is this right? vvm.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 16 bit, mono 16000 Hz

cc: @Kings_big💫

Yes, but ensure the file is in raw PCM format without any additional headers, as Vapi requires raw PCM (pcm_s16le) audio .

still no luck

@dc1011. Can you write a small paragraph for me saying what you are trying to get done followed by what steps you have taken until now to solve it. This way I can understand your usage and the steps you have taken to achieve it, and then I can either suggest you something new or upgrade on any of your tried workarounds. Thanks for the pay for the patience.

Okay so i recorded the audio on quicktime player and saved as an m4a. Then converted to raw pcm using ffmpeg. /Users/xxxxx/Downloads/ffmpeg -i WaicoVM.m4a -ar 16000 -ac 1 -c:a pcm_s16le -f s16le -map_metadata -1 WaicoVM.raw Then converted to wav: /Users/xxxxx/Downloads/ffmpeg -i WaicoVM.m4a -ar 16000 -ac 1 -c:a pcm_s16le -map_metadata -1 -f wav -write_bext 0 -rf64 never WaicoVM_minimal.wav Then Checked info: afinfo ~/Desktop/WaicoVM_minimal.wav Output: File: /Users/xxxx/Desktop/WaicoVM_minimal.wav File type ID: WAVE Num Tracks: 1 ---- Data format: 1 ch, 16000 Hz, Int16 no channel layout. estimated duration: 7.243188 sec audio bytes: 231782 audio packets: 115891 bit rate: 256000 bits per second packet size upper bound: 2 maximum packet size: 2 audio data file offset: 78 optimized source bit depth: I16 ---- Then uploaded the file to amazon s3 and copied the link into the first message section of my agent. The file plays sped up on the web browser the first time, and at a normal speed the first time I call. The audio plays slowed down when I called on the linked phone number regardless of how many times I called. Thanks for all your help, Im sure theres something Im missing. Cheers

@dc1011. can you share the call_id?

d35d99e6-ff94-4232-b27f-93016ee333cc

I'm having the same problem too. Here's a call ID for me 93a83458-8e0a-45a2-ba5f-7b130c21f166

any luck?