jsg
Max Output Level: -69 dBFS
- Total Posts : 1079
- Joined: 2003/11/20 04:54:18
- Location: San Francisco, California
- Status: offline
Audio distortion/crackling, not clipping
I am using Sonar Platinum with the MOTU 1248 audio interface. I am getting crackling when I record audio. It doesn't matter if the source is MIDI, a live instrument or voice. The crackling is getting recorded, I attached jpg of the wave  , if you examine it zoomed in you can see there are little triangle waves randomly occurring throughout the audio. They should not be there. I am using a fast i7 chip with SSD drives, both for the main drive (OS and programs) and the data drive. I have 16GB of RAM and there's nothing that I know of running in the background that might be causing this. My latency measurements are excellent, when I measure latency for 30 seconds, my latency reporting software is showing a maximum of 165 microseconds. I am running Windows 7 service pack 1 with recent updates. I was having this problem with an older MOTU driver. I downloaded and installed the newest driver, and the first time I recorded with the new driver, the problem was gone, but then it returned, sometimes I record and it's fine, another time and the crackling is back. I have confirmed it's not clipping. It may be a Sonar problem, but I am not sure. Any help is much appreciated!
|
fireberd
Max Output Level: -38 dBFS
- Total Posts : 3704
- Joined: 2008/02/25 14:14:28
- Location: Inverness, FL
- Status: offline
Re: Audio distortion/crackling, not clipping
2017/08/18 10:40:35
(permalink)
Download and run the free Resplendence Latency Mon - just on the basic PC, not with the recording interface connected and see what it tells you. I suspect there is a PC system issue causing that. May even be just that its on-line. I once had your problem and disabling the Ethernet NIC when recording fixed the problem. http://www.resplendence.com/latencymon
"GCSG Productions" Franklin D-10 Pedal Steel Guitar (primary instrument). Nashville Telecaster, Bass, etc. ASUS ROG Maximus VIII Hero M/B, i7 6700K CPU, 16GB Ram, SSD and conventional hard drives, Win 10 Pro and Win 10 Pro Insider Pre-Release Sonar Platinum/CbB. MOTU 896MK3 Hybrid, Tranzport, X-Touch, JBL LSR308 Monitors, Ozone 5, Studio One 4.1 ISRC Registered Member of Nashville based R.O.P.E. Assn.
|
WalkerTalker
Max Output Level: -90 dBFS
- Total Posts : 37
- Joined: 2015/05/04 04:04:31
- Status: offline
Re: Audio distortion/crackling, not clipping
2017/08/18 10:57:47
(permalink)
SONAR Artist x64 | Windows 7 x64 | i5 8600K | 32 GB | Radeon R9 380X | RME Fireface 400
|
jsg
Max Output Level: -69 dBFS
- Total Posts : 1079
- Joined: 2003/11/20 04:54:18
- Location: San Francisco, California
- Status: offline
Re: Audio distortion/crackling, not clipping
2017/08/18 15:54:33
(permalink)
fireberd
Download and run the free Resplendence Latency Mon - just on the basic PC, not with the recording interface connected and see what it tells you. I suspect there is a PC system issue causing that. May even be just that its on-line. I once had your problem and disabling the Ethernet NIC when recording fixed the problem.
http://www.resplendence.com/latencymon
Not sure you read my entire post. I have already tested latency using similar software, max latency is 164 microseconds, well within spec for digital audio...
|
jsg
Max Output Level: -69 dBFS
- Total Posts : 1079
- Joined: 2003/11/20 04:54:18
- Location: San Francisco, California
- Status: offline
Re: Audio distortion/crackling, not clipping
2017/08/18 15:55:50
(permalink)
fireberd
Download and run the free Resplendence Latency Mon - just on the basic PC, not with the recording interface connected and see what it tells you. I suspect there is a PC system issue causing that. May even be just that its on-line. I once had your problem and disabling the Ethernet NIC when recording fixed the problem.
http://www.resplendence.com/latencymon
|
jsg
Max Output Level: -69 dBFS
- Total Posts : 1079
- Joined: 2003/11/20 04:54:18
- Location: San Francisco, California
- Status: offline
Re: Audio distortion/crackling, not clipping
2017/08/18 15:56:26
(permalink)
|
fireberd
Max Output Level: -38 dBFS
- Total Posts : 3704
- Joined: 2008/02/25 14:14:28
- Location: Inverness, FL
- Status: offline
Re: Audio distortion/crackling, not clipping
2017/08/18 18:42:48
(permalink)
I took your post as you ran a latency program for your recording setup and not the basic PC, which is what I was referring to with latency mon program. Could be your problem is somewhere in the PC rather than with the recording equipment setup.
"GCSG Productions" Franklin D-10 Pedal Steel Guitar (primary instrument). Nashville Telecaster, Bass, etc. ASUS ROG Maximus VIII Hero M/B, i7 6700K CPU, 16GB Ram, SSD and conventional hard drives, Win 10 Pro and Win 10 Pro Insider Pre-Release Sonar Platinum/CbB. MOTU 896MK3 Hybrid, Tranzport, X-Touch, JBL LSR308 Monitors, Ozone 5, Studio One 4.1 ISRC Registered Member of Nashville based R.O.P.E. Assn.
|
Cactus Music
Max Output Level: 0 dBFS
- Total Posts : 8424
- Joined: 2004/02/09 21:34:04
- Status: offline
Re: Audio distortion/crackling, not clipping
2017/08/18 20:14:29
(permalink)
☄ Helpfulby chuckebaby 2017/08/18 20:29:04
Have you tried swapping out all cables involved, both audio and USB?
To trouble shoot these issues you have to try swapping things out until you find the culprit Using alternate hardware including if you can all cables first, then a different interface. Go borrow one from someone or your local dealer.
I test my computers background noise by recording silence into Wave Lab. I once had an issue with my wireless mouse creating static in the monitors. It didn't get recorded and that's how I tested it.
You should see what you get if you try this with some Laptops and onboard audio, a huge noise floor happening.
|
chuckebaby
Max Output Level: 0 dBFS
- Total Posts : 13146
- Joined: 2011/01/04 14:55:28
- Status: offline
Re: Audio distortion/crackling, not clipping
2017/08/18 20:28:42
(permalink)
Cactus Music
Have you tried swapping out all cables involved, both audio and USB?
To trouble shoot these issues you have to try swapping things out until you find the culprit Using alternate hardware including if you can all cables first, then a different interface. Go borrow one from someone or your local dealer.
+1 Good advise Johnny
Windows 8.1 X64 Sonar Platinum x64 Custom built: Asrock z97 1150 - Intel I7 4790k - 16GB corsair DDR3 1600 - PNY SSD 220GBFocusrite Saffire 18I8 - Mackie Control
|