a standalone dac to read usb data?

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tinears

  • Jr. Member
  • Posts: 3
a standalone dac to read usb data?
« on: 28 Aug 2007, 06:48 am »
Hi

Are there any plans for a standalone dac to read a usb thumb drive
data and play music from that?
It would solve, in one fell swoop, the jitter problems with the transport,
spdif protocol, and format issues.

I know a pc can stream data to many usb dacs available, but I would
like one where the dac is the master and the thumb drive a slave.
For starters, it only needs to play the redbook cd .wav format and
perhaps, mp3 as the icing on the cake.

How difficult would this be?
I am an analog/rf guy, but ucontrollers are a new ball game to me, so
pls put up with my ignorance just this while.

cheers

hagtech

Re: a standalone dac to read usb data?
« Reply #1 on: 28 Aug 2007, 06:44 pm »
Quote
any plans for a standalone dac to read a usb thumb drive?

Nah, that would chew up too much development time.  Might be a can of worms, as you now have to define a new user interface.  Does it act like a slimserver?  An ipod?  What sort of display/keyboard/remote is needed?  Sure, it could be a way cool machine, but I think too much for a one-man development team.  That's a lot of investment risk to get a return on.

There are other ways around jitter.  Reclocking properly seems to get a lot of the job done.

jh

ricmon

Re: a standalone dac to read usb data?
« Reply #2 on: 28 Aug 2007, 08:21 pm »
Build your self a pc-music server. Connect it to you dac via spdif and then when you have music on the thumb drive just plug it in and listen.  No extra nothing.  As a matter of fact it sounds like a good way to copy and play music without burning disc.

tinears

  • Jr. Member
  • Posts: 3
Re: a standalone dac to read usb data?
« Reply #3 on: 29 Aug 2007, 02:25 am »
Something like the MP-02X in the website below:

http://www.hum.co.za/wc_players.asp


I bought one of these for use in my car, and thought that since such
things were available for about USD50, it may be possible to do some
high end version with a nice clock and impedance terminations.
The Sigmatel chip itself may not be too high-end, though the
functionality may be available.

cheers