There is no SendVoice option in telegram. There is already an open pull request for that feat(Telegram Node) add action for sending Voice messages by rqtqp · Pull Request #13497 · n8n-io/n8n · GitHub, but it has conflicts
My use case:
I’m doing AI coach automation, and I want to send a generated audio in telegram-native format. Audio doesn’t work for me. The voice looks diffrent and its more appropriate in my case