K.
 
Download the free HD-TUNE and do a surface check of the drive you use for audio with it.
if it's a SSD they fail in the most peculiar ways. Today's off the shelf mechanical disks are crap.
Defrag the drive you use for audio with the free defraggler.
 

Thanks Klaus... I'll try that option as well and let you know how it goes.  My old Cakewalk UA-25EX interface seems to be running stable, no matter what the settings are... it has a more recent Windows 10 updated driver.
 
Mark

Hi Bitman,
 
I am recording to a SSD drive... Samsung 950 Pro.  I use my spinner drive only to store samples.  Windows 10 is running off a separate SSD drive.  I heard that it is not safe to defrag a SSD drive???
 
Mark

ryecatchermark
I heard that it is not safe to defrag a SSD drive???

 
It's pointless. Fragmentation doesn't affect access speed on a SSD like it does on a spinning platter.
 

ryecatchermark
I heard that it is not safe to defrag a SSD drive???

Not actually unsafe unless the disk is nearing the "wear out point". I have seen stuff claiming Windows does defrag an SSD once a month if system restore is switched on, but everything else I've seen says Windows doesn't automatically defrag an SSD.

Whether you can defrag an SSD "manually" from a command prompt I don't know. Never tried it and not going to. As SuperG says thanks to how an SSD (and the TRIM function) work fragmentation basically isn't an issue. If you think it might be worth a try copying all the data from the SSD to another drive, fast-formating the SSD then copying the data back should achieve pretty much the same thing without the lots of write operations defraggers use as they shuffle the bits around.

Checking to make sure I understand correctly but..
 
Are the WAV files themselves corrupted? (i.e. same issues when played with something like the Windows Groove Music / Media Player or Audacity?)
 
Or just the playback in Sonar? 

tlw

ryecatchermark
I heard that it is not safe to defrag a SSD drive???

Not actually unsafe unless the disk is nearing the "wear out point". I have seen stuff claiming Windows does defrag an SSD once a month if system restore is switched on, but everything else I've seen says Windows doesn't automatically defrag an SSD.

Whether you can defrag an SSD "manually" from a command prompt I don't know. Never tried it and not going to. As SuperG says thanks to how an SSD (and the TRIM function) work fragmentation basically isn't an issue. If you think it might be worth a try copying all the data from the SSD to another drive, fast-formating the SSD then copying the data back should achieve pretty much the same thing without the lots of write operations defraggers use as they shuffle the bits around.

Fragmentation is not a concept that is actually relevant in the realm of SSD's.
 
By comparison, in traditional spinning HDD's, the read/write heads have to seek out the positions of the data on the  physical spinning disk platter to do their thing.  Overall, this time adds up, and contributes to the physical limits on HDD data throughput.
 
For the SSD's, it takes nanoseconds to grab the fragments, so it becomes a non-issue

Hi Jackson,
 
For me, I get random crackles/static when recording a track after first starting up Sonar... after I restart Sonar the problem goes away.  The crackles are recorded with the audio into the WAV file (I open the file in Sound Forge and it is there).  The WAV file itself is not "corrupt" because it still opens... it just sounds bad.  So it isn't just a playback in Sonar issue.  Hope that makes sense.  Again, this is only happening with my MOTU 828x interface... not with a Cakewalk UA-25EX.  The MOTU 828x seems to work perfectly with other apps like Harrison MixBus.
 
Thanks,
Mark

it's a strange world. I can repro that when I do NOT enable MMCSS in Sonar, playback does NOT glitch; if I turn it back on, I get at least one serious almost buzz like glitch per song playback (different place everytime, independent of buffers and other settings)

I have an MOTU Ultralite AVB. I've had playback glitches that are random as long as I've had it for 1.5 years. I haven't found anything that improves it or makes it worse. It random, doesn't matter if I have 1 audio track and 1 midi track or many with lots of FX.
 
Can you tell me what MMCSS is? I'd certainly like to try it. MOTU has been horrible about addressing this. When I talk to them them seem like they're more into Mac and Logic and don't;' have a clue about why I've having this problem and that I'm the only one who has this happen. I gave up dealing with their lame support on this issue.
 
I can't recall it ever happening while recording, just on playback. Sometimes I used to get a loud distorted tone like a ring modulator. i rarely get that anymore. When it would happen the audio would be totally messed up until I opened Preferences and changed the AVB settings slightly or many times I wouldn't change anything and it would be fixed.
 
UI love the features and routing with the AVB they're ingenious and very flexible (although confusing), so I've just put up with the playback problem, but would love to get your feedback on it.