Hello!

Hi! It looks like the Realtime WebRTC API will accept an empty audio stream. Using the code below, I could connect and send/receive text events. Audio token usage seems to remain `0` (to double-check!). const peerConnection = new RTCPeerConnection(); const dataChannel = peerConnection.createDataChannel('oai-events', { ordered: true, }); // add an empty audio track const audioContext = new AudioContext(); const destination = audioContext.createMediaStreamDestination(); const audioStream = destination.stream; const audioTrack = audioStream.getAudioTracks()[0]; peerConnection.addTrack(audioTrack); const offer = await peerConnection.createOffer(); await peerConnection.setLocalDescription(offer); const sdpResponse = await fetch(/* same arguments */); const answer = { type: 'answer', sdp: await sdpResponse.text(), }; await peerConnection.setRemoteDescription(answer);