Analog-to-Digital Audio:

[Dean S. Messing]

Mikkel L. Ellertson wrote:
>Tim wrote:
>> Patrick O'Callaghan:
>>>> Turntables are also available. Ironically, a lot of these actually
>>>> come with Audacity even though they're marketed for Windows.
>> Mikkel L. Ellertson:
>>> For example:
>>> http://www.geeks.com/details.asp?invtid=3DTTUSB-PB-R&cpc=3DSCH
>> I'd be very surprised if any of those plastic turntables were anything
>> but utter crap.  But then they're aimed at the MP3/iPod users, where
>> audio quality is the least thing on their mind...
>Considering the quality of the analog to digital converter most
>people are going to be using, it probably would not be much better
>using a quality turntable, cartridge, and preamp. The A to D
>converter in the sound cards of most computers is not that great.
>(Good enough for mp3, but that is about it.)

What sound cards (that have Linux drivers) would you recommand for
very high fidelity stereo digitising?  I have two purposes.  One is a new
interest in audio work.

Another is a project in which I need to digitise and analyse two
related analogue waveforms.  Low noise, good linearity, flat
freq. response down to 5 Hz, sampling rate of (at least)
192 Ksamples/sec are my initial specifications.  The flat response is only
a "want".  I can calibrate out any deviations if they are not severe
(like being at -60dB at 5 Hz :-).

Thanks.
Dean