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A comment on Voice Viewer.

Re:Voice Viewer by rorydh on Saturday August 09, 2014 @01:56PM (#8157503)
Anyone know any mac or linux equivalents? Would love to play with this.

Even better: First person to make a javascript version wins!

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Re:Voice Viewer by nullz on Saturday August 09, 2014 @03:28PM (#8157800)
If I were to throw a js one together, I would use these as a starting point:

[0]: http://web-apprentice-demo.craic.com/tutorials?tutorial=33&d...

[1]: https://webaudiodemos.appspot.com/input/index.html

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Re:Voice Viewer by bjackman on Saturday August 09, 2014 @03:15PM (#8157764)
As per my other comment - Audacity can do this. The representation is called a spectrogram.

Edit: Oh and here's a JavaScript one. Haven't tried it as I don't have a microphone. https://github.com/sebleier/spectrogram.js/tree/master

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Re:Voice Viewer by lozf on Saturday August 09, 2014 @04:01PM (#8157872)
'Spek'[0] is a nice free, lightweight, open source & cross platform Spectrum Analyser.

[0] http://spek.cc/

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Re:Voice Viewer by robhack on Saturday August 09, 2014 @04:16PM (#8157899)
I don't think it's really an equivalent tool. As I understood, the main point is the real-time analysis of the microphone input. Spek seems to only analyze a « static » sound file (same for SoX and Audacity if I'm correct).
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Re:Voice Viewer by lozf on Sunday August 10, 2014 @07:44PM (#8161219)
Oh thanks, I'd missed the "live" part.
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