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pyalsaaudio · PyPI
https://pypi.org/project/pyalsaaudio/
pyalsaaudio 0.9.0 pip install pyalsaaudio Copy PIP instructions. Latest version. Released: Jul 13, 2020 ALSA bindings. Navigation. Project description Release history Download files Project links. Homepage Statistics. View statistics for this project via Libraries ...
python - Recording in stereo with pyalsaaudio - Stack …
https://stackoverflow.com/questions/21054249/recording-in-stereo-with-pyalsaaudio
surround71:CARD=PCH,DEV=0 HDA Intel PCH, ALC270 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers. dmix:CARD=PCH,DEV=0 HDA Intel PCH, ALC270 Analog Direct sample mixing device. dsnoop:CARD=PCH,DEV=0 HDA Intel PCH, ALC270 Analog Direct sample snooping device.
GitHub - larsimmisch/pyalsaaudio: ALSA wrappers for …
https://github.com/larsimmisch/pyalsaaudio/
To install pyalsaaudio via pip (or easy_install): $ pip install 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.
Switch from pyalsaaudio to pyaudio · Issue #45 · alexa-pi ...
https://github.com/alexa-pi/AlexaPi/issues/45
@renekliment NumPy is optional. More the Python and system libraries for CFFI and their dependencies. Also seemed like you need to cast the input before pocketsphinx can handle it. But only gave them both a very short test drive to compare them a bit. Regarding pyalsaaudio: Not atm. Only had a short look at their API till now.
pyalsaaudio 0.9.0 on PyPI - Libraries.io
https://libraries.io/pypi/pyalsaaudio
To install pyalsaaudio via pip (or easy_install): $ pip install 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.
numpy - going from signed PCM_FORMAT_S16_LE to …
https://stackoverflow.com/questions/14513775/going-from-signed-pcm-format-s16-le-to-floating-point-number-in-python
According to this, PCM_FORMAT_S16_LE is Signed 16 bit samples for each channel (Little Endian byte order).When you use numpy.fromstringwithout the dtype argument, it defaults to float, which is mapped to float64.So your 1000 samples of 16 bits get converted into only 250 samples of 64 bits. What I think you should do is: aaa = numpy.fromstring(data, …
python - Plot real-time FFT using matplotlib - Signal ...
https://dsp.stackexchange.com/questions/15625/plot-real-time-fft-using-matplotlib
2) The x axis range is the argument to audio.setperiodsize(). In this case, it is 1000. From the pyalsaaudio documentation, "When the hardware processes data this is done in chunks of frames. The time interval between each processing (A/D or D/A conversion) is known as the period". Hence period is something to do with the time domain.
numpy · PyPI
https://pypi.org/project/numpy/
Project description. Besides its obvious scientific uses, NumPy can also be used as an efficient multi-dimensional container of generic data. Arbitrary data-types can be defined. This allows NumPy to seamlessly and speedily integrate with a wide variety of databases. All NumPy wheels distributed on PyPI are BSD licensed.
NumPy Tutorial - W3Schools
https://www.w3schools.com/python/numpy/default.asp
NumPy is a Python library. NumPy is used for working with arrays. NumPy is short for "Numerical Python". Learning by Reading. We have created 43 tutorial pages for you to learn more about NumPy. Starting with a basic introduction and ends up with creating and plotting random data sets, and working with NumPy functions:
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