Any idea why this may be happening? I have not noticed this happening in Ableton until recently. Other programs did do it, but not ableton.
By the looks of it other people’s audio interfaces do not have this problem.
Any tips would be helpful. Thank you!
You’re clipping.
Turn the master down.
I understand when “digital” clips, it creates that crackling noise, but there is still plenty of headroom within the audio interface. When Ableton clips (which I have seen others do on videos) my master output on the interface is still fairly low, yet the noise is still occurring.
I have other programs that clip and do not create this nasty noise too. Why is there a difference from one program to the other?
sounds more like you may have a CPU/latency related problem
Go to your preferences/audio and turn on ‘Test tone’, set the CPU usage simulator to maximum.
If it sounds like its clipping increase Buffer Size and try again.
Let us know how you got on
[quote]seanl (05/06/2010)[hr]sounds more like you may have a CPU/latency related problem
Go to your preferences/audio and turn on ‘Test tone’, set the CPU usage simulator to maximum.
If it sounds like its clipping increase Buffer Size and try again.
Let us know how you got on[/quote]
I don’t hear the test tone when I select my Motu’s ASIO driver. ???
so you can hear the music coming thru motu but not a test tone? 
that’s imposible! unless tone volume is at zero (minus something dB)
make sure that you have your Outputs highlighted in Channels Configuration/Output Config
the test tone should come through all outputs, check that the frequency is at 440hz or something that you can hear (and your speakers reproduce)
post a screenshot or something if no luck 
Yep, I can hear everything that comes out from Ableton except for the tone. I just messed around with it some more, nothing makes a difference with the actual ASIO driver from MOTU, but you know what did?
Driver Type: MME/DirectX
Audio Input Device: Motu Mix1 Wave
Audio Output Device: MOTU Main Outs DX
So it seems that Windows DirectX let’s the tone come through, meanwhile MOTU is sucking hard.
Interesting, maxing out the master (distortion) with the DirectX driver does not cause the nasty scratching sound I hear with the MOTU Asio Driver. Latency is way lower too!
In fact, I pushed the CPU Usage simulator all the way to max (80) and lower everything as far as I could and the Overall Latency indicated by Ableton is -78.7 ms??? :w00t:
No distortion, and better latency? There is something wrong with this picture… hmmm.
[quote]djbis (07/06/2010)[hr]Interesting, maxing out the master (distortion) with the DirectX driver does not cause the nasty scratching sound I hear with the MOTU Asio Driver. Latency is way lower too!
In fact, I pushed the CPU Usage simulator all the way to max (80) and lower everything as far as I could and the Overall Latency indicated by Ableton is -78.7 ms??? :w00t:
No distortion, and better latency? There is something wrong with this picture… hmmm.[/quote]
Nevermind that. DirectX is really weak once you put some plugins on some tracks. I have to go back to ASIO.
Funny thing though: The master is NOT crackling anymore… WTF?
This is a pain in the buttocks!
78 ms ??? that’s terrible, a 16th note at 128 bpm is 117ms, you wont be able to record anything vaguely in time. There is something seriously wrong with the driver, your card or your computer. I can’t really help you much more from here, get in touch with Motu tho.
I had similar problems, for me getting a mac fixed it 
[quote]seanl (07/06/2010)[hr]78 ms ??? that’s terrible, a 16th note at 128 bpm is 117ms, you wont be able to record anything vaguely in time. There is something seriously wrong with the driver, your card or your computer. I can’t really help you much more from here, get in touch with Motu tho.
I had similar problems, for me getting a mac fixed it ;)[/quote]
No -78 as is (Negative Seventy eight)
But it doesn’t matter. DirectX did not work anyway. ASIO is set to 12.7ms right now with fairly good results. I am not a fan of MAC’s but thank you.
PS: The crackling noises still come and go, I don’t get it. I will have to wait months for MOTU to get back on the 2 tickets I just wrote them. Sooooper!
negative delay??? :w00t:
ehh never mind 12.7 is good enough, anything bellow 30 ms is generally OK
try doubling your buffer size, also increasing PlugIn buffer in CPU settings may help,
change your usb/firewire port, also try different cables, if you using firewire try usb (and the other way round)
bloody computers, why things cant just work?! :crazy: