For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
PlaygroundChangelogSign In
OverviewAPI ReferencePre-recorded STTStreaming STTVoice AgentsSpeech UnderstandingGuardrailsLLM GatewayFAQ
OverviewAPI ReferencePre-recorded STTStreaming STTVoice AgentsSpeech UnderstandingGuardrailsLLM GatewayFAQ
  • Getting started
    • Transcribe a pre-recorded audio file
    • Model selection
    • View model benchmarks
    • Evaluate model accuracy
    • Cloud endpoints & data residency
    • Manage concurrent requests
    • Webhooks
  • Models
    • Medical Mode
  • Features
    • Boost specific terms
    • Label speakers
    • Transcribe multiple audio channels
    • Transcribe audio with mixed languages
    • Correct spelling of terms
    • Include filler words
    • Search for words in transcript
    • Set the start and end of the transcript
  • Guides
LogoLogo
PlaygroundChangelogSign In
Features

Set the Start and End of the Transcript

Was this page helpful?
Previous

Transcript Status

Next
Built with

If you only want to transcribe a portion of your file, you can set the audio_start_from and the audio_end_at parameters in your transcription config.

1import assemblyai as aai
2
3aai.settings.api_key = "<YOUR_API_KEY>"
4
5# audio_file = "./local_file.mp3"
6audio_file = "https://assembly.ai/wildfires.mp3"
7
8config = aai.TranscriptionConfig(
9 audio_start_from=5000, # The start time of the transcription in milliseconds
10 audio_end_at=15000 # The end time of the transcription in milliseconds
11)
12
13transcript = aai.Transcriber(config=config).transcribe(audio_file)
14
15if transcript.status == "error":
16 raise RuntimeError(f"Transcription failed: {transcript.error}")
17
18print(transcript.text)