audio visualization on the Ben?
Xiangfu Liu
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?
Hi Jane
I search a little on 'audio waveform image' found this one:
works just fine under Ben Nanonote:
http://linuxwebdev.blogspot.com/2006/03/plot-wav-file-wav2png.html
attach is one png file I created by nanonote.
BTW:
there is one option on sox can direct output png file: 'spectrogram'
http://sox.sourceforge.net/sox.html
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
--plot gnuplot|octave|off
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.
E.g.
sox --plot octave input-file -n highpass 1320 > plot.m
octave plot.m
we also have the 'Gtkguitune' not sure is this one helpful
http://en.qi-hardware.com/wiki/Applications
-------------- next part --------------
A non-text attachment was scrubbed...
Name: a.png
Type: image/png
Size: 12073 bytes
Desc: not available
URL: <http://lists.en.qi-hardware.com/pipermail/discussion/attachments/20120306/68557165/attachment.png>
More information about the discussion
mailing list