Remember, you have to sample at a rate least twice the highest frequency of interest. The data suggests you need the at least 192 kHz rate to record 96kHz fundamental signal. Plus the special microphone. Howard -----Original Message----- From: linux-audio-user-bounces@xxxxxxxxxxxxxxxxxx [mailto:linux-audio-user-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of Chris Cannam Sent: Monday, November 08, 2004 2:35 PM To: linux-audio-user@xxxxxxxxxxxxxxxxxx Subject: Re: [linux-audio-user] recording bats? On Monday 08 Nov 2004 20:17, Eric Dantan Rzewnicki wrote: > I just had a crazy idea ... Sorry if this is off topic a bit. Does > anyone know what frequency ranges bats use? Would a 96KHz 24bit card > be able to capture anything useful from their sounds? Depends on the bats, but generally yes. Some of them are on the edge of the human hearing range (I used to be able to hear the bats at my parents' house, although my hearing is no longer quite good enough). First Google hit for "frequency range of bats" is a bit less optimistic than I am: http://hypertextbook.com/facts/1998/JuanCancel.shtml Either way, wouldn't the microphone be more of a limiting factor than the soundcard? Chris
