Abnormal Audio Playing

Application Scenario

• Service scenario: audio playing
• Applicable processor: Atlas 200I/500 A2 inference product
• Processor forms: EP and RC

Symptom

The audio cannot be played normally, and the error code 0xa0168009 is returned.

sample_comm_audio_start_ao: hi_mpi_ao_set_pub_attr(2) failed with 0xa0168009!

Possible Cause

The audio-related .ko driver is not inserted.

Solution

1. Run the lsmod command to check whether the .ko driver is inserted.
2. Run the following command to re-insert the AO-related .ko driver:

   insmod /var/davinci/driver/drv_ao.ko

3. Run the audio playing command again.