convert.expressTranscribe Cantonese Audio or Video to Text
Upload any Cantonese recording — MAI-Transcribe 2 detects the language automatically and returns an accurate transcript in seconds.
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MP3, WAV, M4A, AAC, OGG, FLAC, Opus, WMA, AMR · MP4, MOV, MKV, WebM, AVI, M4V · up to 2 GB
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YouTube, Simplecast, Dropbox, Google Drive, or any direct MP3/MP4 link
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Transcript style
Removes fillers and false starts for readable text
Names, acronyms, or domain terms that improve accuracy
MP3, WAV, M4A, AAC, OGG, FLAC, Opus, WMA, AMR · MP4, MOV, MKV, WebM, AVI, M4V · up to 2 GB · 10 free minutes every day
About Cantonese transcription
Spoken across Hong Kong, Macau, and Guangdong province, Cantonese sits within the Sino-Tibetan language family but is a fully distinct language from Mandarin — not a dialect of it — with its own phonology, vocabulary, and writing conventions. Where Mandarin uses four tones, Cantonese has six to nine phonemic tones depending on how you count them, and that density creates real ambiguity for any speech recognition system trying to map a spoken syllable to the correct character. Add the fact that Cantonese writing uses Chinese characters including Cantonese-specific ones absent from Mandarin texts, and the output layer becomes more complex than many other Chinese-language transcription tasks. Colloquial Cantonese speech also frequently mixes these native characters with Mandarin-standard forms in ways that do not follow a single stable convention. Transcription accuracy for Cantonese on convert.express is rated medium, reflecting this combination of tonal complexity and script variation rather than any single bottleneck.
MAI-Transcribe 2 and Gemini 3.5 Transcribe both support Cantonese, detected automatically from the audio — no manual language selection is needed. OpenAI Whisper does not support this language. Upload any Cantonese recording up to 2 GB — MP3, WAV, M4A, AAC, OGG, FLAC, MP4, MOV, MKV, WebM and other common audio and video formats are accepted. Anyone gets 10 free minutes of transcription per day, no account needed; longer files are billed at €0.02 per minute (€0.50 minimum for a card payment, none from a prepaid balance). Transcripts download as TXT, PDF, SRT or VTT and are deleted automatically within 24 hours.
Available transcription models
10 min
Free every day
€0.02
Per minute beyond quota
< 1 min
Typical turnaround
Tips for the best results
- Use a quiet environment — background noise is the biggest source of transcription errors.
- Speak at a natural pace; extremely fast speech reduces accuracy in any language.
- MP3 or M4A files work great; uncompressed WAV is ideal for professional recordings.
- Files up to 2 GB are supported — long recordings are automatically split and merged.
Frequently asked questions
- How accurate is AI transcription for Cantonese?
- Cantonese transcription on convert.express is rated medium accuracy. The core difficulty comes from the language’s tonal system — six to nine phonemic tones compared to Mandarin’s four — which increases the chance of a spoken syllable being mapped to the wrong character. Cantonese also uses characters specific to its own writing tradition, distinct from standard Mandarin orthography, so the character-selection problem is broader than for many other Chinese-language inputs. Recordings with overlapping speakers or heavy code-switching between Cantonese and English tend to see the sharpest accuracy drop.
- How long does Cantonese transcription take?
- Most Cantonese recordings are ready in under a minute. Processing time scales with file length — a 10-minute recording typically returns results in 20–40 seconds, and a one-hour recording in around 4–6 minutes. Longer files are automatically split, transcribed in parallel, and merged, so you never need to cut your audio before uploading.
- Can I translate Cantonese audio to English or other languages?
- Yes. Single-pass translation to English is a Whisper feature, and Whisper does not support Cantonese — MAI-Transcribe 2 and Gemini 3.5 Transcribe transcribe Cantonese audio to Cantonese text instead. Once the transcript is ready you can translate it into English, or any of 103 languages, with the Translate action on the finished job. It's powered by Claude AI and also works on the subtitles, summary and action list, not just the raw transcript.
- Which transcription model should I use for Cantonese?
- MAI-Transcribe 2 and Gemini 3.5 Transcribe both support Cantonese. MAI-Transcribe 2 is the default and in preview, with word-level timestamps, clean or verbatim styles, and vocabulary hints for proper names and terminology. Gemini 3.5 Transcribe is in preview and has the widest language coverage. OpenAI Whisper does not support Cantonese. Try them on a short clip to see which output suits your recording.
- What audio and video formats are supported?
- Audio: MP3, WAV, M4A, AAC, OGG, FLAC, Opus, WMA and AMR. Video: MP4, MOV, MKV, WebM, AVI and M4V. Files up to 2 GB can be uploaded. The language is detected automatically from the audio — no manual language selection is needed.
粵語 · convert.express
粵語係香港、澳門同廣東省嘅主要語言，屬漢藏語系，但同普通話係兩種截然不同嘅語言，並非普通話嘅方言——有自己獨立嘅音韻系統、詞彙同書寫習慣。普通話得四個聲調，粵語就有六至九個音位聲調（視乎點計），聲調密度咁高，令語音識別系統喺將音節對應到正確漢字時面臨相當大嘅挑戰。加上粵語書寫會用到部分普通話文本唔會出現嘅粵語專用字，令輸出層面比好多其他中文轉錄任務更加複雜。日常口語粵語仲經常將粵語本字同普通話標準字混用，而且冇一套統一穩定嘅規範可循。convert.express 對粵語嘅轉錄準確度評級為「中等」，反映嘅係聲調複雜性加上字形變化帶來嘅綜合難度，並唔係某單一瓶頸造成。MAI-Transcribe 2 同 Gemini 3.5 Transcribe 均支援粵語，系統會自動從音頻偵測語言，毋須手動揀選。OpenAI Whisper 則唔支援粵語。粵語錄音最大可上傳 2 GB，接受格式包括 MP3、WAV、M4A、AAC、OGG、FLAC、MP4、MOV、MKV、WebM 及其他常見音視頻格式。每人每日可免費轉錄 10 minutes，毋須註冊帳號；較長嘅檔案收費為每分鐘 €0.02（信用卡付款最低消費 €0.50，預付餘額則無此限制）。轉錄文本可下載為 TXT、PDF、SRT 或 VTT 格式，並於 24 小時內自動刪除。
- AI 轉錄粵語嘅準確度有幾高？
- convert.express 對粵語轉錄嘅準確度評級為中等。核心難點在於粵語嘅聲調系統——有六至九個音位聲調，比普通話嘅四個多得多——令音節被對應到錯誤漢字嘅機率大增。粵語亦有自己獨特書寫傳統嘅專用字，有別於普通話標準正字法，所以揀字問題比好多其他中文輸入都更加複雜。如果錄音中有多人同時說話，或者粵英夾雜情況嚴重，準確度通常會跌得最明顯。
- 粵語轉錄要幾耐？
- 大部分粵語錄音都可以喺一分鐘內完成。處理時間會隨檔案長度而增加——一段 10 minutes 嘅錄音通常 20–40 秒出結果，一小時嘅錄音大概需要 4–6 minutes。較長嘅檔案會自動分段、平行轉錄再合併，所以上傳前完全唔需要自己剪片。
- 我可以將粵語音頻翻譯成英文或其他語言嗎？
- 可以。單步翻譯成英文係 Whisper 嘅功能，但 Whisper 唔支援粵語——MAI-Transcribe 2 同 Gemini 3.5 Transcribe 會將粵語音頻轉錄成粵語文字。轉錄完成後，你可以用已完成任務上嘅「翻譯」功能，將文本翻譯成英文或其他共 103 種語言。呢個功能由 Claude AI 驅動，唔單止適用於原始文字稿，字幕、摘要同行動清單同樣支援。
- 轉錄粵語應該用邊個模型？
- MAI-Transcribe 2 同 Gemini 3.5 Transcribe 都支援粵語。MAI-Transcribe 2 係預設模型，目前處於預覽階段，提供字級時間戳、精簡或逐字兩種風格，以及專有名詞同術語嘅詞彙提示功能。Gemini 3.5 Transcribe 同樣係預覽版，語言覆蓋範圍最廣。OpenAI Whisper 唔支援粵語。建議用一小段錄音試試兩款模型，睇下邊個輸出結果更適合你嘅錄音。
- 支援咩音頻同視頻格式？
- 音頻格式：MP3、WAV、M4A、AAC、OGG、FLAC、Opus、WMA 同 AMR。視頻格式：MP4、MOV、MKV、WebM、AVI 同 M4V。最大可上傳 2 GB 嘅檔案。系統會自動從音頻偵測語言，毋須手動揀選。