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Audio Transcriber

Speech-to-text with speaker labels

Audio Transcriber converts spoken audio into accurate text with speaker labels, word-level timestamps, and audio event tagging. It supports 99+ languages with automatic detection, making it suitable for meetings, interviews, podcasts, lectures, and any multi-speaker recordings.

Getting clean, structured transcripts normally requires a separate service and manual cleanup. This tool handles language detection, speaker diarization, timestamp granularity, and non-speech event tagging (laughter, applause, music) in a single call. The output includes both a full transcript string and a per-word array with timing and speaker IDs — ready for subtitles, summaries, or further analysis.

What you can do

  • Transcribe any audio file from a URL in 99+ languages with automatic language detection
  • Label different speakers separately (diarization) with or without knowing the speaker count
  • Get word-level or character-level timestamps for subtitle generation
  • Tag non-speech audio events like laughter, applause, and background music
  • Process MP3, WAV, M4A, FLAC, OGG, and other common formats

Who it's for

Podcast producers generating episode transcripts. Journalists and researchers transcribing interviews. Teams needing meeting notes with speaker attribution. Developers building transcription pipelines or subtitle generation workflows.

How to use it

  1. Call transcribe_audio with the URL of your audio file — language auto-detects if you don't specify
  2. Set diarize: true to get separate speaker labels; add num_speakers if you know the count for better accuracy
  3. Set timestamps_granularity: "word" if you need per-word timing for subtitle generation
  4. Enable tag_audio_events: true to capture laughter, applause, music, and other non-speech sounds

Getting started

For noisy recordings, run the audio through Audio Isolator first for cleaner transcription results. Then call transcribe_audio with the cleaned file URL.

Transcribe Audio

Transcribe an audio file from a URL to text using AI speech-to-text. Supports speaker diarization, word-level and character-level timestamps, audio event tagging, and automatic language detection for 99+ languages.

Returns: Full transcription text, word-level timing data with speaker labels, detected language, and confidence scores
List Models

List available models for this tool, sorted by popularity. Returns provider details and pricing.

Returns: List of available models with pricing and provider info
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v0.022026-03-22
  • Added subtitle, expanded description, and agent instructions
v0.012026-03-20
  • Initial release

Connect ToolRouter to use Audio Transcriber in Claude, ChatGPT, Copilot, and more — no code required.

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Frequently Asked Questions

How many languages does it support?

It supports 99+ languages and can auto-detect the language from the audio.

Can I get speaker labels and timestamps?

Yes. Turn on diarization for speakers, and choose word-level timestamps when you need subtitle-style timing.

Can it tag non-speech audio like laughter or applause?

Yes. Enable audio event tagging to capture sounds like laughter, applause, and music.

Should I clean noisy audio first?

If the recording is messy, run it through `audio-isolator` first for better transcription quality.