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
<<attachment: a.png>>
_______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
