Re: Weird sound coming from USB using the Panel mixing Audio on Satellite C870-1EX

Hello!

So, my sister has Satellite C870-1EX and she uses new Audio Mixer with integrated sound card sends its via USB cable to the computer (computer recognises as external audio device and map). It's the device: http://alesis.com/multimix8usbfx.

A few weeks ago, she began to notice a very odd sound, sort of high-pitched, whistling, like a very fast electronic beep. Something similar to what good old modems of the internet when they were connected to the phone line, just not a little faster and strong.

First of all, of course, we tested every single setting on the Audio Mixer Panel.
Then, we got new USB cable and it traded.

After that we also took down all the material, checked all cables, if necessary, detangle swapped the power supply, check a different recording software, even tried a few other recording devices USB etc etc.

None of this has helped. The drivers are all there too.

Here's the catch. I used the same equipment with the same settings on my computer and no hissing noise at all. The thing is, any parameter, we tried, only the hiss remains the same, nothing changes.

Even if you apply a few sound effects which should either accentuate or reduce any type of noise in the signal that is sent to the USB port on the computer, this whistling noise remains the same.

What worries me is that something is wrong with the material of my sister's laptop.

The noise does not appear if we use, for example, microphone that uses 3, 5mm taken or the built-in microphone of the laptop during the recording of the commands in the same session with the same software and similar settings (given some must be different because of the different entry).

However, the noise is if we use an external USB recording equipment on any of its ports.

Windows on his laptop were resettled some time ago (now it is on Windows 7), but the problem appeared a few weeks later.
As I said earlier, the drivers are all there and to date as well.

So, I hope that one of you will return with a software sollution (single)... and I hope we will not need to take his computer back to the shop.

However, as it seems now, the last is more likely to occur.
Please, tell me I'm wrong :)

Thank you!

Hello

One of my friends had a similar problem with a DJ controller: Traktor Kontrol S4
There was not a sound, but he noticed a few dropouts stuttering and audio.

The problem was the background processes that were open when you use the controller.
To resolve this problem, it was necessary to disable all possible devices in the device as WLan, LAN, Bluetooth Manager, etc.
In addition, he had to Disable Antivirus software and firewall that was running in the background.

I put t know if it helps you, but I think that its worth a try

Another idea: try to reduce the performance of the processor. This is possible in the Windows 7 power management.
How to manage Windows 7 power management features
http://APS2.toshiba-tro.de/KB0/HTD12017W0001R01.htm

Option CPU power management contains the option called the Maximum processor state
Here you can set it to 90% - 80%

Tags: Toshiba

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