Raymond Yau skrev:
It seem to me that name hint is not suitable for displaying recording devices
But what should I then use? snd_card_xxx will not show the pulse device, snd_names_list is deprecated, and snd_config_xxx is not recommended either.
You can get low latency by using hw device since PA use maximum buffer in order to save power comsumption for those notebook / netbook.
If your application require high quality (bypass any SRC) , you may need to capture using hardware rate and format instead of using plughw
I will not need low latency for this application, but avoiding SRC would probably be a good thing. But I assume the plug handling does not do any SRC if it can avoid it by adjusting the hardware?
For HDA , it support multiple streamming. some HDA codecs (e.g. alc88x and ad198x) have 3 ADC ( which you can capture three stereo streams concurrently from internal mic, external mic and line in )
The main problem of the recording audio application is unable to select the correct mixer control of the three capture sources
What I would like would my enumeration function to return in this case would be four entries, one for each ADC and one for them all combined (6 channels, multi-channel recording).
// David