On Wed, Apr 06, 2005 at 12:32:20PM +0000, [EMAIL PROTECTED] wrote: > Are there any tools/libraries around which makes it possible to do > something like this? > > 1) Feed an audio signal (f.ex. a sinus wave) into external hardware > > 2) Record the signal returned from the external hardware > > 3) "Compare" the two signals (realtime would be neat, if you know what > latency you have btwn output/input I hope this might be achieved w > Jack) and perform some kind of analysis of what the external hardware > does to the signal (S/N ratio, damping, etc etc).
You may mave a look at JAAA, (JACK and ALSA Audio Analyser). This is a realtime 'technical' (rather than musical) spectrum analyser, designed to make accurate measurements. It will also generate sines and white Gaussian noise. It's at <http://users.skynet.be/solaris/linuxadio> You will also need some small shared libs available from the same place. I'm considering some additional functionality, and if you have any specific requirements I'd be interested to know. I am also working on a Room Impulse Response measurement system using a sine sweep as the stimulus. First release expected in a about two months. -- FA
