V-Synth

odd high whine from v-synth outputs

odd high whine from v-synth outputs

16 Jul 2009, 22:16
When i plug my v synth into speakers, or headphones, there is no discernable noise, however, when i plug it into my tapco audio interface, or the built in inpit on my imac, i notice an odd noise, around the 200hz mark,that seems to be slowly phasing. Ive noticed, that if plugged into the input of the mac, my dodgy mouse seems to play a part in making this noise (the wire is partially torn)

Ive tried using different cables, they all do it. I cannot try a different interface, speakers or computer. The strange thing is, it does not matter if the v-synth is turned on or not, just that a lead is plugged in and fed into the interface or the computer.

My question is, is this due to bad cabling, is something causing interference which is picked up by the synth, or is there something wrong with my keyboard, possibly the inout/ output jacks?

This is causing me a whole world of worry, as i bought the sytnh on credit a couple of years ago, and so has cost me ALOT of dosh. i can handle it if my interface is fucked, the synth not so much.

Re: odd high whine from v-synth outputs

17 Jul 2009, 04:41
I can't point you to the source of the noise, but here are a couple of experiences I've had,

- Noise due to a bad USB cable.

- On my MacBook Pro, everytime I plugged my soundcard to the USB port closest to the power supply, there was noise. The other two ports gave reduced noise. So , it was something with the Power Supply interfering with the USB channels. My only option was to shift from a USB soundcard to a Firewire soundcard.

- Leaving the WiFi connection ON while mixing, interfered and gave me noise.

As for cables, there are high quality double insulated Monster cables that you get, which apparently eliminate cable related noise.

Hope this helps, I understand how annoying it can be. It sometimes takes me days to figure out the source.

Cheers.

Re: odd high whine from v-synth outputs

17 Jul 2009, 09:47
you know i think its is something to do with USB, thanks. Ive had the synth plugged in via USB during all my checks. Also i have noticed there is something definately uneven about the USB ports on the mac, like you mentioned. Thanks alot for your speedy reply, it is indeed infuriating, I hope thats the answer, though yeah, i think i need to sort out my cabling also, actually drop some money on some decent ones rather than on sound producing toys. Cheers

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