Hi guys, got a 4pre to use for my students in college and its started to make a high pitched sound. Even when i plug in just the 4pre and turn the p supply on the noise is present. ive tried connecting to the mac via firewire alone and the sound is present. When i turn off the power supply the noise goes away but at the mo its a real pain. i can record and playback ok.
Any ideas.
computer in class is a quad core 17 imac running osx 10.7.4 & Logic 9
4 pre high pitched sound
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Discussion related to installation, configuration and use of MOTU hardware such as MIDI interfaces, audio interfaces, etc. for Mac OSX
Discussion related to installation, configuration and use of MOTU hardware such as MIDI interfaces, audio interfaces, etc. for Mac OSX
4 pre high pitched sound
27"Imac 2.93Ghz i7 8Gb Ram OSX 10.6.8 Logic pro 9,Live 6, Reason 5, Ultralite 3,Genelecs 8030,Kontakt4
Re: 4 pre high pitched sound
Sounds like environmental interference to me, such as to something connected to the unit.
For example, fluorescent lighting, crt monitors, too close to power lines etc...
For example, fluorescent lighting, crt monitors, too close to power lines etc...
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BKK-OZ
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Re: 4 pre high pitched sound
sample rate mismatch?
Cheers,
BK
…string theory says that all subatomic particles of the universe are nothing but musical notes. A, B-flat, C-sharp, correspond to electrons, neutrinos, quarks, and what have you. Therefore, physics is nothing but the laws of harmony of these strings. Chemistry is nothing but the melodies we can play on these strings. The universe is a symphony of strings and the mind of God… it is cosmic music resonating through 11 dimensional hyperspace.
- M Kaku
BK
…string theory says that all subatomic particles of the universe are nothing but musical notes. A, B-flat, C-sharp, correspond to electrons, neutrinos, quarks, and what have you. Therefore, physics is nothing but the laws of harmony of these strings. Chemistry is nothing but the melodies we can play on these strings. The universe is a symphony of strings and the mind of God… it is cosmic music resonating through 11 dimensional hyperspace.
- M Kaku
Re: 4 pre high pitched sound
Not sample rate issue as it makes the noise even when the computer is turned off.
Mtec
Mtec
27"Imac 2.93Ghz i7 8Gb Ram OSX 10.6.8 Logic pro 9,Live 6, Reason 5, Ultralite 3,Genelecs 8030,Kontakt4