9 Mar
2015
9 Mar
'15
9:09 a.m.
Srinivasan S wrote:
Could you please provide any inputs w.r.t the loopback
card using
snd-aloop & alsaloop, how this loopback card can be used to connect
the GSM two way call simultanoeusly to the UDA1345TS codec on MCASP0
of the am335x (UDA1345TS ie., real sound card)
snd-aloop creates a virtual sound card; it is not used with a real sound
card.
The codec has two output channels VOUTL, VOUTR &
two input channels VINL , VINR
With this am able to achieve only one way call at a time by running
only one application at a time
To allow a capture device to be shared, you need to use dsnoop. Your
asound.conf already does this.
To allow a playback device to be shared, you need to use dshare or dmix.
(dshare allows to use _different_ channels; dmix allows mixing multiple
sources into the same channels.) Your asound.conf does not do this; it
uses "hw" instead.
Regards,
Clemens