How to convert a .DVF file online
Three steps, all tab.
Open your file
Drop your .DVF file and every video, audio and subtitle track inside is listed with its codec, resolution, frame rate and language.
Preview
See frames from across your .DVF file before you convert, even when your browser can't play the codec inside.
Convert
Pick MP4, WEBM or MP3, or repack to MKV without re-encoding. Play the result right here, then download it.
What is a .DVF file?
Everything worth knowing about Sony Digital Voice File.
A DVF file is a compressed voice recording made by an older Sony ICD-series digital voice recorder. Most media players cannot play it because it uses a proprietary Sony codec. The practical solution is to convert the DVF to MP3 or WAV with NCH Switch Audio Converter, then play the result anywhere.
Programs that open .DVF files
- Windows
- Sony Digital Voice Editor (legacy), Switch Audio File Converter (NCH)
| Full name | Sony Digital Voice File |
|---|---|
| Developer | Sony Corporation |
| First released | Sony ICD-series IC recorders / Digital Voice Editor era (early 2000s) |
| Category | Audio & Video |
| MIME type | audio/x-dvf |
Related viewers
Other free tools to open and preview your files.
Is my .DVF file uploaded to a server?
No. Your .DVF file is converted for you. The converted file is created in memory,.
Why is conversion slower than desktop software?
Browsers give web pages a single CPU core for this kind of work and no hardware video encoder. Short clips convert in seconds; for long 4K films a desktop app like HandBrake is faster. Use Start and Length to convert just the part you need.
Which output format should I pick?
MP4 plays on every phone, TV and browser. WEBM is an open format that's great for the web. MP3 keeps only the sound. MKV (no re-encode) is instant and lossless, but only changes the container.
Can I keep all audio tracks and subtitles?
The MKV (no re-encode) option copies every track as-is. MP4 and WEBM keep the first video and audio track, which is what most players use.
Why can't some files be converted?
Files protected with DRM (for example purchased iTunes .m4p songs or some .wmv rentals) are encrypted. We can show what's inside, but nobody can convert them without the key.
Was this tool helpful?
Your rating helps us decide which tools to improve next.