On 4/26/07, Fons Adriaensen <fons@xxxxxxxxxxxxxxx> wrote:
The volume of a balloon bursting is still quite low compared to a gunshot. For the latter you need a blank pistol, gas pistols don't produce such a loud "bang". One other alternative to consider is to take along a portable radio or some such and use that as the speaker. Al it needs is a line input to connect to your computer. There are also small portable active speakers normally used with ipods and the like. You don't need a big speaker as the frequency response can be equalised later (Aliki will soon have this built-in). I'm pretty sure that even a small speaker with little power will give better results than any other method - just make the sweep long enough to compensate for the low level. Another trick to make life 'on the road' easier is that you do not need Aliki during the measurement. Export the first channel (F) of the sweep file, play it back with any player and record with any recording app. Back home convert the recorded WAV file into an .ald and put that in the 'capture' directory. I've a little app to do the conversion.
I'm guessing that the sweep is much easier and maybe more accurate than the traditional gunshot (with which it maybe harder to get right, a real dirac being impossible to physically reproduce). What do you think ? Am I getting this wrong ? __________________ Marc-Olivier Barre, Markinoko. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user
