Its can be done using root mean square (RMS).
One way to build your own rms function using python is:
def rms( data ):
count = len(data)/2
format = "%dh"%(count)
shorts = struct.unpack( format, data )
sum_squares = 0.0
for sample in shorts:
n = sample * (1.0/32768)
sum_squares += n*n
return math.sqrt( sum_squares / count )
Another choice is use audioop to find rms:
data = stream.read(CHUNK)
rms = audioop.rms(data,2)
Now if do you want you can convert rms
to decibel
scale decibel = 20 * log10(rms)
2018年11月7日 ... 环境需要有包pudub,ffmpeg,pyaudio并下载ffmpeg 放在文件目录中 ... 获取文件 目录下的mp3 wav格式音频. def file_name(file_dir):. L=[] for root ...
data = stream.read(CHUNK) rms = audioop.rms(data,2). Now if do you want you can convert rms to decibel scale decibel = 20 * log10(rms).
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分贝(decibel)是量度两个相同单位之数量比例的计量单位,主要用于度量声音 ... 播放声音,假如你想在python中回放声音,参考pyalsaaudio(linux)或pyaudio。
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We get IDLE session prompt back upon breaking from play loop. You can tailor that your needs. Output: Python 2.7.9 (default, Dec 10 2014, ...
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