding and Decoding Device of Speech Compression System Download PDF

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Publication number
KR940008280A
KR940008280A KR1019920017637A KR920017637A KR940008280A KR 940008280 A KR940008280 A KR 940008280A KR 1019920017637 A KR1019920017637 A KR 1019920017637A KR 920017637 A KR920017637 A KR 920017637A KR 940008280 A KR940008280 A KR 940008280A
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KR
South Korea
Prior art keywords
data
bit
pcm data
adpcm
encoding
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Application number
KR1019920017637A
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Korean (ko)
Inventor
이성용
김흥국
김대중
Original Assignee
정용문
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019920017637A priority Critical patent/KR940008280A/en
Publication of KR940008280A publication Critical patent/KR940008280A/en

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Abstract

본 발명은 64kbps의 8비트 PCM데이타를 32kbps의 4비트 ADPCM데이타로 부호화를 수행하는 동시에 이와 역으로의 동작과정을 수행하는 장치를 범용의 DSP코어를 이용하여 구현한다. 이를 위하여 DSP코어에 엔코더, 디코더 및 메모리를 구비한다. 그리고 DSP 코어의 메모리에는 픽스 포인트연산 32kbps ADPCM알고리즘을 내장시킨다. 따라서 수신되는 64kbps의 8비트 PCM데이타는 엔코더에서 부호화 알고리즘에 의해 32kbps의 4비트 ADPCM데이타로 압축 부호화하고, 디코더에서는 수신되는 32kbps의 4비트 ADPCM데이타는 역시 복호화 알고리즘에 의해 64kbps의 8비트 PCM데이타로 복호화 한다.The present invention implements an apparatus for performing encoding operation of 64 kbps 8 bit PCM data to 32 kbps 4 bit ADPCM data and vice versa using a general purpose DSP core. For this purpose, an encoder, decoder and memory are provided in the DSP core. The DSP core's memory incorporates a 32kbps ADPCM algorithm. Therefore, 8-bit PCM data of 64kbps received is compressed and encoded into 32-bit 4-bit ADPCM data by the encoding algorithm in the encoder, and 32-bit 4-bit ADPCM data received by the decoder is also converted into 8-bit PCM data of 64kbps by the decoding algorithm. Decrypt

Description

음성 압축 시스템의 부호화 및 복호화장치Encoding and Decoding Device of Speech Compression System

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 음성 데이타를 압축 부호화 하는 흐름도.1 is a flowchart for compressing and encoding speech data.

제2도는 압축부호화한 음성 데이타를 부호화하는 흐름도.2 is a flowchart for encoding compressed coded speech data.

제3도는 본 발명을 수행하기 위한 음성 압축 시스템의 구성도.3 is a schematic diagram of a speech compression system for carrying out the present invention;

제4도는 제3도의 상세 구성도.4 is a detailed configuration diagram of FIG.

Claims (3)

음성데이터를 압축하는 시스템의 부호화/복호화 장치에 있어서, 수신되는 아날로그 음성 신호를 직렬PCM데이타로 변환 출력하고, 수신되는 직렬 PCM데이타를 아날로그 음성 신호로 변환 출력하는 PCM처리 수단과, 상기 PCM처리 수단과 연결되며, 수신되는 직렬 PCM데이타를 병렬 PCM데이타로 변환 출력하고 병렬 PCM데이타를 직렬 PCM데이타로 변환 출력하는 변환 수단과, 픽스 포인트연산 ASPCM알고리즘을 내장하며, 음성 데이타를 압축부호화 및 복호화하는 동작을 제어하는 수단과, 상기 병렬 PCM데이타를 수신하며, 상기 제어수단의 부호화 프로그램에 의해 제어되어 수신되는 PCM데이타를 압축 부호화하여 ADPCM데이타로 변환 출력하는 엔코더 수단과, 상기 ADPCM데이타를 수신하며, 상기 제어수단의 복호화 프로그램에 의해 제어되어 수신되는 ADPCM데이타를 병렬 PCM 데이타로 복호화하여 출력하는 디코더 수단으로 구성된 것을 특징으로 하는 음성압축 시스템의 부호화 및 복호화 장치.An encoding / decoding apparatus of a system for compressing speech data, comprising: PCM processing means for converting and outputting received analog speech signal into serial PCM data, and converting and outputting received serial PCM data into analog speech signal; A conversion means for converting and outputting received serial PCM data into parallel PCM data and converting and outputting parallel PCM data into serial PCM data, and a built-in fix point operation ASPCM algorithm, and compressing and decoding speech data. A means for controlling the; and an encoder means for receiving the parallel PCM data, converting and outputting the PCM data controlled and controlled by the coding program of the control means into ADPCM data, and receiving the ADPCM data, The ADPCM data controlled by the decoding program of the control means is received. Encoding and decoding apparatus of a speech compression system, characterized in that the decoder is configured as means for outputting the decoded data in PCM. 제1항에 있어서, 상기 엔코더 수단이 64kbps의 8비트 병렬 PCM데이타를 수신하며, 상기 제어수단으로 부터 출력되는 픽스 포인트연산 34kbps ADPCM 알로리즘에 의해 32kbps의 4비트 병렬 ADPCM 데이타로 압축부호화하는 것을 특징으로 하는 음성압축 시스템의 부호화 및 복호화 장치.2. The encoder according to claim 1, wherein the encoder means receives 8-bit parallel PCM data of 64 kbps and compresses and encodes the 32-bit 4-bit parallel ADPCM data by the fix point operation 34 kbps ADPCM algorithm outputted from the control means. An apparatus for encoding and decoding a speech compression system. 제1항 또는 제2항에 있어서, 상기 디코더 수단이 32kbps의 4비트 병렬 PCM데타를 수신하며, 상기 제어수단으로 부터 출력되는 픽스 포인트연산 ADPCM알로리즘에 의해 64kbps의 8비트 병렬 PCM데이타로 복호화하는 것을 특징으로 하는 음성압축 시스템의 부호화 및 복호화 장치.The decoder according to claim 1 or 2, wherein the decoder means receives a 4-bit parallel PCM data of 32 kbps, and decodes into 64-bit 8-bit parallel PCM data by a fix point arithmetic ADPCM algorithm output from the control means. An encoding and decoding apparatus of a speech compression system, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920017637A 1992-09-26 1992-09-26 Encoding and Decoding Device of Speech Compression System KR940008280A (en)

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KR1019920017637A KR940008280A (en) 1992-09-26 1992-09-26 Encoding and Decoding Device of Speech Compression System

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KR1019920017637A KR940008280A (en) 1992-09-26 1992-09-26 Encoding and Decoding Device of Speech Compression System

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100359528B1 (en) * 2000-10-12 2002-11-22 주식회사 윤텔 Mp3 encoder/decoder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100359528B1 (en) * 2000-10-12 2002-11-22 주식회사 윤텔 Mp3 encoder/decoder

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