Re: [linux-audio-user] recording bats?

This might be an interesting starting point: http://www.scielo.br/scielo.php?pid=S0001-37652004000200040&script=sci_… Chris is correct that the sound acquisition equipment must be able to register the ultrasonic frequencies before the A/D converter can do much about it. I would assume that any Linux audio software capable of recording at 96 KHz, along with a 96 KHz sound card [the model mentioned in the above article records at 16 bit, BTW] would work just fine with an ultrasonic receiver. I would recommend posting to the Phonography list [it's a Yahoo group, unfortunately], as this is a bunch of folks dedicated to nature/field/environmental sound recording. Chris Cannam wrote: >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?