Why is my Vinyl to Computor recording system not performing correctly?

  BarryFS 00:07 AM 19 Apr 13

I have the following system set up: Denon DP-30L Turntable/Yamaha RX-500/U Stereo Receiver/Dell Optiplex 755 Computor with Windows XP pro/DJ-Tech RCA-2-USB PnP Audio Device with Software/Magix Audio Cleaning Lab MX Software. When I play an LP the Audio Cleaning Lab software tells me the Audio input is too low. I slide the Audio input volume to maximum record and the screen shows a thin band with peaks and valleys on the screen. The recording level meters show the recording level at about -25/-30db.When I play the result back there is a humming noise which is mixed in the the music. When I clean the recorded track on the Audio Cleaning Lab software it does not totally get rid of the humming sound. I also tried normalizing the recording but got the same result. I also diconnected the Turntable ground wire from the Receiver to cut down on humming. How can I increase the Audio input signal without setting it to maximum volume? Is my Receiver good enough to do the job or do I need to use a phono preamp in its place? Is there anything else I can do to make this function correctly? BarryFS

  wiz-king 07:49 AM 19 Apr 13

Sounds (pardon the pun) like you need a preamp as the output from your turntable may be low.

  amonra 08:27 AM 19 Apr 13

You need an audio pre-amp, quite cheap on ebay.

  hastelloy 08:47 AM 19 Apr 13

I agree a preamp is the answer. If the him is a 50 cycle mains hum, you may need to check that everything is effectively earthed to remove this.

  hastelloy 08:48 AM 19 Apr 13

I don't know who the him is that's humming! him = hum.

  Ian in Northampton 10:46 AM 19 Apr 13

In the good old days, amps came with a pre-amp built in precisely because the output from a record deck was so low. Modern amps tend not to have them - so I make the posters who have recommended a pre-amp about right.

  canarieslover 12:53 PM 19 Apr 13

Looking at the manual for your receiver - RX 500/u manual - it does have an input for the turntable so I should think that there is a pre-amp built in. You need to use a line level output such as the Tape 1 as that should give the correct output levels and is not affected by the volume control. This should be connected to the Line in on your computer. Hope this helps you.


This thread is now locked and can not be replied to.

Best Black Friday deals 2015 live blog: Best UK Black Friday deals & best UK Black Friday tech…

1995-2015: How technology has changed the world in 20 years

The best Black Friday Deals for designers and artists – updated

20 Mac Power User Tricks... That You Didn't Know