{
 "id": "dss-pro",
 "name": "DSS Pro",
 "category": "audio",
 "identifiers": {
  "extensions": [
   "ds2"
  ],
  "puid": [
   "fmt/1008"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "03647332",
    "notes": "Digital Speech Standard DSS Pro"
   }
  ],
  "signatures": [
   {
    "name": "Digital Speech Standard DSS Pro",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "03647332"
     }
    ]
   }
  ]
 },
 "status": "unknown",
 "summary": "Digital Speech Standard is a proprietary audio file format for the storage of digital speech recordings, which was jointly developed and introduced by Olympus, Grundig and Philips. The DSS Pro (.ds2) format supports improved sound quality over the original Digital Speech Standard format, and also supports file encryption.",
 "projects": [
  {
   "name": "PRONOM fmt/1008",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/1008",
   "kind": "format-doc"
  }
 ],
 "provenance": {
  "sources": [
   "pronom"
  ]
 },
 "updated": "2017-03-22",
 "family": "digital-speech-standard",
 "tools": [
  {
   "name": "FFmpeg",
   "url": "https://ffmpeg.org",
   "license": "LGPL-2.1-or-later / GPL-2.0-or-later",
   "open_source": true,
   "reads": true,
   "writes": false,
   "via": "digital-speech-standard"
  },
  {
   "name": "ExifTool",
   "url": "https://exiftool.org/",
   "reads": true,
   "writes": false,
   "license": "Artistic License / GNU General Public License, version 1.0 or later",
   "open_source": true,
   "via": "digital-speech-standard"
  },
  {
   "name": "PhotoRec",
   "url": "http://www.cgsecurity.org/wiki/PhotoRec",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License",
   "open_source": true,
   "via": "digital-speech-standard"
  },
  {
   "name": "Photorecovery",
   "url": "https://lc-tech.com/help/PhotoRecovery/English/index.html",
   "reads": true,
   "writes": false,
   "via": "digital-speech-standard"
  }
 ],
 "parsers": [],
 "conversions": [
  {
   "to": "flac-free-lossless-audio-codec-1-2-1",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.dss out.flac",
   "fidelity": "lossless",
   "losses": "Lossless for decoded audio; a lossy source stays as degraded as it was. WAV may reduce bit depth or drop metadata.",
   "url": "https://ffmpeg.org",
   "via": "digital-speech-standard"
  },
  {
   "to": "waveform-audio",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.dss out.wav",
   "fidelity": "lossless",
   "losses": "Lossless for decoded audio; a lossy source stays as degraded as it was. WAV may reduce bit depth or drop metadata.",
   "url": "https://ffmpeg.org",
   "via": "digital-speech-standard"
  },
  {
   "to": "mpeg-1-2-audio-layer-3",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.dss out.mp3",
   "fidelity": "lossy",
   "losses": "Lossy re-encoding.",
   "url": "https://ffmpeg.org",
   "via": "digital-speech-standard"
  },
  {
   "to": "ogg",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.dss out.ogg",
   "fidelity": "lossy",
   "losses": "Lossy re-encoding.",
   "url": "https://ffmpeg.org",
   "via": "digital-speech-standard"
  },
  {
   "to": "mpeg-4-part-14",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.dss out.mp4",
   "fidelity": "lossy",
   "losses": "Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.",
   "url": "https://ffmpeg.org",
   "via": "digital-speech-standard"
  },
  {
   "to": "matroska-1-4",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.dss out.mkv",
   "fidelity": "lossy",
   "losses": "Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.",
   "url": "https://ffmpeg.org",
   "via": "digital-speech-standard"
  },
  {
   "to": "webm",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.dss out.webm",
   "fidelity": "lossy",
   "losses": "Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.",
   "url": "https://ffmpeg.org",
   "via": "digital-speech-standard"
  }
 ]
}