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Python Examples of alsaaudio.Mixer

https://www.programcreek.com/python/example/91452/alsaaudio.Mixer

def create_mixer(name): with tempfile.NamedTemporaryFile(mode='w', dir="/tmp", delete=False) as asoundstate: content = ALSA_STATE_FILE.replace("%VOLUME%", name) logging.debug("asoundstate file %s", content) asoundstate.write(content) asoundstate.close() command = "/usr/sbin/alsactl -f {} restore".format( asoundstate.name) logging.debug("runnning …

python - Open audio with callback using ALSA - Stack …

https://stackoverflow.com/questions/28999267/open-audio-with-callback-using-alsa

Is it possible in Python, using ALSA, to access the audio hardware for playback, with a callback function: def audiocallback (): # create some audio and return a buffer of 1024 samples (~23 ms @ 44.1khz) # that is going to be played on the device return buffer openaudio (deviceid=1, type=OUTPUT, freq=44100, buffersize=1024, callback = audiocallback)

Python Examples of alsaaudio.PCM

https://www.programcreek.com/python/example/91453/alsaaudio.PCM

def start(): last = GPIO.input(button) while True: val = GPIO.input(button) GPIO.wait_for_edge(button, GPIO.FALLING) # we wait for the button to be pressed GPIO.output(lights[1], GPIO.HIGH) inp = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NORMAL, device) inp.setchannels(1) inp.setrate(16000) …

GitHub - larsimmisch/pyalsaaudio: ALSA wrappers for …

https://github.com/larsimmisch/pyalsaaudio/

Manual installation. Note: the wrappers need a kernel with ALSA support, and the ALSA library and headers. The installation of these varies from distribution to distribution. On Debian or Ubuntu, make sure to install libasound2-dev.On Arch, install alsa-lib.When in doubt, search your distribution for a package that contains libasound.so and asoundlib.h. ...

Using aubio and alsaaudio with Python | Chris Baume

https://chrisbaume.wordpress.com/2013/02/09/aubio-alsaaudio/

For an up-to-date example, please see demo_alsa.py. Aubio is an audio analysis library which contains implementations of some useful algorithms, including pitch detection. It can be used with Python (through SWIG), but the documentation is very light and there doesn't appear to be any Python-specific instructions.

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