A low-complexity, high-quality, 64-Kbps audio codec with efficient bit allocation

Chan, Din-Yuen; Ku, Cheng-Yuan

doi:10.1016/s1051-2004(02)00005-2

Digital Signal Processing

2003

DOI: 10.1016/s1051-2004(02)00005-2

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A low-complexity, high-quality, 64-Kbps audio codec with efficient bit allocation

Din-Yuen Chan

Cheng-Yuan Ku

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2014

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Three Audio CODECs Using the LSM Interpolation and Comparison with PCM

Eisa

2014

BJMCS

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In this paper we take advantage of the known interpolation Least Square Method (LSM) to construct audio coding/decoding (CODEC) algorithms. The purpose of this algorithm is to compress audio data, maintain high quality audio, and enable sending/storing audio as serial data through digital transmission systems. Our proposed algorithms can be an efficient replacement for the quantization process used in many CODECs and modulations like PCM. We clarify our research by explaining the reasons, the assumptions, and the experiments' results for each step individually. We applied the algorithms to 20 audio files and introduced three algorithms that approach the most efficient compression ratio in addition to best signal to noise ratio. We showed Pseudo Codes, Flowcharts, and complete results of some experiments, and also a comparison with PCM used in telephony system.

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Three Audio CODECs Using the LSM Interpolation and Comparison with PCM

Eisa

2014

BJMCS

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A low-complexity, high-quality, 64-Kbps audio codec with efficient bit allocation

Cited by 1 publication

References 19 publications

Three Audio CODECs Using the LSM Interpolation and Comparison with PCM

Three Audio CODECs Using the LSM Interpolation and Comparison with PCM

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