Helpful ReplyMotorboating (no sound just harsh buzz) on playback/record

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andyjobson85
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2018/10/10 18:11:04 (permalink)

Motorboating (no sound just harsh buzz) on playback/record

Sometimes when starting the transport (either playback or recording) I get what I believe is known as 'motorboating', i.e. there is no sound from the project, just a harsh buzz that persists until I stop and start the transport again. It's maybe 30-40% of the time I start the transport I'll just get a violent buzz.
 
I get this with new projects containing no plugins (just an imported MP3) and with larger projects with many plugins/pro-channel modules. I've tried various settings like enabling/disabling 64 bit precision engine, changing buffer sizes and cache settings. But it still happens.
 
I'm using a Focusrite 2i2 (1st gen) and the latest drivers, and latest CBB
 
Is there any way to diagnose what is causing this and work out how to solve it?
#1
emwhy
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/10 18:28:08 (permalink)
I had a similar problem with the Focusrite 18i20 about a year ago. My solution after a month of this happening randomly was to get rid of the Focusrite. Haven't had the problem since. Sorry if this seems trite, but the unit gave me a lot of grief in the short time I had it. This doesn't mean I think their stuff is bad, just a bad fot for my system and possibly yours.
 
 
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msmcleod
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/10 18:30:50 (permalink)
I had this with the 2i2 - uninstalling the drivers, rebooting, re-installing & rebooting worked for me.
 
[Edit] - You may have to delete your AUD.ini file too

Mark McLeod
Cakewalk by BL | ASUS P8B75-V, Intel I5 3570 16GB RAM Win 10 64 + Win 7 64/32 SSD HD's, Scarlett 18i20 / 6i6 | ASUS ROG GL552VW 16GB RAM Win 10 64 SSD HD's, Scarlett 2i2 | Behringer Truth B2030A / Edirol MA-5A | Mackie MCU + C4 + XT | 2 x BCF2000, Korg NanoKontrol Studio
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andyjobson85
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/10 18:34:01 (permalink)
Also, I don't remember it happening with X3 or Platinum and possibly older Focusrite ASIO drivers.. Focusrite appears to have changed their drivers; the ASIO panel has this crappy Fisher Price interface now..?
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msmcleod
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/10 18:41:44 (permalink)
The driver I'm using is 4.36.4.484, which is dated June 2017.
 
It looks like the latest is 4.36.5 (Jan 2018).
 
The older driver is working fine for me, and there's nothing in the release notes that indicates I need to upgrade.

Mark McLeod
Cakewalk by BL | ASUS P8B75-V, Intel I5 3570 16GB RAM Win 10 64 + Win 7 64/32 SSD HD's, Scarlett 18i20 / 6i6 | ASUS ROG GL552VW 16GB RAM Win 10 64 SSD HD's, Scarlett 2i2 | Behringer Truth B2030A / Edirol MA-5A | Mackie MCU + C4 + XT | 2 x BCF2000, Korg NanoKontrol Studio
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msmcleod
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/10 18:46:59 (permalink)
emwhy
I had a similar problem with the Focusrite 18i20 about a year ago. My solution after a month of this happening randomly was to get rid of the Focusrite. Haven't had the problem since. Sorry if this seems trite, but the unit gave me a lot of grief in the short time I had it. This doesn't mean I think their stuff is bad, just a bad fot for my system and possibly yours.

 
The 18i20 is a different beast altogether, and only the latest beta drivers have made the USB drivers common to all devices.
 
For the 1st gen 6i6 model and above (so, including the 18i20), everything is integrated into the MixControl app.
 
The Solo, 2i2 and 2i4 don't use MixControl and instead just have the USB driver.
 

Mark McLeod
Cakewalk by BL | ASUS P8B75-V, Intel I5 3570 16GB RAM Win 10 64 + Win 7 64/32 SSD HD's, Scarlett 18i20 / 6i6 | ASUS ROG GL552VW 16GB RAM Win 10 64 SSD HD's, Scarlett 2i2 | Behringer Truth B2030A / Edirol MA-5A | Mackie MCU + C4 + XT | 2 x BCF2000, Korg NanoKontrol Studio
#6
Anderton
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/10 20:24:27 (permalink)
Maybe a really short audio loop is enabled?

The first 3 books in "The Musician's Guide to Home Recording" series are available from Hal Leonard and http://www.reverb.com. Listen to my music on http://www.YouTube.com/thecraiganderton, and visit http://www.craiganderton.com. Thanks!
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msorrels
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/11 01:43:50 (permalink)
I saw this on a friend's 2i2, his problem was the latency he was trying to run was way too low for the soft synths he was trying to use.  At first I thought it was a ground loop of some sort, but it really was running too small a latency for the computer and synths he was trying to use.
 

-Matt
 
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andyjobson85
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/11 13:31:19 (permalink)
msmcleod
The driver I'm using is 4.36.4.484, which is dated June 2017.
 
It looks like the latest is 4.36.5 (Jan 2018).
 
The older driver is working fine for me, and there's nothing in the release notes that indicates I need to upgrade.


I'd like to try an older driver and see if that helps, but I can't seem to find 4.36.4.484 available anywhere for download.. Focusrite's site just funnels you towards the latest release
 
Any idea where to download older Focusrite drivers?
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msmcleod
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/11 13:53:29 (permalink) ☄ Helpfulby andyjobson85 2018/10/11 14:04:27
Alex Bull from Focusrite posted a link on AudioFanzine:
 
https://en.audiofanzine.com/audio-interface/forums/t.10452,scarlett-focusrite-2i4-help.html
 
I'd try msorrels' suggestion of increasing your buffer size first though, before reverting your drivers.
 
 

Mark McLeod
Cakewalk by BL | ASUS P8B75-V, Intel I5 3570 16GB RAM Win 10 64 + Win 7 64/32 SSD HD's, Scarlett 18i20 / 6i6 | ASUS ROG GL552VW 16GB RAM Win 10 64 SSD HD's, Scarlett 2i2 | Behringer Truth B2030A / Edirol MA-5A | Mackie MCU + C4 + XT | 2 x BCF2000, Korg NanoKontrol Studio
#10
andyjobson85
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/11 14:05:17 (permalink)
msmcleod
Alex Bull from Focusrite posted a link on AudioFanzine:
 
https://en.audiofanzine.com/audio-interface/forums/t.10452,scarlett-focusrite-2i4-help.html
 
I'd try msorrels' suggestion of increasing your buffer size first though, before reverting your drivers.
 



Thanks for the link :) Yeah I've tried a number of different buffer settings already, unfortunately to no avail
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andyjobson85
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/11 14:07:22 (permalink)
Anderton
Maybe a really short audio loop is enabled?




Hi Craig - no, it happens regardless of loop being enabled/disabled. When it occurs, CBB visually appears to play back: the Now time advances normally, its just the sound that's busted
#12
emwhy
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/11 14:47:23 (permalink)
Couple of tech questions
 
AMD or Intel system?
Is the device connected to a USB 2.0 or 3.0 port?
 
My friend had a 1st gen Scarlett on an AMD system into a USB 3.0 port and after the latest driver updates a few months it was nothing but grief for him.
 
 
#13
msorrels
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/11 14:48:56 (permalink)
What I was seeing sounded like the computer hadn't finished setting up the next ASIO buffer and the 2i2 driver "looped" on the one it just played.  Which because it's so short would create some awful noise/buzz/etc.  I don't think the 2i2 driver handled/handles recovering very well in this case.  The only solution was to set the ASIO buffer (none of the settings in SONAR had anything to do with it) to a much larger number (1024 samples I think).  Which made the buzzing stop but of course made recording/playing pretty close to unusable.
 
The 2i2 does seem to have some issues with the power supply/USB circuit as well, but it wasn't the problem.  I wasn't impressed with the isolation between the USB port/power and the speakers.

-Matt
 
#14
andyjobson85
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Re: Motorboating (no sound just harsh buzz) on playback/record 2018/10/18 12:58:49 (permalink)
msorrels
What I was seeing sounded like the computer hadn't finished setting up the next ASIO buffer and the 2i2 driver "looped" on the one it just played.  Which because it's so short would create some awful noise/buzz/etc.  I don't think the 2i2 driver handled/handles recovering very well in this case. 



This is exactly the symptom.
 
After checking, I actually had the 4.36.4.484 driver installed already, so I updated to 4.36.5, but saw the same problems.
 
The Scarlett was connected to a USB 2.0 port on the back of my case (next to other peripherals). Then I tried plugging it into a different USB port (this time a USB 2.0 port on the front of my case) and this makes a HUGE improvement. I might get the problem once or twice in a 5 hour session now :-)
 
So I guess it's either the USB cable is on its way out, or is somehow interfered with by something else I've got plugged in..? Still can't really be sure, but I've ordered a new decent quality cable to see if that eliminates the problem completely.
 
Thanks for your suggestions
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