In article , Dave Plowman (News)
wrote:
In article , Brian Gaff
wrote:
I have been trying to make my new computer integrate with my stereo
system. However even using a Behringer usb sound interface still
produces a whine and general hash low level to playback signals,
though not noticed on the recording if its transferred to cd and
played normally. The question is that as things are plugged into the
usb the tone and loudness varies, so I suspect its either the power
supply or something inside the computer putting out this noise. If I
got a hub with a psu so that the sound unit could be powered by that,
do you think it would be better. It is low level but you know how it
is, once you heard it, you always hear it.

Pretty common with computers of all types. You usually have to add a
decent sound card to get a decent audio output at the end of the day.

However that "sound card" can often be a USB one. They key is to either:

A) Ensrure a 'USB powered' device gets its power froma quiet, stable, PSU.

or

B) Use a decent USB audio device that has its own dedicated PSU which is
quiet and stable.

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html