DAC sampling rates


What is the benefit of a soundcard or DAC that supports 24 bit/ 96 or 192 kHz? Is it future-proofing? Will my computer (or my next computer) be able to read SACD or DVD-A? I believe that there are some formats ( FLAC, APE) that support these higher rates but I haven't yet seen a Mac compatible player for these formats. Also, am I correct that computer based DAC is a more generic/ less specific type of device than an audio based device? I ask this because I understand that audio DAC's are for the most part only 'redbook.' THANK YOU.
mctuff
Most DACs in the last 10 years support multiply frequency and higher bit rate. It depends on the receiver/implementation whether it works or not.

A PC computer will be able to read DVD-A but not SACD with correct sound card/SW. I think you need a SB Augidy 2 sound card. Nothing read SACd yet unless you decide to write the SW yourself.

Some sound card supports up-sampling or higher bit processing, whether or not this helps is up to debate. IMHO, a good sounding DAC combine with low noise floor environement and decent output stage is much more important than a 24/96 DAC.
One application that does work, and quite well, is recording live concerts directly to a laptop. The mics, preferably something like a vintage Neumann KM54 or AKG c61, go into a quality microphone preamp/Analogue>Digital Converter into the laptop. Grace makes a lovely portable unit with coaxial and AES/EBU outputs. These recordings can be played back from the computer directly into a home DAC with 24/96khz capability.

You should really hear something like this recorded with a band that support quality audience taping. For those interested the best place to start is:

www.etree.org

for a list of artists/bands that support internet trading/downloads of quality NON compressed digital recordings try:

www.archive.org

You can use up all those old CDRs laying about now.