Hum eliminator?

Ok i dont know if anyone remember my previews post but i had a post about hum in the background of my recording.
Got some good advises, read about hum in tweakheads and took away the adapters that had been interfering with my audio cables. I also changed the the whole setup of my gear. The good thing is that teh hum has disapeared slightly, but i still hear "SsSsSsS" in the background if my gain and master volum is high. I read that there will always be alittle hum in the background. I also found out that my sockets in my room are not grounded well it should be grounded but the electricans who made this long time ago didnt do a great job.. So thats probably why the "hiss" (as called in tweakheadz.) is still alittle high... so my question is: Will the Hum eliminator do any good for or do i have a big problem?

Jaytim3 wrote:but i still hear "SsSsSsS" in the background if my gain and master volum is high

"Hum" is not the same as "Hiss". If you solved your grounding problems (Hum), and you still have this noise (Hiss), I'm afraid there's not much you can do about it except adjust your levels. I'm sure I told you this before, but take care not to max out recording levels and channel levels on your mixer and soundcard. I'm almost sure it has nothing to do with your power sockets or electricity.

Ok well its ok for now though im only recording through mixer with my mpc but for the future i will be buying a synth that probably needs to go through the mixer if im gonna record in to cubase...

check the gain stages... Each time you amplify any signal, you also amplify the noise.

so when you run audio through your mixer and amplify it, then into the MPC it is amplified a second time. play with the "trim", "volume", or "gain" knobs (whatever your mixer calls them) to find the right combination. Also, try headphones. sometimes the speakers or speaker cables are at fault.

and don't run audio cables alongside power cables. If they have to cross, have them cross at 90 degrees (think of a "plus" sign)

good luck

Something for you to consider. I recently opened one of my rack power distribution boxes and found that it was sporting a pretty decent noise suppressor inside. That's why I always tell folks to leave the generic consumer power strips alone, they just can't compare.

The hiss you are hearing at loud gains is pretty normal when cranking monitors up.
Of course, cables, more devices in the signal path, faulty sound card, noisy drives etc can all play a role in adding 'noise' to the path, but if this is simply a volume issue then it's pretty normal.

I run PMC TB2S+ off a Bryston 4B Pro and if I crank the volume up then I can hear ambient noise in the background.

Hiss has little to do with grounding issues or transformer and amp generated signals.

Another reason for hiss, assuming there are no faulty devices in the signal path or that you are not adding generations of devices in the path, is that of noise floor and headroom, ie the dynamic range.

If you work of 24/44.1 then the high bit depth allows for a low noise floor and higher ceiling.
Try it and you will immediately hear the difference.

I have a Yamaha NW12 Mixerand it has already a soundcard into it, so the usb goes from the mixer staright to the pc.
I also have a very big room...

What o u mean by Not Adding generations of devices in path?

If that's all you have then there are no devices in the path.

Devices means the more gear you attach in the signal path, compressor inserted thru mixer, effects on auxes etc.

Mixers tend to exhibit low level hiss so don't worry about this too much.
If you hear the his at normal listening levels then that's a different story but as you only hear it when you crank the volume up then that's not too much of an issue.

ok i can slightly hear the Hiss on normal volume.. but what i dont like is when i record something from the mpc through the mixer to a DAW i can sometimes hear the hiss in the background.. but i can set the gain very low and the main volume of the mpc. Its just if i record alot through the mixer i will hear the hiss.

Most mixers (analogue), by their very nature will impart the sonic qualities of the buses onto the output signal, so this is normal. The better the mixer the less noise.
I used to use a Mackie 1604 Vlz Pro and that had a really good SNR but I still used a DF 330 noise filter across the main outs to my Mac just to eliminate the high frequency hiss that was present.

The other issue is that of signal calibration or gain staging: getting the right level from MPC to mixer to computer. The lower the signal gain the more the noise floor is extended when the gains are pushed up.

Try to find a good balance between the gains starting with the MPC and then mixer and then sound card.

I currently using Reason with Cubase and when my gain is low allwhat im recording in to cubase is very very low so i need the gain to be high... so when i use cubase i have to set the gain up high and when im recording with my mpc i have to set the gain low... thats also one prob.. well not a big prob but its sucks to change the gain all the time..