Memory Stick Voice File (MSV) ADPCM Codec
Unknownaudio
The Memory Stick Voice (MSV) format is an audio file format that was used on the Sony Memory Stick IC recorder, specifically the ICD-MS1 model. Two versions of the MSV format exist: MSV (ADPCM) and MSV (LPEC). The first version, this one, MSV (ADPCM), uses an unspecified type of ADPCM compression, while MSV (LPEC) uses Sony's proprietary Long-term Predicted Excitation Coding (LPEC) codec.
Identify it
| Extensions | .msv |
|---|---|
| Signatures | 4d535f564f494345 at byte 0 (MSV ADPCM) |
| PRONOM | fmt/1890 |
| Wikidata | Q121913880 |
Not sure your file is this? Identify it from its first bytes, in your browser.
Open it
No software is recorded for this format — see its family, Memory Stick Voice.
Convert it
No conversion recorded. One of the tools above may export it; search for a chain.
0Sources
From PRONOM, Wikidata. Updated 2026-10-20.