python wav频谱分析

Python可以使用频谱分析对.wav音频文件进行处理。频谱分析是语音识别领域中的基本数据处理过程，也为后续的特征分析提供了数据准备。你可以使用Python库中的一些函数和方法进行频谱分析。下面是一个示例Python代码，可以绘制.wav音频文件的频谱图：

import wave
import struct
import numpy
from scipy import *
from pylab import *

def Plot_fft_freq_chart(filename, plot=False):
    wavefile = wave.open(filename, 'r')
    nchannels = wavefile.getnchannels()
    sample_width = wavefile.getsampwidth()
    framerate = wavefile.getframerate()
    numframes = wavefile.getnframes()

    y = numpy.zeros(numframes)
    for i in range(numframes):
        val = wavefile.readframes(1)
        left = val = v

    Fs = framerate
    try:
        data, freqs, bins, im = specgram(y, NFFT=1024, Fs=Fs, noverlap=900)
        mm=data<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
-  *1* [使用Python对音频进行频谱分析](https://blog.csdn.net/jeffrey2010/article/details/77427451)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
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