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AssemblyAI Changelog

Check out the AssemblyAI changelog to see weekly accuracy and product improvements our team has been working on.

Powering incredible companies

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Content Moderation and Topic Detection Available for Portuguese

  • Improved Inverse Text Normalization of money amounts in transcript text.

  • Addressed an issue with Real-Time Transcription that would occasionally cause variance in timestamps over the course of a session.
  • Fixed an edge case with transcripts including Filler Words that would occasionally cause server errors.

1

Automatic Language Detection Available for Dutch and Portuguese

  • Accuracy of the Automatic Language Detection model improved on files with large amounts of silence.
  • Improved speaker segmentation accuracy for Speaker Labels.

1

Dutch and Portuguese Support Released

  • Dutch and Portuguese transcription is now generally available for our /v2/transcript endpoint. See our documentation for more information on specifying a language in your POST request.

1

Content Moderation and Topic Detection Available for French, German, and Spanish

  • Improved redaction accuracy for credit_card_number, credit_card_expiration, and credit_card_cvv policies in our PII Redaction feature.

  • Fixed an edge case that would occasionally affect the capitalization of words in transcripts when disfluencies was set to true.

1

French, German, and Italian Support Released

  • French, German, and Italian transcription is now publicly available. Check out our documentation for more information on Specifying a Language in your POST request.

  • Released v2 of our Spanish model, improving absolute accuracy by ~4%.
  • Automatic Language Detection now supports French, German, and Italian.
  • Reduced the volume of the beep used to redact PII information in redacted audio files.

1

Miscellaneous Bug Fixes

  • Fixed an edge case that would occasionally affect timestamps for a small number of words when disfluencies was set to true.
  • Fixed an edge case where PII audio redaction would occasionally fail when using local files.

1

New Policies Added for PII Redaction and Entity Detection

1

Spanish Language Support, Automatic Language Detection, and Custom Spelling Released

  • Spanish transcription is now publicly available. Check out our documentation for more information on Specifying a Language in your POST request.
  • Automatic Language Detection is now available for our /v2/transcript endpoint. This feature can identify the dominant language that’s spoken in an audio file and route the file to the appropriate model for the detected language.
  • Our new Custom Spelling feature gives you the ability to specify how words are spelled or formatted in the transcript text. For example, Custom Spelling could be used to change all instances "CS 50" to "CS50".

1

Auto Chapters v6 Released

  • Released Auto Chapters v6, improving the summarization of longer chapters.

1

Auto Chapters v5 Released

  • Auto Chapters v5 released, improving headline and gist generation and quote formatting in the summary key.

  • Fixed an edge case in Dual-Channel files where initial words in an audio file would occasionally be missed in the transcription.

1

Regional Spelling Improvements

  • Region-specific spelling improved for en_uk and en_au language codes.
  • Improved the formatting of “MP3” in transcripts.
  • Improved Real-Time transcription error handling for corrupted audio files.

1

Real-Time v3 Released

  • Released v3 of our Real-Time Transcription model, improving overall accuracy by 18% and proper noun recognition by 23% relative to the v2 model.

  • Improved PII Redaction and Entity Detection for CREDIT_CARD_CVV and LOCATION.

1

Auto Chapters v4 Released, Auto Retry Feature Added

  • Added an Auto Retry feature, which automatically retries transcripts that fail with a Server error, developers have been alerted message. This feature is enabled by default. To disable it, visit the Account tab in your Developer Dashboard.

  • Auto Chapters v4 released, improving chapter summarization in the summary key.
  • Added a trailing period for the gist key in the Auto Chapters feature.

1

Auto Chapters v3 Released

  • Released v3 of our Auto Chapters model, improving the model’s ability to segment audio into chapters and chapter boundary detection by 56.3%.
  • Improved formatting for Auto Chapters summaries. The summary, headline, and gist keys now include better punctuation, casing, and text formatting.

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Miscellaneous Bug Fixes

  • Fixed a rare edge case affecting audio duration calculation of a small percentage of multi-channel files that contained no speech.
  • Miscellaneous bug fixes for Real-Time Transcription.