如何使用Python在我的声卡上播放FM解调信号
[英]How to play an FM demodulated signal on my sound card in Python
问题描述
I have an array that has an FM demodulated audio signal. 
我有一个具有FM解调音频信号的阵列。 I want to play this array on the sound card. 我想在声卡上播放此阵列。
What should I do? 我该怎么办？
2 个解决方案
解决方案1
0 2013-12-10 21:47:14
You can start with this link: https://wiki.python.org/moin/PythonInMusic 您可以从以下链接开始： https : //wiki.python.org/moin/PythonInMusic
The section on Audio Programming frameworks and Playing and Creating Sound might be of interest to you 您可能会对“ Audio Programming frameworks以及Playing and Creating Sound部分感兴趣
解决方案2
0 2013-12-10 22:29:01
Take a look at this pygame project: 看一下这个pygame项目：
http://www.pygame.org/project-pitch+perfect-1689-2941.html http://www.pygame.org/project-pitch+perfect-1689-2941.html
Play musical notes on an object resembling a pitch pipe in real time
Download link: http://code.google.com/p/pitch-perfect/ 下载链接： http : //code.google.com/p/pitch-perfect/
In the source, they build a numpy array with a tone (eg sine wave, square wave etc) and send it to the SDL mixer. 在源代码中，他们构建一个带有音调的numpy数组（例如正弦波，方波等），并将其发送到SDL混合器。 At a cursory glance, I think it comes down to this line (in generate.py GenerateTone(shape='sine', freq=440.0, vol=1.0) ): 粗略地看一下，我认为它可以归结为这一行（在generate.py GenerateTone(shape='sine', freq=440.0, vol=1.0) ）：
snd_ary = ary * vol * 127.0
return pg.sndarray.make_sound(snd_ary.astype(np.uint8) + 128)
It looks like this converts an array to a pygame sound. 看起来这将数组转换为pygame声音。
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