·詳細(xì)說明:Goertzel算法是DTMF信號檢測的核心,它利用二極點(diǎn)的IIR濾波器計(jì)算離散傅立葉變換值,快速有效的提取輸入信號的頻譜信息。-Goertzel algorithm is the DTMF signal examination core, it uses two extremes the IIR filter computations to be separated Fourier t
·詳細(xì)說明:C++寫的DTMF算法,內(nèi)含一個pcm數(shù)據(jù)文件,讀入文件并分析按鍵-c writes the DTMF algorithm, contains a pcm data file, the read-in document and the analysis pressed key。文件列表: DTMF ....\DTMF.cpp ....\DTMF.