this area of the pulseaudio master volume control corresponds to the PCM range. below this area volume control works fine. so a smaller dBmin value means a larger area in the volume control sliders which is not usable. With the parameters provided i still can use pulseaudio to get full control of the headset volume.Īs a side effect the dB range determines an area below 100% in the volume control sliders of pulseaudio for which the slider has no effect. it only changes the volume in a very small lower spectrum of the headset (which actually corresponds to normal loudness). However, with a max raw value of something like -9100 (instead of 0, which is insanely loud) and a min valeu of -9200, the PCM volume control no longer works i.e. so it was not possible to find a range which delivers a smooth transition from silence to normal loudness. Raw values of about -9100 deliver normal loudness, values at -7000 start getting too loud, values below -9200 are silence. i dont know if some of these devices work correctly. There is something wrong with the firmware of the gamecom 780. With your patch the following heuristic settings deliver a good volume "range" and usable volume control sliders with pulseaudio.
Output of lsusb -v of "Uptech SA110 USB 2.0 Audio Card" Nice to now I am not alone.Patch, volume quirks for plantronics headset I was thinking it might be a problem with We currently have over 100 of these boards spread over three different sites and since all of them are pretty new, I do not think its to do with the boards. As for disabling onbord sound in BIOS, not an obtion since staff members might want to use laptop with out the boards. You still need to re-plug the USB connection before the USB sound kicks in. Even though the Promethean USB sound is set as the defualt. Yes, I have tried disabling the onboard speakers for the laptops but all that does is when the user logs on, no sound device is connected. We just had the pen electronics and USB hub changed on a new 300 Pro due to a total failure of interactivity. Failing that, there may be an issue with the board. Unless the USB ports aren't being enumerated properly when the PC boots, it should force the board to be the sound ouput as it's the only one available. Have you tried disabling that? Certainly it can be disabled in Device Manager, but there may be a BIOS option too. You say you've set the Activ speakers as default, implying there is also onboard sound in the PC. I've not found a workaround aside from what you've suggested, but it's not so much of an issue for me. My home headphones do the same thing (Plantronic GameCom 780 USB audio).
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