| rlejr wrote on Tue, 21 December 2004 17:34 |
Thanks Bryan. I agree it is always better to be on the safeside. However, due to access and cable lengths, your answer wasn't what I wanted to hear. I need to run that SVGA cable along the audio path!!!
So, I sent an email to Furman Sound technical support. The answer I got back was yes there might be some crosstalk, but the SVGA signal is in the megahertz range. Any noise introduced would be miles above human hearing and anything that would be a problem for my DAW's.
|
I never ran svag near audio, and can not comment on the amount of cross talk. That depends on shielding, cable length and so on.
Say you have a signal that is in the MHz that carries some low frequency content. That is how radio works (AM modulation and FM modulation) and TV does also. I know in the case of radio there is a lot of audio modulating the high frequency (that is the whole idea of radio transmission). I am not sure about the case of svga.
Say some audio modulated high frequency finds it way to the audio signal. The process of separation of audio from the high frequencies - is called demodulation. Non linearity in a circuit can certainly demodulate the signal creating some audio signals.
Where is the non linearity? Few active circuits designed to accommodate say 20KHz, or 100Khz (or some other range), come with some "front end protection" (attenuation) against high frequencies. Many circuits designed for audio expect no high frequencies at the input. A circuit designed to behave well (linearly) for lower frequencies, may become very non linear at higher frequencies.
I am not saying it will happen. There are 3 "if 's" here:
1. The high frequency is a carrier for audio signals
2. Some of it will couple to the audio cable
3. The destination circuit will demodulate the audio
BR
Dan Lavry
