PT2313音调电路驱动程序，4声道，可控制音量，高音，低音，平衡,-PT2313 tone circuit driver, 4-channel, control volume, treble, bass, balance,

语音识别方法。计算语音的长时特性。利用Gamma tone 进行子带划分，然后计算子带能量。-Speech Recognition. Voice of the long computing features. Using Gamma tone for sub-band division, and then calculate sub-band energy.