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CC2642R: BLE Audio PHY modes and AEC

Joe G.
Mastermind 25886 points
Part Number: CC2642R

Just got the BLE Audio examples for CC2642R running from https://github.com/ti-simplelink/ble_examples/blob/master/examples/rtos/CC26X2R1_LAUNCHXL/ble5apps/central_bidirectional_audio/readme.md

Nice user interface for switching PHY's and audio I/O.  But 2 questions:

1. Don't see a PHY option for LE Coded S=8. Is there a way to get longer range even potentially sacrificing audio quality?

2. Since bidirectional audio, have we looked at AEC (Acoustic Echo Cancellation)? Even 3rd party?

(Since the CC2642R1 has a Cortex-M4F with 32-bit single-precision floating point, you would think it  should do a good job with AEC. .

3. Could we do 1 or 2. by making unidirectional?

  • 0
    TI__Mastermind 33460 points

    Hi Joe,

    1. With the demo as is, it is not possible to use S=8 as the bitrate is too high for this PHY. This would

    Be possible for unidirectional or perhaps bidirectional for a codec like OPUS (yet to be tested)

    2. I’ll need to check with the systems team wrt to engagements. We don’t have anything developed by the apps team. Well take this offline

    3. I don’t know about #2, but #1 yes