BT Audio Sink

[TheOldPresbyope]

Possibly the 48K format that Echo is sending might be whatscausing no audio output from the Linux BT stack. I always thought that BT was limited to 44.1K.

If the stack is barfing on 48K there should be log errors somewhere.

This is Echo ---> moOde right?

Quoting from the A2DP specification (SNK = sink; SRC = source)

Table 4.2 shows the value of Sampling Frequency field for SBC. For the decoder in the
SNK the sampling frequencies 44.1 kHz and 48 kHz are mandatory to support. The
encoder in the SRC shall support at least one of the sampling frequencies of 44.1 kHz
and 48 kHz.

IIRC, a big source of 48kHz sampled audio is TV.

and, yes, here the Echo is both the initiator of the connection (AVDTP) and the source of the media stream (A2DP).