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From: Nick Cash <nick.cash@npcinternational.com>
To: Wanderer <wanderer@dialup4less.com>, "python-list@python.org" <python-list@python.org>
Subject: RE: Numpy combine channels
Thread-Topic: Numpy combine channels
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Date: Mon, 10 Sep 2012 19:50:09 +0000
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Xref: csiph.com comp.lang.python:28847

> I have an array generated by audiolab of left and right stereo
> channels. It looks like [[1,1],[1,2],[2,3]]. I would like to combine
> the left and right channels to get an array [2,3,5]. Is there a numpy
> command to do that?

You may be over-thinking this, and numpy might not be necessary.

A simple solution would be just a quick list comprehension:

stereo_array =3D [[1, 1], [1, 2], [2, 3]]
mono_array =3D [l+r for (l, r) in stereo_array]

Thanks,
Nick Cash