Anyone running OK at 192k?

David Else · 07-29-2018, 01:37 PM

My Scarlett 6i6 says it can do 192k, and the option is there in Reaper, but when I select it no sound comes out.

It's not that big a deal, but I would be interested to know if it is a Reaper bug that could be fixed, or maybe a driver problem or something else.

Don't ask why I would want 192k?

OK... The u-he pro 5 emulation can run at that rate with zero oversampling with no overhead as the oversampling switches off. The plugin creator said on gearslutz that was technically the best possible sound it could have (but he did not think people would hear it)... Of course I now want to play it at that rate... and the latency would be insanely low if my PC could handle it.

sub26nico · 07-29-2018, 02:36 PM

I've tried at 192k, with an Steinberg UR44 with LibraZiK distro (http://librazik.tuxfamily.org/base-site-LZK/english.php),
Reaper native linux 5.91 and no problems, it works fine.
I put a synth from UHE TyrellN6 (I haven't repro 5 installed on this machine)
in a track, the sound is ok without any dropout or xruns.

JamesPeters · 07-29-2018, 02:45 PM

It may not be worthwhile running your audio device at that high a sample rate. Lots of inexpensive audio devices have significant IMD at the higher rates. Try this test:

https://xiph.org/~xiphmont/demo/neil-young.html#toc_1ch

If you don't hear the ugliness in the samples when you're testing at higher sample rates (be sure to set your audio device to the appropriate sample device in Reaper so it doesn't resample the files), you can use whatever higher sample rate you want and know it's not going to be ironically sabotaging your efforts for higher fidelity.

Otherwise, you might as well stick to a sample rate your audio system can handle properly.

sub26nico · 07-29-2018, 02:48 PM

It's works on another pc with same distro and an Scarlett 2i2
(2nd gen) but the processor is old and I have to put the buffer
to 2048. At 1024 lot of glitches and xruns with Repro 5.

David Else · 07-30-2018, 02:40 AM

Thanks for the input guys!

I tried again, and I just get so sound at 192k, does not matter what buffer setting. I have been through many kernel updates and the situation did not change.

Not to worry, the u-he pro 5 is running at blocksize 64 at 96k with not a trace of x-runs with a normal kernel and RT priority 40, so it is happy days

07-29-2018, 01:37 PM	#1
David Else Human being with feelings Join Date: Mar 2012 Posts: 610	Anyone running OK at 192k? My Scarlett 6i6 says it can do 192k, and the option is there in Reaper, but when I select it no sound comes out. It's not that big a deal, but I would be interested to know if it is a Reaper bug that could be fixed, or maybe a driver problem or something else. Don't ask why I would want 192k? OK... The u-he pro 5 emulation can run at that rate with zero oversampling with no overhead as the oversampling switches off. The plugin creator said on gearslutz that was technically the best possible sound it could have (but he did not think people would hear it)... Of course I now want to play it at that rate... and the latency would be insanely low if my PC could handle it. __________________ ----------> Debian Linux Distribution = Computing Joy & Freedom <----------

07-29-2018, 02:36 PM	#2
sub26nico Human being with feelings Join Date: May 2014 Location: France Posts: 259	it works here I've tried at 192k, with an Steinberg UR44 with LibraZiK distro (http://librazik.tuxfamily.org/base-site-LZK/english.php), Reaper native linux 5.91 and no problems, it works fine. I put a synth from UHE TyrellN6 (I haven't repro 5 installed on this machine) in a track, the sound is ok without any dropout or xruns.

07-29-2018, 02:45 PM	#3
JamesPeters Human being with feelings Join Date: Aug 2011 Location: Near a big lake Posts: 3,943	It may not be worthwhile running your audio device at that high a sample rate. Lots of inexpensive audio devices have significant IMD at the higher rates. Try this test: https://xiph.org/~xiphmont/demo/neil-young.html#toc_1ch If you don't hear the ugliness in the samples when you're testing at higher sample rates (be sure to set your audio device to the appropriate sample device in Reaper so it doesn't resample the files), you can use whatever higher sample rate you want and know it's not going to be ironically sabotaging your efforts for higher fidelity. Otherwise, you might as well stick to a sample rate your audio system can handle properly. Last edited by JamesPeters; 07-29-2018 at 03:30 PM.

07-29-2018, 02:48 PM	#4
sub26nico Human being with feelings Join Date: May 2014 Location: France Posts: 259	Ok too with Scarlett 2i2 It's works on another pc with same distro and an Scarlett 2i2 (2nd gen) but the processor is old and I have to put the buffer to 2048. At 1024 lot of glitches and xruns with Repro 5.

07-30-2018, 02:40 AM	#5
David Else Human being with feelings Join Date: Mar 2012 Posts: 610	Thanks for the input guys! I tried again, and I just get so sound at 192k, does not matter what buffer setting. I have been through many kernel updates and the situation did not change. Not to worry, the u-he pro 5 is running at blocksize 64 at 96k with not a trace of x-runs with a normal kernel and RT priority 40, so it is happy days __________________ ----------> Debian Linux Distribution = Computing Joy & Freedom <----------

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