Re: [SoX-users] Any quick way to get a datapoint list instead of a plot or spectrogram?

[Jesse R. <jr...@co...>]

Hi Doug,

Since nobody has responded with a sox-specific solution, I figured I'd
mention that the seewave package in R can do this. Specifically, the
dfreq() function is worth looking at.

Best,
Jesse Ross


On Thu, Jul 19, 2012 at 1:32 PM, Doug Lee <dg...@dl...> wrote:

> I may have missed this somewhere...
>
> I want to get SoX to give me, instead of a plot, a list of the data
> points from which a plot would be made. The ultimate goal is to
> produce a sound sweep where x becomes real time and y becomes pitch,
> and possibly, z becomes amplitude. The idea here is to produce a
> nonvisual "plot" instead of a visual one.
>
> Of course if there's a way to produce a histogram-type display where x
> is frequency and y is amplitude, as averaged over time, I would want
> the same translation style: x (frequency) would become real time and y
> (amplitude) would become pitch in the resulting sound sweep.
>
> If octave or gnuplot can translate SoX plots into sound, that should
> be good enough. Otherwise I'm sure I could write something (allbeit
> hardware-specific perhaps) that can take, say, a file of lines each
> containing x,y,z points, and make the proposed sound sweep from it.
> Sometimes I might want to examine the raw data points either way though.
>
> --
> Doug Lee                 dg...@dl...                http://www.dlee.org
> SSB BART Group           dou...@ss...
> http://www.ssbbartgroup.com
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> so."
> - Josh Billings, 1818-1885 (in "Solemn Thoughts")
>
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