Re: Recording equipment for student
Gianni Pavan <[EMAIL PROTECTED]> wrote: > > Edirol R1 is limited to 44.1 kHz sampling; R-1 is discontinued, and most stores seem to run out of R-09... until they get next shipment. > > Other cheap solid state recorders go up to 96 kHz sampling, but the > > frequency response in the upper range must be verified. MAudio > > MT2496 is okay for frequency range but a bit noisy. Do you or anyone know the playback response of Micro Track 24/96 is? (Say, generate a square pulse of 20 microsec duration and save it in MATLAB at fs=96 kHz, play it with MT2496, and see the response of the playback analog filter with a digital storage scope or something.) Thanks! Ryuji (Riuyi) [EMAIL PROTECTED]
Re: Recording equipment for student
Edirol R1 is limited to 44.1 kHz sampling; the same limit applies to all minidisc (MD) recorders. Other cheap solid state recorders go up to 96 kHz sampling, but the frequency response in the upper range must be verified. MAudio MT2496 is okay for frequency range but a bit noisy (high output mics are required to overcome this problem) and with a poor phantom powering limited to 32 V (many mics work ok, others may not). To get at least 80 kHz bandwidth, you need 192 kHz sampling, which is available in a few portable recorders, but response is not necessarily extended as one might want: Sound Devices 722 (the response falls smoothly above 60 kHz, -6 dB at 80 kHz, -10 dB at 92 kHz) Fostex FR2 (flat up to 92 kHz) Tascam HDP2 (Joe Olson reported recently that its response falls down to -20 at 80 kHz) Another viable solution is to use a laptop with a suitable audio interface. To get 90 kHz bandwidth I could suggest the MOTU Traveler (4 mic in with P48, 4 line in, low noise, FireWire interface, external DC powering) that costs less than $1000. To learn more about frequency response and anti-aliasing features (that affect the usable bandwidth) of some recorders and audio interfaces visit our web page at http://www.unipv.it/cibra/res_techtest_uk.html Gianni [EMAIL PROTECTED] At 05.44 17/06/2006, you wrote: > I am curious if anyone could recommend some field recording equipment, > digital disc recorder, for an individual interested in bioacoustics? The > Edirol R-1 model? I am looking for something affordable for a student, > certainly less than $1000. A sampling rate allowing for recording of > ultrasound is desirable. I have experience field recording with a minidisc > recorder for non-scientific purposes, and I am getting ready to pursue some > undergraduate research in bioacoustics. > > Thanks, > David > [EMAIL PROTECTED] > > > > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.1.394 / Virus Database: 268.9.0/366 - Release Date: 15/06/2006 -- Gianni Pavan Email [EMAIL PROTECTED] Centro Interdisciplinare di Bioacustica e Ricerche Ambientali Universita' degli Studi di Pavia Via Taramelli 24, 27100 PAVIA, ITALIA Tel +39-0382-987874 Fax+39-02-700-32921 Web http://www.unipv.it/cibra -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.1.394 / Virus Database: 268.9.2/370 - Release Date: 20/06/2006
RE: Recording equipment for student
Dear Pawel, The frequency response for the MicroTrack 24/96 is known. Both Gianni Pavan and I have posted it on this list. Please see http://www.unipv.it/cibra/res_techtest_uk.html and www.cetaceanresearch.com/M-Audio_MicroTrack_24-96_Freq_Response.pdf for details. Joe Olson ~~~ Joseph R. Olson Cetacean Research Technology PO Box 70186 Seattle, WA 98127 Sales: 206-297-1310 877-824-5432 (outside the Seattle local calling area) Customer Support: 206-973-7979 United Kingdom: 020-7193-7965 FAX: 206-784-0557 Mobile: 206-650-8676 [EMAIL PROTECTED] www.cetaceanresearch.com Cetacean Research Technology is a strategic partner of: Sound Technology, Inc. Spectra Group - Signal Analysis Division and Sensor Technology, Ltd. Marine Mammal and Bioacoustics Division > > -Original Message- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Pawel Kusmierek > > Sent: Monday, 19 June 2006 3:55 PM > > To: BIOACOUSTICS-L@cornell.edu > > Subject: Re: Recording equipment for student > > > > AFAIR R-1 does not allow ultrasonic recording. > > > > R-4 does, but it's much more expensive. > > > > The new Tascam HD-P2 records at 24/96 kHz but it's quite > > expensive, and despite > > 96 kHz converters, the published frequency response is not > > very impressive. > > > > Another option is Marantz PMD-671, though some people have > > complained about noisy mic preamps. > > > > M-Audio MicroTrack 2496 is cheap and records at 96 kHz, but > > the frequency response in unknown. M-Audio did not publish > > it. Also, be advised that this unit suffered from numerous > > flaws - Google for it. Some might have been corrected by > > software updates, others most certainly not: like substandard > > Phantom Power voltage. > > > > Pawel > > [EMAIL PROTECTED] > > > > > > David Flores wrote: >>> > > > I am curious if anyone could recommend some field recording >>> > > > equipment, digital disc recorder, for an individual interested in >>> > > > bioacoustics? The Edirol R-1 model? I am looking for something >>> > > > affordable for a student, certainly less than $1000. A > > sampling rate >>> > > > allowing for recording of ultrasound is desirable. I have > > experience >>> > > > field recording with a minidisc recorder for non-scientific >>> > > > purposes, and I am getting ready to pursue some > > undergraduate research in bioacoustics. >>> > > > >>> > > > Thanks, >>> > > > David >>> > > > [EMAIL PROTECTED] >>> > > > > > > > > > -- Pawel Kusmierek PhD > > Department of Physiology and Biophysics > > Georgetown University Medical Center > > The Research Building WP23 > > 3970 Reservoir Road NW > > Washington, DC 20007 > > phone: +1 202 687-8851 > > > > > >
Re: Recording equipment for student
AFAIR R-1 does not allow ultrasonic recording. R-4 does, but it's much more expensive. The new Tascam HD-P2 records at 24/96 kHz but it's quite expensive, and despite 96 kHz converters, the published frequency response is not very impressive. Another option is Marantz PMD-671, though some people have complained about noisy mic preamps. M-Audio MicroTrack 2496 is cheap and records at 96 kHz, but the frequency response in unknown. M-Audio did not publish it. Also, be advised that this unit suffered from numerous flaws - Google for it. Some might have been corrected by software updates, others most certainly not: like substandard Phantom Power voltage. Pawel [EMAIL PROTECTED] David Flores wrote: > > I am curious if anyone could recommend some field recording equipment, > > digital disc recorder, for an individual interested in bioacoustics? The > > Edirol R-1 model? I am looking for something affordable for a student, > > certainly less than $1000. A sampling rate allowing for recording of > > ultrasound is desirable. I have experience field recording with a minidisc > > recorder for non-scientific purposes, and I am getting ready to pursue > > some undergraduate research in bioacoustics. > > > > Thanks, > > David > > [EMAIL PROTECTED] > > -- Pawel Kusmierek PhD Department of Physiology and Biophysics Georgetown University Medical Center The Research Building WP23 3970 Reservoir Road NW Washington, DC 20007 phone: +1 202 687-8851
