On Tue, 2017-09-05 at 19:25 +0200, Joakim Tjernlund wrote: > When starting a audio chat I often have problems with my microphon and recenly I > found that the sample rate is different for in and out: > # > cat /proc/asound/card1/stream0 > Logitech Inc Logitech Stereo H650e at usb-0000:00:1d.0-1.7, full speed : USB Audio > > Playback: > Status: Running > Interface = 2 > Altset = 1 > Packet Size = 192 > Momentary freq = 48000 Hz (0x30.0000) > Interface 2 > Altset 1 > Format: S16_LE > Channels: 2 > Endpoint: 1 OUT (ADAPTIVE) > Rates: 8000, 16000, 24000, 32000, 44100, 48000 > > Capture: > Status: Running > Interface = 1 > Altset = 1 > Packet Size = 200 > Momentary freq = 44100 Hz (0x2c.199a) > Interface 1 > Altset 1 > Format: S16_LE > Channels: 2 > Endpoint: 1 IN (ASYNC) > Rates: 8000, 16000, 24000, 32000, 44100, 48000 > > This seems odd to me. Adding some debug to kernel I see: > [ 129.858365] usb 1-2: 1:1: setting freq 44100 to ep 0x81 > [ 129.860514] usb 1-2: 1:1: setting freq 44100 to ep 0x81 > [ 131.884314] usb 1-2: 2:1: setting freq 44100 to ep 0x1 > [ 131.886567] usb 1-2: 2:1: setting freq 44100 to ep 0x1 > [ 131.898714] usb 1-2: 2:1: setting freq 48000 to ep 0x1 > [ 131.900847] usb 1-2: 2:1: setting freq 48000 to ep 0x1 > > > Is this expected or should I try make both the same? > > Jocke Ping? _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
