forked from auracaster/pyalsaaudio
5c2a006553
Converted documentation to Sphinx. Added playwav.py git-svn-id: svn://svn.code.sf.net/p/pyalsaaudio/code/trunk@25 ec2f30ec-7544-0410-870e-f70ca00c83f0
37 lines
1.0 KiB
Python
37 lines
1.0 KiB
Python
## playbacktest.py
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##
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## This is an example of a simple sound playback script.
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##
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## The script opens an ALSA pcm for sound playback. Set
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## various attributes of the device. It then reads data
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## from stdin and writes it to the device.
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##
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## To test it out do the following:
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## python recordtest.py > out.raw # talk to the microphone
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## python playbacktest.py < out.raw
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##
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## If you have Gnome, you could also just test by doing something like:
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## python playbacktest.py < /usr/share/sounds/gnibbles/laughter.wav
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import alsaaudio
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import sys
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import time
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# Open the device in playback mode.
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out = alsaaudio.PCM(alsaaudio.PCM_PLAYBACK)
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# Set attributes: Mono, 8000 Hz, 16 bit little endian frames
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out.setchannels(1)
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out.setrate(8000)
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out.setformat(alsaaudio.PCM_FORMAT_S16_LE)
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# The period size controls the internal number of frames per period.
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# The significance of this parameter is documented in the ALSA api.
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out.setperiodsize(160)
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loops = 10000
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while loops > 0:
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loops -= 1
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# Read data from stdin
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data = sys.stdin.read(320)
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out.write(data)
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