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united-nations/transcription-results

UN Transcription Benchmark Results Evaluation results for speech-to-text systems on UN Security Council and General Assembly meeting recordings, assessed against official UN verbatim records. See united-nations/transcription-corpus for the underlying audio and ground truth data. Metrics WER: Word Error Rate (reference = verbatim record, no normalization) normalized_wer: WER after lowercasing, punctuation removal, and filler word removal CER: Character Error Rate… See the full description on the dataset page: https://huggingface.co/datasets/united-nations/transcription-results.

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UN Transcription Benchmark Results

Evaluation results for speech-to-text systems on UN Security Council and General Assembly meeting recordings, assessed against official UN verbatim records.

See united-nations/transcription-corpus for the underlying audio and ground truth data.

Metrics

  • —WER: Word Error Rate (reference = verbatim record, no normalization)
  • —normalized_wer: WER after lowercasing, punctuation removal, and filler word removal
  • —CER: Character Error Rate (same reference, no normalization)
  • —normalized_cer: CER after normalization

Note: WER of 20–40% is expected for high-quality transcription on these recordings due to the editing gap between live speech and published verbatim records. For Chinese, use CER as the primary metric (Chinese text has no word boundaries).

Providers Evaluated

ProviderModelPricing
assemblyaiAssemblyAI Universal-2 (diarization enabled)~$0.17/hr
azure-openaiAzure OpenAI gpt-4o-transcribe-diarize~$0.36/hr
elevenlabsElevenLabs Scribe v2~$0.40/hr
azure-speechAzure Cognitive Services Speech Batch Transcription~$0.36/hr
geminiGemini 3 Flash (structured diarization via prompt)~$0.01/hr
google-chirpGoogle Cloud Chirp 3 (Speech V2 API)~$0.016/min
groq-whisperWhisper large-v3 (via Groq)~$0.015/min

Schema

ColumnTypeDescription
symbolstringUN document symbol, e.g. S/PV.10100
assetIdstringUN Web TV asset ID
languagestringISO 639-1 code
providerstringTranscription provider name
werfloatWord Error Rate (0–1)
normalized_werfloatNormalized WER (0–1)
cerfloatCharacter Error Rate (0–1)
normalized_cerfloatNormalized CER (0–1)
substitutionsintNumber of word substitutions
insertionsintNumber of word insertions
deletionsintNumber of word deletions
ref_lengthintReference word count
hyp_lengthintHypothesis word count
duration_msintAudio duration in ms
timestampstringISO 8601 evaluation timestamp