White noise Why do my speakers produce a constant stream of white noise at a considerable level? the audibility of the noise is constant at all volumes but really messes with the sound purity when at mid to low volume. can this be fixed?

is it a hissing?

Hello
Have you trioed the TV input as PCM

If you're on Vista/Windows 7, follow these instructions to enable Loudness Equalization. This significantly boosted the volume of my laptop speakers.
Start Menu -> Control Panel -> Hardware and Sound -> Sound
Double click on your default sound device (it will have a green check on its icon). Go to the Enhancements tab. Check Loudness Equalization, and hit apply. That should boost up any super-quiet noises.

There is not enough info here to provide a complete answer, but let me give you some background:

There will always be some hiss. This is due to general amplification where a small amount of noise is amplified along with the general signal. In most cases, the signal is strong enough to overpower any noise that is present (vocals in your example). This noise should not be that noticable in normal cases. If there is an automatic gain control in the line, this could account for it as with "silent" times, the gain will automatically be increased potentially to the degree where the noise is noticable.

Barring that scenerio, if the input signal is too low, the overall gain necessary to produce reasonable volume at the speakers will also be such that the noise is noticable. In order to track this down, please provide details about the current setup including:

1) Microphone make and model being used
2) Input being used on the mixer
3) Gain level being used for the mic channel
4) Gain level being used at the master level.

Dan

Hi there,
we need to do a little bit of fault finding here to narrow down where it's coming from or what is at fault.
First try physically swopping the speakers over and reconnecting (do not just switch the cables at the back of the amp). Is the sound still coming from the same side or has it swopped over? If it's swopped over, it's a speaker issue and needs replacing.
Ok, if the strange sound is still happening from the same side, have a look along the speakers cable path. Is the cable running along side any power cables or extension leads or is it near any wall warts or mains transformers (the type you get with mobile phones, keyboards, answer machines,etc). If so, move the speaker cable a considerable distance away from these. Now, has it stopped or the noise reduced?
If we are still not getting anywhere, see if you can try your speakers on a friend's system and/or try someone else's speakers you know to work on yours.
If his/her speakers are noisy on yours, firstly you have to consider that most sytems at very high volume will produce some noise, but if it's actually quite a loud audible noise that's relatively new to the system, you need to get the amplifer serviced.

Hope this helps

Good luck

Right-click on the speaker icon in the lower right of your screen and choose Open Volume Control and check all volume levels (make sure they are not set to high). If this doesnt work then when you right-click, choose Adjust Audio Properties and search around for volume controls (maybe try the Speaker Volume button).

Your Aiwa speakers are passive units and need considerable power to drive them to a reasonable volume level, comparative to the output of a PC.

The sound card of a PC produces a reasonable quality output but in the terms of power is a very modest output which is why the usual speakers used with a PC are active types - i.e. have a self contained power amplifier, usually driven by a remote power supply.
This type of active speaker is designed to connect via the headphone/speaker socket and still produce a good quality sound. This is possible as the speaker's internal amplifier is built with a particularly low impedance input that matches the low output impedance of the PC headphone output that would be unsuited to be connected to the average hifi amplifier.

Many PC sound cards have a Line Out socket that would be suitable for connection to many hifi amplifiers.

If this is a high-pitched tone it probaly is from the DC-AC inverter that provides the high voltage to light up the front panel. Normally, this is barely audible, but I've seen a few that are loud enough to be annoying. It may be possible to install a small filter in the power line to the inverter, inside the radio. I've never tried this but if the inverter is the source of the noise, this will be the most practical way to isolate ite & eliminate the problem.
This should onlty be attempted byan experienced CB technician.

There is a problem wwith teh power supply or the amp section. Does the noise remain constant or does it vary in volume? The sub should have a level control, does the noise vary with that control?
Dan

a similar problem was discussed here a while ago, ill quote from there: "This problem may occur when some TV's are connected to a volume control converter. To correct this, decrease the TV's volume until the buzz disappears. Now use the decoder/converter volume control and increase the sound to a comfortable listening level." hope it will help.