windows 8 - Logitech LS21 recognized as 2.0 system?
2014-04
matey
This question already has an answer here:
Bob
I'm going by memory here, so I may be wrong. (z313 as a reference, which is similar enough)
Simply put, with this system the subwoofer is not a separate device from the perspective of the computer. You plug the sub into the main line out/speaker port, and plug the front left and right into the subwoofer. Internally, they pass the lower frequencies to the sub and the higher to the front left/right. All the computer really knows is to send all output (all frequencies) to the line out.
Most modern desktop computers have a separate sub out. Since the sub in this system is not a dedicated device, you should not be using that port.
The drivers for your audio chip (usually onboard, depends on motherboard but usually Realtek - download from motherboard manufacturer website) are what you want to use if you want some finer control.
Questioner
My home office has a loud air conditioner right next to my computer desk. When the air conditioner turns on, I need to increase my computer's volume level in order to hear music and sound effects. But when the air conditioner turns off, the system volume seems very loud.
Adjusting the system volume isn't a big deal, but as it's the 21st century and I have more computing power in my office than NASA did to put people on the moon, it would be nice if the system would automatically adjust as the air conditioner turns on/off. So, does anyone know of any Windows software packages that can automatically adjust the system volume level based upon ambient sound volume?
imoatama
AFAIK there's no software that does this for you. However rolling-your-own solution wouldn't be too hard, and there are a few resources that could help you do it quite easily.
This MSDN entry detailing how to set volume based on ambient noise fits your use case prefectly, and includes some c# code to do it. Unfortunately it targets Pocket PC/.NET Compact Framework, but some of it may be directly portable.
This article covers how to adjust the volume in Vista programatically and includes the code to do it.
Also, AutoIT is a product that provides a scripting language that includes volume control commands. It's possible that if you could find a command line tool to get input from your microphone, that you could combine the two into a 'mash-up' cript that acheives what you want. You could then use windows tasks to set the script to run eg every 2 minutes.
studiohack
I would use noise cancelling headphones. Otherwise I think it is very difficult to achieve.