Hi, I have the problem with my Plantronics GameCom 780 USB headset, that the volume under Linux is much too loud. If I play the Front_Center.wav test sound in a loop using aplay, and adjust the PCM volume control (the only volume control present), I have the following effect: - at 0% (-37 dB gain) there's silence - at 1% (-36 dB gain) it's already as loud as I would set it to for comfortable listening - at 10% (-30 dB gain) it's as loud as I'm willing to use with the headset still on - at 50% (-13 dB gain) the headset can be easily used as desktop speakers - at 100% (0 dB gain) it's really really loud There's also a "Loudness" control in alsamixer, which when enabled, makes things even louder... Interestingly I had basically the same problem under Windows 8 until I installed the Windows 7 driver for the headset provided by Plantronics. Windows 8 had probably used a generic USB audio driver for the headset before and that exhibited exactly the same issue that I have now under Linux. After installing the driver, the volume was behaving normally again, meaning that a much larger range than 0-10% of the volume was usable without risking ear damage. As an aside, in pulseaudio, the volume control behaves differently and everything below 24% (-36.93 dB) is silent. The usable range is 24% to 31% (-30.84 dB). Everything above that is much too loud. I think this is basically the same issue though. Does anyone have an idea what's going wrong here? And maybe also how it could be fixed, as apparently it *can* be fixed in software? I'd also be happy with a config file hack, that somehow scales the volume down and adjusts the reported gain levels so that the volume controls in pulseaudio make sense again. System configuration: Arch Linux x86_64 Kernel 3.7.4-1-ARCH alsa-lib 1.0.26-1 pulseaudio 3.0-2 lsusb output: http://pastebin.com/w8AM6DyC Thanks a lot in advance! Best, Mika Fischer ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_jan _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
