[alsa-devel] volume scaling of usb audio class headset
Hello everybody,
I got a question, I got a few usb headsets that seem to apply to the usb audio class and the volume scale is way to big with alsa. with the control on 10 of the 100 you are almost getting deaf. So my question is how does alsa make an scaling for such devices and how to fix it so that the full range can be used in a normal volume spectrum.
Thank in advance,
Jelle
There is a *huge* (83 replies) thread in the alsa-devel ML archives about this problem. Lennart Poettering raised the issue regarding his Logitech external USB speakers.
http://article.gmane.org/gmane.linux.alsa.devel/52524
Sort through the replies to see if you can make any sense out of the workarounds, patches, and so on that resulted from this discussion. If possible, try the latest GIT alsa-driver and alsa-lib.
Sean
On Fri, Oct 24, 2008 at 1:35 PM, Jelle de Jong jelledejong@powercraft.nl wrote:
Hello everybody,
I got a question, I got a few usb headsets that seem to apply to the usb audio class and the volume scale is way to big with alsa. with the control on 10 of the 100 you are almost getting deaf. So my question is how does alsa make an scaling for such devices and how to fix it so that the full range can be used in a normal volume spectrum.
Thank in advance,
Jelle _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
Sean McNamara wrote:
There is a *huge* (83 replies) thread in the alsa-devel ML archives about this problem. Lennart Poettering raised the issue regarding his Logitech external USB speakers.
http://article.gmane.org/gmane.linux.alsa.devel/52524
Sort through the replies to see if you can make any sense out of the workarounds, patches, and so on that resulted from this discussion. If possible, try the latest GIT alsa-driver and alsa-lib.
Sean
On Fri, Oct 24, 2008 at 1:35 PM, Jelle de Jong jelledejong@powercraft.nl wrote:
Hello everybody,
I got a question, I got a few usb headsets that seem to apply to the usb audio class and the volume scale is way to big with alsa. with the control on 10 of the 100 you are almost getting deaf. So my question is how does alsa make an scaling for such devices and how to fix it so that the full range can be used in a normal volume spectrum.
Thank in advance,
Jelle
Thank you Sean for responding to the question, it seems I was not the only one with this issue. I got one more following question, which usb headset and usb audio adapters can I buy right now that are not effected by this issue? Or should I just wait until the upcoming releases that will hopefully fix the problem for all usb audio devices, or is this false hope?
Best regards,
Jelle
I've had success with Plantronics headsets. In particular, the Plantronics DSP-500 works well. I've tested it with numerous ALSA releases, from 1.0.14 - 1.0.17 and some post-1.0.17 GIT builds. I've never had a mixer problem with it.
This is just *me* speaking, of course, not alsa-project... any implied endorsement is my personal one alone ;-)
Sean
On Sat, Oct 25, 2008 at 5:16 AM, Jelle de Jong jelledejong@powercraft.nl wrote:
Sean McNamara wrote:
There is a *huge* (83 replies) thread in the alsa-devel ML archives about this problem. Lennart Poettering raised the issue regarding his Logitech external USB speakers.
http://article.gmane.org/gmane.linux.alsa.devel/52524
Sort through the replies to see if you can make any sense out of the workarounds, patches, and so on that resulted from this discussion. If possible, try the latest GIT alsa-driver and alsa-lib.
Sean
On Fri, Oct 24, 2008 at 1:35 PM, Jelle de Jong jelledejong@powercraft.nl wrote:
Hello everybody,
I got a question, I got a few usb headsets that seem to apply to the usb audio class and the volume scale is way to big with alsa. with the control on 10 of the 100 you are almost getting deaf. So my question is how does alsa make an scaling for such devices and how to fix it so that the full range can be used in a normal volume spectrum.
Thank in advance,
Jelle
Thank you Sean for responding to the question, it seems I was not the only one with this issue. I got one more following question, which usb headset and usb audio adapters can I buy right now that are not effected by this issue? Or should I just wait until the upcoming releases that will hopefully fix the problem for all usb audio devices, or is this false hope?
Best regards,
Jelle
Sean McNamara wrote:
I've had success with Plantronics headsets. In particular, the Plantronics DSP-500 works well. I've tested it with numerous ALSA releases, from 1.0.14 - 1.0.17 and some post-1.0.17 GIT builds. I've never had a mixer problem with it.
This is just *me* speaking, of course, not alsa-project... any implied endorsement is my personal one alone ;-)
Sean
Thank you for you comments, anybody else got experiences with other usb headsets?
Hmmm, I got some Plantronics USB .Audio 510 Headsets and they are kind of bad. They have wrong dB initialization, incorrect bandwidth allocation when connected to usb hubs but this can also be an kernel usb-audio and/or usbcore bug. And are build out of 3 usb interfaces, 2x usb audio and one hid device (speakers, mic, and not functional uinput keypad)
I think I will see if I can get my hands on some Plantronics or Logitech usb headset.
Kind regards,
Jelle
On Sat, Oct 25, 2008 at 5:16 AM, Jelle de Jong jelledejong@powercraft.nl wrote:
Sean McNamara wrote:
There is a *huge* (83 replies) thread in the alsa-devel ML archives about this problem. Lennart Poettering raised the issue regarding his Logitech external USB speakers.
http://article.gmane.org/gmane.linux.alsa.devel/52524
Sort through the replies to see if you can make any sense out of the workarounds, patches, and so on that resulted from this discussion. If possible, try the latest GIT alsa-driver and alsa-lib.
Sean
On Fri, Oct 24, 2008 at 1:35 PM, Jelle de Jong jelledejong@powercraft.nl wrote:
Hello everybody,
I got a question, I got a few usb headsets that seem to apply to the usb audio class and the volume scale is way to big with alsa. with the control on 10 of the 100 you are almost getting deaf. So my question is how does alsa make an scaling for such devices and how to fix it so that the full range can be used in a normal volume spectrum.
Thank in advance,
Jelle
Thank you Sean for responding to the question, it seems I was not the only one with this issue. I got one more following question, which usb headset and usb audio adapters can I buy right now that are not effected by this issue? Or should I just wait until the upcoming releases that will hopefully fix the problem for all usb audio devices, or is this false hope?
Best regards,
Jelle
participants (2)
-
Jelle de Jong -
Sean McNamara