Vietnamese recordings to English speech

A live conversation or a recorded file?

Choose a live interpretation app for a conversation happening now. For a saved Vietnamese voice message, interview or lesson, upload the recording here to create an English voice track. You can listen to a free preview of up to 30 seconds before generating the full file. This page covers the recorded-file workflow.

Tones, diacritics and names

Vietnamese is tonal: a change in tone can change a word's lexical meaning. The written diacritics in a source transcript therefore deserve attention; they are not decoration. If an English sentence seems unrelated to the recording, first ask a Vietnamese reader to check the recognized source word and its tone marks.

For family interviews, lessons and voice messages, review personal names and place names carefully. Keep the intended spelling consistent in the English script, and avoid silently replacing an unfamiliar name with a more familiar word. The preview helps you decide whether the recording is clear enough to proceed, but it cannot establish the accuracy of every passage later in the file.

Use a recording with audible speech and review sections containing background music or people talking over each other. This is a practical quality check, not a claim that the tool can reconstruct a lost tone from noisy audio. After the full dub, compare the source and English sentences and listen to the generated voice before sharing. If the intended word remains uncertain, consult the speaker or a fluent reviewer instead of guessing from the English output. Inspect the Vietnamese and English subtitle downloads separately as well.

Language background: Cal State Fullerton introduction to Vietnamese tones.

How to translate the recording

1. Upload a file you have permission to use. MP3, WAV and M4A audio or MP4, MOV and WebM video, up to 200 MiB and 10 minutes.
2. Try the English preview. English is preselected. The source language is detected automatically; the preview covers up to 30 seconds and uses no credits.
3. Generate and review the full dub. Compare the source and English sentences, then edit translated names, terms or phrasing where needed. Only edited sentences are regenerated.
4. Download the result. Get English audio mixed with the background, voice-only audio and separate source/English SRT and VTT files. Video uploads can also produce dubbed video; audio uploads do not create video.

Voices, background and timing

Stock voices are assigned by detected speaker, with reuse if the voice catalogue is exhausted. Optional cloning requires your consent and a single identified speaker with at least 10 seconds of usable sample speech. Multiple speakers or insufficient sample speech fall back to stock voices. Review the preview and the full recording before sharing.

The translated speech is mixed with the separated background. Separation can leave artifacts, and timing adaptation cannot guarantee exact alignment for short or overlapping lines. Listen to sentence transitions and check that the English remains understandable at the resulting pace.

Related recordings, pricing and permissions

The audio translator explains the general file workflow. The Spanish recording guide covers another source language; the related guides below cover the other audio pairs.

Check the credit quote before full generation; charges depend on source duration and target languages. See pricing. Upload only recordings you own or have rights to use, including the voices, music and images. AI transcription, translation and pronunciation can contain mistakes, so review the result before publishing. See the terms. This tool processes recordings, not live calls.