5 Feb
2009
5 Feb
'09
9:17 a.m.
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" <ivalladt(a)gmail.com>
To: <microsound(a)hyperreal.org>rg>; <microsound(a)microsound.org>rg>;
<linux-audio-user(a)lists.linuxaudio.org>rg>;
<linux-audio-dev(a)lists.linuxaudio.org>
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/
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