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If you have multiple channels in your audio stream, specify the count in the configuration: 
{
  "channels": 2
}
Gladia’s real-time API will automatically split the channels and transcribe them separately. For each utterance, you’ll get a channel key corresponding to the channel the utterance came from.
Transcribing an audio stream with multiple channels is billed per channel. For example, an audio stream with 2 channels will be billed as double the audio duration, even if the channels are identical.
For a detailed guide on how to merge multiple audio tracks into a single multi-channel stream and send it over a WebSocket, see the Sending multiple audio tracks over a single WebSocket section.
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