[juzmister]

Hi,
my Storm doesn't like to play with my Macbook Pro, the Storm doesn't resample (reduces jitter), but instead there are artifacts all over the place. Can anyone recommend an External transport with an accurate clock?
Justin

 

[J-Pak]

Apogee Big Ben:
http://www.apogeedigital.com/products/bigben.php

 

[Wodgy]

I don't think it's an accurate clock you're looking for. Regardless of whether your DAC's receiver IC attempts to derive a clock from the incoming signal or impose a clock on the signal, the problem you're describing is an inability to lock. Most likely the analog PLL components of your DAC are out of spec.

 

[juzmister]

The lock light comes on, on the front of the DAC. It sounded fine with a DVD player, artifacts pop up when I use my laptop...

 

[juzmister]

I turned on Kernal Streaming, put it on 16bits and the artifacts have gone...Weird...But, this DAC sounds great!

 

[dvse]

Quote:

Originally Posted by Wodgy /img/forum/go_quote.gif I don't think it's an accurate clock you're looking for. Regardless of whether your DAC's receiver IC attempts to derive a clock from the incoming signal or impose a clock on the signal, the problem you're describing is an inability to lock. Most likely the analog PLL components of your DAC are out of spec.

I think the DAC has a very similar circuit to this - the receiver is slaved to the onboard clock.

http://pc.watch.impress.co.jp/docs/2.../nidac_ah7.jpg


So its "reclocking" will definitely suffer if the source and local clocks are drifting too quickly in respect to each other - there will be a lot of repeated or dropped samples.