naturerecordists
[Top] [All Lists]

Re: New -Need advice

Subject: Re: New -Need advice
From: Gianni Pavan <>
Date: Thu, 29 May 2003 13:15:04 +0200
just few notes about transferring DAT recordings to a PC...

Many sound boards and external audio devices (USB, FireWire) have digital 
IO capabilities to transfer a digital recording to a file.

Though, it is important to carefully verify the digital I/O capabilities of 
the board you use: some devices - even expensive - don't perform direct 
digital transfer of data but they do perform a real-time sampling rate 
conversion (SRC). This might be sometimes useful, for example to downsample 
to 44.1kHz a 48kHz DAT recording for CD mastering purposes. Unfortunately, 
in these devices, sample rate conversion may occur even if transferring a 
48kHz DAT recording to a 48kHz sound file!! This unnecessary data 
conversion introduces artifacts that in most cases are not relevant, though 
it is preferable to avoid them. To preserve the quality of the original 
data the sound boards should lock on the incoming sample rate to transfer 
samples to the PC as they arrive, without any sample rate conversion.
Often sound boards' documentation does not provide information about this 
feature and only an accurate test can show if SRC occurs or not.

To find cheap cables for digital IO with SONY D7-D8 and maybe others, I 
suggest to visit
http://www.core-sound.com


Gianni
--------------------------------------------------------------
Gianni Pavan
Email 
Centro Interdisciplinare di Bioacustica e Ricerche Ambientali
Universita' degli Studi di Pavia
Via Taramelli 24, 27100 PAVIA, ITALIA
Tel/Fax   +39-0382-525234
Web       http://www.unipv.it/cibra



________________________________________________________________________
________________________________________________________________________

<Prev in Thread] Current Thread [Next in Thread>
  • Re: New -Need advice, Gianni Pavan <=
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU