FireRedAudio: The All-in-One 9B Audio Model for ASR, TTS, and Understanding

FireRedAudio Hands-On: A Unified Audio Language Model for ASR, TTS, Editing, and Understanding Last month, I spent over three hours wrestling with a 40-minute interview recording. The workflow was standard but painful: run ASR to get a rough transcript, manually stitch timestamps to the content, switch to a standalone TTS model for voice cloning to re-record sections ruined by background noise, and then piece everything back together. FireRedAudio, recently open-sourced by the FireRed Team (affiliated with Xiaohongshu), collapses that entire pipeline into a single model. It shares a 9B-parameter LLM backbone across all tasks, using an Audio Encoder for understanding …