I'm here to help you receive audio in μ-law 8000 format in a LiveKit agent and convert it to PCM. Let's walk through the steps together: 1. First, please make sure that the incoming audio stream is using the PCMU/8000 codec. 2. Next, you can use the

DecodeULaw

function from the

media-sdk

package to decode the μ-law audio into PCM16 format. Here's a simple example to guide you:

// Create a PCM16Writer (e.g., your agent's audio processor or sink)
pcmWriter := yourPcm16Writer

// Wrap it with DecodeULaw to create a ULawWriter
ulawWriter := DecodeULaw(pcmWriter)

// Write μ-law samples directly to ulawWriter
err := ulawWriter.WriteSample(ULawSample{0x83, 0x87, 0x96, ...})
if err != nil {
    log.Fatal(err)
}

1. If you encounter any sample rate mismatches, no worries! You can handle them using the built-in resampling feature of

DecodeULaw

. 2. Also, please double-check that your upstream components or plugins provide μ-law 8000 audio. Plugins like Uplift AI TTS and Speechmatics are great examples that support μ-law encoding. This approach is a reliable and efficient way to convert μ-law audio to PCM16 format, making it perfect for real-time audio processing. If you have any questions or need further assistance, feel free to ask—I'm here to help! Sources: g711/g711.go | livekit-plugins/livekit-plugins-lmnt/livekit/plugins/lmnt/models.py