Can he program? I would suggest then that he should try Python, with scipy/numpy and matplotlib. There are ready-to-go spectrogram functions, but you can also do your FFTs and plot them in any way you like.
In general, you get audio as a RIFF-Wave file, there is a simple interface in scipy to do this. But I suppose you can get RT audio via PyAudio (portaudio bindings) or the alsa python interface. About calibration, I am not sure, but I guess this can be done programmatically. Other solutions: http://www.sonicvisualiser.org/ http://www.speech.kth.se/wavesurfer/ Victor ----- Original Message ----- From: "Ismael Valladolid Torres" <[email protected]> To: <[email protected]>; <[email protected]>; <[email protected]>; <[email protected]> Sent: Thursday, February 05, 2009 12:50 PM Subject: [LAD] Request for open source solution to spectrograms and phasemeasurement > Sorry for the crossposting, but I don't know which list is more > suitable to what I'm asking. > > One friend of mine is looking for a solution based in Linux. I admit I > don't understand fully what he needs. That's why I am asking to you > gurus out there... :) > > He needs something for level measurement of spectrograms, callibrated > as K-14, also for phase measurement. He used [1]a plug-in for Nuendo > in the past, but now he's looking for a netbook devoted only to this > task, and he wants to use an open source solution. > > 1. http://www.nugenaudio.com/visualizer.php > > Any suggestions welcome. > > Cordially, Ismael > -- > Ismael Valladolid Torres http://lamediahostia.blogspot.com/ > <[email protected]> http://www.seomarketingtools.org/ > http://www.linuxav.net/ > t. 0034912519850 > m. 0034609884094 (Yoigo) GnuPG key: DE721AF4 > > Google Talk/Jabber/MSN Messenger: [email protected] > Jaiku/Twitter/Skype/Yahoo!: ivalladt > AIM/ICQ: 264472328 > _______________________________________________ > Linux-audio-dev mailing list > [email protected] > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
