The differential coding is performed in the time domain, while the space-frequency coding is processed in the frequency domain to achieve the diversity ga.
该方法在时域进行差分编码，而在频域进行空频编码以获得分集增益。
Chinese speech waveform coding synthesis is based on the time domain pitch synchronous overlap add(PSOLA)method and a Chinese syllable dictionary.
以时域基音同步叠加（PSOLA）技术和一个全汉语单音节库为合成单元进行汉语语音波形编码合成。
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