How to convert a .DS2 file online
Three steps, all tab.
Open your file
Drop your .DS2 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 .DS2 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 .DS2 file?
Everything worth knowing about Digital Speech Standard Pro (DSS Pro) Audio File.
A DS2 file is a DSS Pro (Digital Speech Standard Pro) audio recording made by an Olympus professional voice recorder. Open it with Olympus DSS Player (free from omsystem.com) or Express Scribe. Standard players like VLC and Windows Media Player lack the DSS Pro codec and cannot play DS2 files.
Programs that open .DS2 files
- Windows
- Bytescribe WavPlayer, Express Scribe Transcription Software, Olympus DSS Player (ODMS R7)
- macOS
- Express Scribe, Olympus ODMS R7 (macOS)
| Full name | Digital Speech Standard Pro (DSS Pro) Audio File |
|---|---|
| Developer | International Voice Association (IVA) — consortium of Olympus, Philips, Grundig Business Systems |
| First released | circa 2003 (DSS Pro / DS2 generation; base DSS from 1994) |
| Category | Audio & Video |
| MIME type | audio/x-ds2 |
Related viewers
Other free tools to open and preview your files.
Is my .DS2 file uploaded to a server?
No. Your .DS2 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.
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