Old 09-13-2019, 09:39 AM   #1
Inglev
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Default Strange disk read spike issue

Iím having some weird issues with the latest version of Reaper.

I have a recording project going with around 18 tracks coming in.
When recording on empty space in a project the disk read will show 0 mb/s while the write will read around 2.00 mb/s - all is fine.

When Iím recording on top of already recorded takes (creating a new take) the disk read will show around 2 mb/s (even though ALL tracks are armed for record), and then suddenly spike to a massive 50mb/s for a few seconds, before dropping to 0mb/s. When the spike is happening there a big annoying audio glitch in the recorded material.

Iíve never had this issue before.

Iím on a 2014 MacBook Pro 15Ē retina, running the latest Mojave and latest Reaper version.

Any ideas for a fix?
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Old 09-14-2019, 03:40 AM   #2
Inglev
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Also, I should add, that during playback Iím experiencing media xruns, which Iíve never had before. Iím on a ssd, so I find it hard to believe that the disk itself is the thing causing the issues.
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Old 09-14-2019, 07:08 AM   #3
Justin
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Are you recording to normal .wav files?

What blocksize and samplerate is your audio device using?

Can you make a screenshot of your preferences/buffering page? Also the "advanced disk I/O" window that opens from there?
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Old 09-14-2019, 07:56 AM   #4
Inglev
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Hey Justin.

Im recording to normal .wav files, 24bit.

I normally record at 64 buffer size, but I switched to 512 and used direct monitoring through the Fireface 802 - although it didn't resolve the issue.

Here's the settings:



Attached Images
File Type: jpg Advanced IO.jpg (59.8 KB, 36 views)
File Type: jpg Buffering.jpg (61.2 KB, 36 views)
File Type: jpg Preferences.jpg (59.8 KB, 35 views)
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