Audio Cues not working

[jp-hoehmann]

The SDK expects several files containing audio cues to be available and errors when they aren't (see logs). I have provided audio cues and they get parsed without error, but no audio cues are audible (and there is no further instructions in the documentation).

To Reproduce

1. From the demo app
2. Run the demo app
3. Join a meeting
4. Observe error output reproduced below
5. Add WAV files with the below names to the project (location doesn't matter).
6. Add the files to the target
7. Make sure the files are copied into the bundle as part of the “Copy Bundle Resources” build step
8. Run the app
9. Join a meeting
10. Observe Failure

Expected behavior

The audio cues get played at the correct times throughout the meeting lifecycle.

Observed behavior

The files evidently get parsed and the errors disappear, but the files are seemingly never used for anything.

Logs

[ERROR] MeetingModel - audio cues: others_joined.wav err: 7
[ERROR] MeetingModel - audio cues: others_left.wav err: 7
[ERROR] MeetingModel - audio cues: reconnecting.wav err: 7
[ERROR] MeetingModel - audio cues: reconnected.wav err: 7
[ERROR] MeetingModel - audio cues: reconnect_failed.wav err: 7
[ERROR] MeetingModel - audio cues: rumble_strips.wav err: 7
[ERROR] MeetingModel - audio cues: first_caller.wav err: 7
[ERROR] MeetingModel - audio cues: remote_muted.wav err: 7
[ERROR] MeetingModel - audio cues: call_waiting.wav err: 7
[ERROR] MeetingModel - audio cues: ring_back.wav err: 7
[ERROR] MeetingModel - audio cues: first_caller_beep.wav err: 7
[ERROR] MeetingModel - audio cues: welcome.wav err: 7

Test environment Info

• Device: iPhone13,1
• OS: 16.5
• Version AmazonChimeSDK: 0.23.1
• Version AmazonChimeSDKMedia: 0.18.1
• Can you reproduce this in the demo app? Yes

Additional context

The WAV-files I tried are RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono. I have tried both 44100 Hz and 48000 Hz sample rate. The WAV files need to be mono (adding stereo WAV files will result in an error, confirming that the files are actually parsed) and may not have any RIFF chunks before the fmt chunk (many applications add a JUNK chunk for alignment, which is allowed in the spec, but trips up whatever amazon-chime-sdk-ios uses internally to parse these files).

[hokyungh]

Thanks for reporting. These are benign messages, but definitely looks like an error that needs to be removed from the code. I'll mark it as bug.