I have experienced a few times now after a track has finished and other started, that sometimes something in the dac or upsampler doesn’t quite work, what you get is the track playing, but sounding horrible. This can vary from just a bit, to completely distorted.
I have to go into the settings on mosaic and switch the upsampler output rate to another setting, this brings it back and then i can put it back to my normal DSD x2.
Switching maps over from my normal 1, to 2 or 3 doesn’t change it, or the filter on the dac, so it looks more of an upsampler issue? Anyone else have this problem.
The first time it happened to me was at the maverick show last year, and I put it down to just being moved, etc. But I have since had it happen a few times since, and just lately more often.
This is something that I haven’t come across before. However it seems to me that tracing the cause of the issue may require more extensive knowledge. For example does it occur with all types of source or only some, if the latter, with which does it happen with? Are the consecutive tracks with the issue both of the same ample rate or do they vary etc.?
As I mentioned in relation to another query a few days ago, a forum like this may not be the best vehicle for detailed investigation. So ( as you may well predict being a regular) I suspect that a chat with @Phil may be the best strategy.
It’s not really a problem at the moment as its still a rare occurrence. It probably is when a different track is played from a playlist with many different sample rates. It’s like not everything has latched on correctly and only part of the single is being processed.
Just thought I would mention it as i sit here with my headphones on, listening to you know what.
Pete’s reply is good … very relevant questions so let me add …
Is it repeatable?
How long does it last for?
If you get it happen at the changeover of a track and you go back and play those tracks again then does it give the same “sound”?
Is it always the same channel?
Is it “noise” or is it recognisable as audio?
Speculating at this point is a bit of a finger in the air thing but if it’s not something that’s repeatable in that way but it is something that happens on a change of sample rate then it could be something like a muting relay in the DAC perhaps but really we need to dig into this to nail it down…
No it’s not repeatable, or if it is i haven’t found it.
It will continue to play as it is, but I sort it when it does it, and not let it play to the end.
It’s still music, but the distortion isn’t always the same, it can be slight or very bad, as in you could miss it if say you was busy doing something and the music was just played in the background, to you can’t stop it fast enough as its that bad, and sounds like it’s going to damage something.
Both channels I would say.
But it only happens very now and again, but I feel its happening more frequently, but maybe it’s the music I am playing, but its not the same track, and I think it’s always from streaming (qobuz)
OK … so if it’s sporadic then can I ask you to grab a set of logs from your Upsampler when it happens next (if you don’t know how, please see here) BEFORE you do anything else to fix it - ideally whilst it is still playing.
Then bounce them over to be at [email protected] and we’ll get looking into it.
I will do my best. So you don’t want me to do it say tonight? As will it have lost the log from yesterday? I put my stack into standby from the remote after I have finished listening.
It really needs to be grabbed at the time of the problem happening or as soon after as possible … in standby much of the unit still remains alive so yesterdays events will likely have long since gone from the logs.
I experienced exactly the same thing with my Vivaldi sac/Upsampler, and solved it the same way.
However, the first years of using it, I always let the system on, never stand by mode. Then, I changed my process. Always stand by mode when not using the system. I got the problem, after a while…Now it is always on, never use the stand by mode anymore, and the sound problem never occurred since.
Not sure it is the solution, but at least until now it works ! But when this kind of “low cost radio sound” happened, I was wondering whether or not I had some hearing issues, I am 62…But no, it wasn’t my hears…But as you said, no idea how to repeat the problem ?!
