Dear all,
here some preliminary info on the performances of the EMU
TrackerPre, a pretty cheap though reliable USB acquisition device able to
run up to 192k with good performances.
The frequency response at 192k is flat up to 84kHz and rolls down 1 dB at
90kHz and 6 dB at Nyquist (96kHz). The a-a filters are steeper than those of
the USBPre2:
INPUT at 0dB ALIAS
100kHz -16dB at 92kHz
102kHz -25dB at 90kHz
104kHz -50dB at 88kHz
112kHz at 80kHz the aliasing components
are not measurable
More accurate tests and graphs will follow on on our website at
http://www.unipv.it/cibra/res_techtest_uk.html
Gianni
--
Presidente
Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
Dipartimento di Biologia Animale
Universita' di Pavia
Via Taramelli 24 - 27100 PAVIA
http://www.unipv.it/cibra
http://mammiferimarini.unipv.it
Phone +39-0382-987874
