Home DVD-Audiobahn

New DVD-Audio music releases and talk about the latest players.

Found it.

195.86.126.19

Found also another article illustrating the problem.

It may be the cause why your samples are clipping.

It can be caused by the dac running out of 'headroom' because the oversampled data from the DF is outside the da converter range or the data is clipped in the DF because the headroom in the DF itself isn't sufficent. (I was referring to the latter)

The analog circuits behind the dac are less likely to cause this trouble. But again this depends on sufficent power rail voltage for the analog circuit. I have seen players with power rails at +/- 8 Volts which leaves not much headroom...

It's possible the clipped waves can be caused in your player.
However your example where the clipped signal level is below a similar signal at a higher level but without clipping contradicts this.

What you can do to gain more insight is to record the redbooks spdif out and look if there are signs of clipping similar to the captured wav from the redbook. Look for evidence of clipping below the maximum signal level. If it doesn't clip in the digital output signal then the clipping is caused by your player.

This is a design problem and not a flaw in a format.
(PCM is at an advantage because overflow can be dealt with by having sufficent headroom in processing bits. DSD can't so that's probably why the max out at -6dB)

Note that the problem is more likely to occur where high frequencies are at hot levels.

A hot testdisc (cd and dvda) would be a great tool to check a player/dac for this trouble before actual purchase.
If it shows clipping it's just a bad player.

It shows once more that any conclusions about dynamic range of this particular dsd and pcm transfer are on thin ice.
It's likely that the difference is caused in your player.

Frank


This post is made possible by the generous support of people like you and our sponsors:
  Schiit Audio  


Follow Ups Full Thread
Follow Ups


You can not post to an archived thread.