随着科学技术的发展,许多案件利用语音编辑软件对录音资料进行篡改,使得公安机关根据录音资料进行案件侦破构成障碍。文章对可用于数字音频真伪检测的特征进行了梳理和总结,通过信号分析手段,利用ENF、信号量化方式、信道语谱、采样直方图、直流偏移和拼接点分析对语音真实性进行检测。 With the development of science and technology, many cases make use of voice editing software to tamper with the recording materials, making the public security organs form an obstacle to the case detection according to the recording materials. The article combs and summarizes the features that can be used for authenticity detection of digital audio, and uses the methods of signal analysis to detect the authenticity of speech by using ENF, signal quantization, channel spectrum, sample histogram, DC offset and splice point analysis .