newbie noticing distortion

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Kamel
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Joined: 2010-05-09
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Hello,

I have been using Ardour for only one day. I sometimes hear digital distortion when playing a track. I am using a 6-yr old PPC macbook pro (1GH processor, 1GB RAM); I experience this distortion without any plugins loaded. The distortion is like extremely short digital beeps, that occurs at seemingly random times, but fairly frequently (at least every few times I playback a track).

Any idea of what might be causing this? Is there other info I could provide that'd be helpful?

thanks,
George

paul
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Joined: 2006-03-16
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Is JACK running in realtime mode? How did you start JACK (JackPilot, or did you just leave it to Ardour to start it)? What audio interface are you using - the builtin one on the macbook or something else?

Kamel
User offline. Last seen 3 years 16 weeks ago. Offline
Joined: 2010-05-09
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//Is JACK running in realtime mode?

I'm not sure. I don't see any controls in Ardour or JackPilot that refer to realtime mode.

//how did you start JACK (JackPilot, or did you just leave it to Ardour to start it)?

I had been just leaving it to Ardour to start JACK; although I have since tried starting JackPilot first and then starting Ardour. The occasional beep-distortion behavior seems the same in both cases.

//What audio interface are you using - the builtin one on the macbook or something else?

Built-in Audio.

allank
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Joined: 2006-12-07
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I have a similar machine (1.5GHZ powerbook with 1.5GB RAM) (not my primary... which is a linux desktop)...... although I haven't used Ardour on it for a while (and is sitting at about 2.8.3.. from memory) I used jackpilot in realtime mode.. with loose latency settings (about 10ms ) I was able run 16 tracks with a few simple plugins.... when I added some of the focusrite plugins I needed to push the latency right up....(this was also on the built in sound while I was away on holidays)...

So in short with jackpilot you should be able to run ardour quite happily on your machine if you don't try to push it too hard...... I suggest reading information about jack settings .. increasing periods and buffers will make it seem sluggish but allow you to do more..