 Recording With Cracks And Pops, in Logic Pro |
 Fri 17 Feb 2006, 22:45
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#1
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 Member  Group: Members Posts: 66 Joined: 11-Oct 04 From: - PT Member No.: 52,995  |
Hi
I've noticed this problem: I have a Powerbook g4 15" OSX 10.4.4, a Lacie Firewire external disc, a Terratec Phase 24 firewire soundcard, an M-Audio Midisport 4x4 midi interface, a Clavia Nord Lead, a Waldorf Xtk, Yamaha Fs1r, Oberheim Matrix 1000 and an Yamaha 01V digital mixer. The digital out of the mixer is connected to the digital in of the soundcard. In Logic Pro 7.1, when I record the stereo out of the mixer thru the digital cable (spdif) into the soundcard I get cracks and pops. I'm always recording to the external disc (7200rpm). I've tried the Powerbook's hard disk and I get the same problem. Usually the recorded file sounds good at the beginning, but after some minutes it starts to have those cracks and glitches. And I'm sure they're recorded. It´s not a playback problem. I'm recording at 24bit 44100hz. I've tried recording second time and it had no cracks and pops ! Does Logic need to play all the song before it is recorded ? Do I have something wrong on my preferences ? Is this a bug ? I've also noticed that when I use Kontakt 2 and I play a song for the first time, as soon as the song pointer reaches the Kontakt notes Logic stops with the following message: " CoreAudio System Overload.The audio engine was not able to process all required data in time.(-10011)". When I play the song the second time, Kontakt plays with no problems and the song doesn't stop. Is this related to the cracks and glitches problem in some way ? What do you think ? Thank you. Alex |
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Mon 20 Mar 2006, 17:02
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#2
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Newbie Group: Validating Posts: 21 Joined: 18-Dec 05 From: Albuquerque - US Member No.: 74,080 |
You must be a very observant musician!!! You found the SOURCE of the noise, but it's maybe not the problem?
I know nothing about household electricity in your home country, but I know a little about unwanted analog signal (NOISE), caused by unbalanced current or electricty. When your fridge (or other "load" on your household current) starts up, it changes the household current, which has its own, essentially, analog signal. The household current becomes "unbalanced" in relationship to your home grounding system. Especially with motors or other high amp draw home appliances, this can be a problem. Somehow this imbalance is finding its way to your recording equipment? Short of hiring an electrician (not yet anyway), if you were recording OK before & this recording noise is new, did you add a new piece of equipment, or cable, or electrical power strip? Something as simple as a ground connection gone bad in a TRS cable, or jack can act as an antenna... or a component in an amp or something? Maybe you rerouted your cables to hook up new equipment and have the power and audio (digital or analog) cables laying side by side? The noise problem is very believable. You are too cool for finding & recognizing the source! Professional studios spend much time and money to eliminate noise, especially electrical noise. If you're interested in a good technical read on the subject- http://www.equitech.com/articles/enigma.html Let us know what you find & good luck. RECORDING NOISE This post has been edited by jce44: Mon 20 Mar 2006, 17:29 -------------------- dB= deciBell. (CAPITOL "B") In honor of Alexander Graham...
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Posts in this topic
camarao Recording With Cracks And Pops Fri 17 Feb 2006, 22:45
gdoubleyou which device is sending the masterclock? How much ... Fri 17 Feb 2006, 22:57 camarao QUOTE (gdoubleyou @ Feb 17 2006, 21:57)which ... Sat 18 Feb 2006, 10:54 Metro SE The cracks and pops definitely sounds like a maste... Sat 18 Feb 2006, 16:32 camarao QUOTE (Metro SE @ Feb 18 2006, 15:32)The crac... Sun 19 Feb 2006, 15:33 ironhead ok this sounds like a buffer problem may be you bu... Sun 19 Feb 2006, 19:37 gdoubleyou Also in the Power saving preference set the cpu to... Mon 20 Feb 2006, 19:16 camarao the buffer was always 512 and I even tried with 10... Sat 25 Feb 2006, 20:01 Metro SE QUOTE (camarao @ Feb 25 2006, 14:01)1 - delay... Sun 26 Feb 2006, 03:03 lepetitmartien And verify everyone agrees to work at the same bit... Sun 26 Feb 2006, 05:24 camarao QUOTE (Metro SE @ Feb 26 2006, 02:03)QUOTE (c... Sun 26 Feb 2006, 21:40 camarao QUOTE (lepetitmartien @ Feb 26 2006, 04:24)An... Sun 26 Feb 2006, 21:41 camarao I think I've tried everything...I even get the... Sat 11 Mar 2006, 23:14 lepetitmartien Time to bother the interface makers Sun 12 Mar 2006, 03:17 camarao QUOTE (lepetitmartien @ Mar 12 2006, 02:17)Ti... Sun 12 Mar 2006, 12:17 camarao QUOTE (camarao @ Mar 12 2006, 11:17)QUOTE (le... Tue 14 Mar 2006, 01:08 camarao I FOUND IT !!! And it's unbelievab... Sun 19 Mar 2006, 23:14 camarao QUOTE (jce44 @ Mar 20 2006, 16:02)You must be... Mon 20 Mar 2006, 17:40 Mac Daddy Camaro... Great advice. Just to add to your reply... Sun 26 Mar 2006, 13:09 lepetitmartien Time to go for some power conditionner or UPS (on-... Sun 26 Mar 2006, 15:42 camarao QUOTE (lepetitmartien @ Mar 26 2006, 14:42)Ti... Mon 27 Mar 2006, 01:28 gdoubleyou You may also want to have an electrician look at y... Thu 30 Mar 2006, 01:40 jce44 Were you recording OK before & this recording ... Thu 30 Mar 2006, 16:28 camarao QUOTE (gdoubleyou @ Mar 30 2006, 00:40)You ma... Thu 30 Mar 2006, 23:42
camarao QUOTE (jce44 @ Mar 30 2006, 15:28)Were you re... Thu 30 Mar 2006, 23:43 |
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