·詳細(xì)說(shuō)明:Goertzel算法是DTMF信號(hào)檢測(cè)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(hào)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(shuō)明:C++寫(xiě)的DTMF算法,內(nèi)含一個(gè)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.