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Aural signal compressed device and manner, aural signal restoration device and manner, and computer reading possible record media
Aural signal compressed device and manner, aural signal restoration device and manner, and computer reading possible record media
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机译:声音信号压缩装置和方式,声音信号恢复装置和方式以及计算机读取可能的记录介质
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摘要
A speech signal compression and/or decompression method, medium, and apparatus in which the speech signal is transformed into the frequency domain for quantizing and dequantizing information of frequency coefficients. The speech signal compression apparatus includes a transform unit to transform a speech signal into the frequency domain and obtain frequency coefficients, a magnitude quantization unit to transform magnitudes of the frequency coefficients, quantize the transformed magnitudes and obtain magnitude quantization indices, a sign quantization unit to quantize signs of the frequency coefficients and obtain sign quantization indices, and a packetizing unit to generate the magnitude and sign quantization indices as a speech packet. IMAGE
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