background noise

[electrolover]

hi, im new here. i have two problem i hope somebody can tell me something about them...

1- if i add/plugged pulsar analog source any of the mixer i hear a lot of deepnoise (nothing plugged to hardware even its own classic20).if i dont add it there is no deepnoise but i want to connect my analog mixer to creamware project's audio-in.

2-when i play any of the vsti (and standalone versions with asio) suddenly sounds gone approximately 20-30 min later.if i use cubase there give me a message about scope not working but actually it is still working but no sound.

any ideas?

thanx.

[at0m]

1) What do you mean with "deepnoise"? VU's showing -40 to -60dB or so is normal - that's the fault of the dynamic range of the VU meters. But that should not/bearably be audible, if it gets audibly disturbing, that'd be very odd. What if you actually connect your analog mixing table?

2) What are your machine's Power Options (supposing you're on Windows) settings? In particular, Scope is sensitive to or tends to react bad on spun down disks. Turn off hard disk power savings at least, and de-activate power saving at all while running Scope and a sequencer.
The spinning down of the disk can be restored by opening something silly on the concerned disks, like a text or image, in another application, before asking Scope to access that disk again. Scope doesn't seem to have the patience to wait untill a disk has spun up.

Maybe just some wild guessing here, I only have a vague idea of your problems...

[electrolover]

thank you for quick reply.

deepnoise, i mean very audible background noise even nothing connected on the board, even its own cable.
software side, if i add analog source i can hear a lot of background noise and also it is not static; it is dynamic. for example, every mouse movement give extra sizzling.background noise+sizzling.connecting something on analog source does not better than null.


all winxp visual things off, power savings off, there is no irq sharing with scope, registry defragged, hdd defragged.edited winxp using with NLite.

dfi mainboard (570m2/g)
2gb patriot ram (1150mhz)
amd 6000+
4xseagate hdd

[greenbluegold]

If I activate the analog in on my scope pro + with no signal coming in I too get audible background noise. I've never tried disconnecting the breakout. I assume it's rf interference from being plugged into a computer, but I don't know. I never had that problem with an RME Digi96-8. I don't use the analog inputs for critical recording, just monitoring mixer outs.

[electrolover]

thank you for the reply.

yes i have a rme hdsp9632 and i never had like this problem with it. but scope analog in (adding analog source) produse noise, does not matter breakout cable plugged or not or something plugged analog in or not. noise starts when add analog source in the routing window.

at first, i used to luna for 2 years and never had a problem except midi in-out never worked so i bought 4in/out midi interface. and now i have scope project and trying to use these days but background noise very disturbing.
tomorrow i try to examine the card and try clean contacts with philips contact cleaner if no one could not help me.

[Pete]

On mine there's no noise from the analog in - dead quiet.

But the mixer's bottom-most LED is lit on that channel. If I mute it, the LED at the mixer's output turns off.

My card is an older power Pulsar.

I do have the analog cable connected.

[garyb]

there should be SOME noise on any electrical audio circuit. the flow of elcetrons through the wire makes noise, but if it's computer noise or objectionally loud, there's problem, possibly a poorly grounded power supply...

[Neutron]

whats the signal output of the mixer? if you have to have to have a lot of gain you could hear that on any internal PC soundcard.
(do you have to turn up the mixer trim on the scope mixer?)

[electrolover]

background noise currently audible when analog source connected to any of the mixer on routing window.

there should be SOME noise on any electrical audio circuit. the flow of elcetrons through the wire makes noise, but if it's computer noise or objectionally loud, there's problem, possibly a poorly grounded power supply...

"possibly a poorly grounded power supply..."
what and how can i do for it? is there a solution?here,mostly in apartments, there is no earth wire. usually ground connected with - (negative side) in evry electricity plugs and sockets.

strange thing is there is no problem with sound blaster (internel and external usb), terratec, rme cards but scope has noise even the expensive than others.sadly,dissapointing...

[Pete]

If I boost the analog's input channel and the mixer output channel, then there's some noise; if I boost them all the way up, to 12.0, then there are 4 LED's lighting up, and clearly some noise.

With the input channel all the way up, and the mixer outs on 0.0, though, I don't hear any sound.

Do you get noise with just a bare-bones kind of project loaded? No digi or external soundcard modules? How about with the other soundcard out of the computer?

Seems like I had this problem once before, maybe with a soundblaster installed.

[electrolover]

currently i have only one pci card in the pc case. it is scope project.software ver.4.5 with synth'n sampler pack.noise is static but there is sizzling with my every mouse movement, funny is not it;)

i also have sb audigy nx (external) .

[Pete]

I think I had that problem once.

I've had three or four scope cards pass through, and you're not supposed to get computer noise from the analog.

One easy thing to do, if you haven't, is to go to the LiveBar's menu, open the routing window, and disconnect or remove all the modules except the mixer and analog in and out.

Maybe computer noise could get in, if you have a digi or soundcard module in there. I seem to remember something about disconnecting that little cable from the cd drive, too.

[electrolover]

thank you for the opinions and ideas.

cd audio cable (internal) not connected.
when removed analog source module or just not connect it to mixer there is no noise.

[Pete]

I wonder if some setting in the Windows Sounds and Audio devices of Control Panel could be putting some noise into the analog source.

[electrolover]

I wonder if some setting in the Windows Sounds and Audio devices of Control Panel could be putting some noise into the analog source.

as seen the attached picture nothing related about scope.

2009-02-26_230732.jpg (43.59 KiB) Viewed 2584 times

scope would be for analog in and and asio (for vsti's) only. audio signal goes to sb audigy nx with toslink optical.
basically music for scope all other things for audigy nx but all sounds can hear from audigy because speakers and headphones connected to audigy.
noise audio

[The extension mp3 has been deactivated and can no longer be displayed.]

vu

2009-02-26vu.jpg (34.31 KiB) Viewed 2585 times

[electrolover]

2009-02-26route.jpg (76.3 KiB) Viewed 2582 times

[garyb]

background noise currently audible when analog source connected to any of the mixer on routing window.

there should be SOME noise on any electrical audio circuit. the flow of elcetrons through the wire makes noise, but if it's computer noise or objectionally loud, there's problem, possibly a poorly grounded power supply...

"possibly a poorly grounded power supply..."
what and how can i do for it? is there a solution?here,mostly in apartments, there is no earth wire. usually ground connected with - (negative side) in evry electricity plugs and sockets.

strange thing is there is no problem with sound blaster (internel and external usb), terratec, rme cards but scope has noise even the expensive than others.sadly,dissapointing...

it's not like those other cards at all, except in that it passes audio. no highend work is possible with electrical issues. if it's the power supply, you'll need to replace it. if your apartment is 2 prong(no earth), you'll probably need to fix that....

sorry, sorry....

[electrolover]

then better sell it and buy a MOTU (my opinion is external hardware always better)?

[garyb]

Scope IS external hardware.

it should NOT have computer noise in it, except very low levels. if you have to turn the gain all the way up to hear it, then the signal is much higher and it's insignificant. if it interferes with monitoring, then it should be addressed. the fact that the card is inside the computer does make it more susceptable to noise, but connecting to the pci bus is light years better than usb or firewire as far as reliability and bandwidth is required.

[Pete]

It would be easy to select all Scope devices in the Windows control panel, and see if the noise stops. You might check using the analog dest, too.

Sounds like your noise is from the computer's i/o bus's, and the Soundblaster's one thing that uses it. You could try the volume sliders of the Soundblaster, and see if that changes anything.

I think I had this same kind of issue, when I had a similar setup.

I used to have ungrounded power, then put in the long copper rods and grounded it. I like having that.