Sony Wave64

Writable

audio · also known as Sony Media WAVE 64

W64 is a 64 bit WAV-like audio format created to overcome the 32 bit addressing limitations of conventional WAV.

Identify it

Extensions	`.w64.wav`
Signatures	`726966662e91cf11a5d628db04c10000` at byte 0 (Sonic Foundry WAVE 64)
PRONOM	`fmt/951`
Wikidata	`Q27960118`

Not sure your file is this? Identify it from its first bytes, in your browser.

Open it

FFmpegOpen sourcereads and writes · LGPL-2.1-or-later / GPL-2.0-or-later
Free Lossless Audio CodecOpen sourcereads and writes · 3-clause BSD License / GNU General Public License, version 2.0 / GNU Library General Public License, version 2.0
libsndfileOpen sourcereads and writes · GNU Lesser General Public License
FFmpeg (WebAssembly)Open sourcereads · GPL-2.0-or-later
Q3898244Open sourcereads · BSD licenses / GNU General Public License / GNU Lesser General Public License
EZ CD Audio Converterreads and writes
Video Factoryreads and writes
Awave Studioreads
Q300915reads · freeware

Convert it

Convert a file in your browser The steps marked “in browser” run on your machine; nothing is uploaded.

To	With	Fidelity	Command and losses
FLAC 1.2.1	FFmpeg	Lossless	`ffmpeg -i in.w64 out.flac` Lossless for decoded audio; a lossy source stays as degraded as it was. WAV may reduce bit depth or drop metadata.
FLAC 1.2.1	FFmpeg (WebAssembly)	Lossless	in browser Lossless for decoded audio; a lossy source stays as degraded as it was.
WAV	FFmpeg	Lossless	`ffmpeg -i in.w64 out.wav` Lossless for decoded audio; a lossy source stays as degraded as it was. WAV may reduce bit depth or drop metadata.
WAV	FFmpeg (WebAssembly)	Lossless	in browser Lossless for decoded audio; a lossy source stays as degraded as it was.
Advanced Audio Coding	FFmpeg (WebAssembly)	Lossy	in browser Lossy re-encoding.
Matroska	FFmpeg	Lossy	`ffmpeg -i in.w64 out.mkv` Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.
MP3	FFmpeg	Lossy	`ffmpeg -i in.w64 out.mp3` Lossy re-encoding.
MP3	FFmpeg (WebAssembly)	Lossy	in browser Lossy re-encoding.
MP4	FFmpeg	Lossy	`ffmpeg -i in.w64 out.mp4` Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.
Ogg	FFmpeg	Lossy	`ffmpeg -i in.w64 out.ogg` Lossy re-encoding.
Ogg	FFmpeg (WebAssembly)	Lossy	in browser Lossy re-encoding.
Ogg Opus Codec Compressed Multimedia File	FFmpeg (WebAssembly)	Lossy	in browser Lossy re-encoding.
WebM	FFmpeg	Lossy	`ffmpeg -i in.w64 out.webm` Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.

Sources

From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), WebAssembly engines (ImageMagick, FFmpeg, Pandoc, 7-Zip, GDAL, Assimp, resvg), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-26.

Improve this record JSON