audio visualization on the Ben?
xiangfu at sharism.cc
Mon Mar 5 22:09:50 EST 2012
On 03/06/2012 03:57 AM, Jane Andreas wrote:
> Hi, I am brainstorming for ideas on how to turn recorded audio on the
> Ben into an image, in the same way that Audacity or other sound
> recorders do only not in real-time. A while back I heard of
> octave-audio, but would that give a similar waveform image? Maybe
> someone knows of a lightweight tool that allows you to view the audio
> that way?
I search a little on 'audio waveform image' found this one:
works just fine under Ben Nanonote:
attach is one png file I created by nanonote.
there is one option on sox can direct output png file: 'spectrogram'
but I didn't make it work under ben nanonote.
also there is another option on 'sox' --plot. I have tested in nanonote. works fine
If not set to off (the default if --plot is not given), run in a
mode that can be used, in conjunction with the gnuplot program
or the GNU Octave program, to assist with the selection and con-
figuration of many of the transfer-function based effects. For
the first given effect that supports the selected plotting pro-
gram, SoX will output commands to plot the effect’s transfer
function, and then exit without actually processing any audio.
sox --plot octave input-file -n highpass 1320 > plot.m
we also have the 'Gtkguitune' not sure is this one helpful
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