[SciPy-User] Playing numpy array over speakers

[Brian Merchant]

Thanks so much for updating us on what you have found! I am very glad to be
able to have a chance to explore the possible "solutions" you found!

On Tue, Mar 31, 2015 at 9:02 AM, Todd <toddrjen at gmail.com> wrote:

> On Tue, Mar 24, 2015 at 9:39 PM, Todd <toddrjen at gmail.com> wrote:
>
>> Is anyone aware of a well-maintained, simple, cross-platform python
>> package that can play a numpy array as sound over speakers?
>>
>> I am aware of https://wiki.python.org/moin/Audio/.  However, in all the
>> cases there, as far as I can find they either do not support numpy arrays,
>> are not cross-platform, cannot playback sound at all, or are unmaintained.
>> There is also PySoundCard, which would do what I need but also appears to
>> be unmaintained (no release in over a year, and no commits in 5 months, no
>> release with serious bugfixes mentioned in commits).
>>
>
> So in terms of raw waveform playback (as opposed to music note playback),
> I have done some more searching and I think I have found something that
> works.  It is the "audio.io" package (
> https://pypi.python.org/pypi/audio.io/).  It has a recent release (late
> 2014), supports numpy arrays, and is cross-platform through PyAudio.  It is
> just a VERY thin wrapper around PyAudio (less than 100 lines).  However,
> there is no website, no issue tracker, essentially no documentation, and
> has several projects copied into its tarball (including setputools, about,
> and sh).
>
> Here are the reasonably maintained, reasonably relevant alternatives I
> have been able to find:
>
> PyAudio: maintained, cross-platform, doesn't support numpy.  It seems to
> be used as a backend by a lot of other projects.
>
> audiolazy: cross-platform, supports numpy, has not seen a release since
> 2013 but its github repo is still seeing commits so it may have more
> releases in the future.  Uses PyAudio.  Provides a lot of other powerful
> audio-handling and audio-processing capabilities.
>
> PySoundCard: cross-platform, supports numpy, has not seen a release in
> over a year and its github repo has not seen a commit in 5 months, but
> another related project (PySoundFile) has seen commits and releases
> recently.  The only option amongst these that does NOT rely on PyAudio.
>
> pydub: maintained, cross-platform, doesn't appear to support numpy but the
> audio output is undocumented so I can't be sure.  Uses PyAudio or ffmpeg if
> PyAudio is not available.
>
>
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