CONVERT
MP3 → W64
Fast, secure MP3 to W64 conversion. No registration required.
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Opening note — MP3 is the universal lossy audio format with decades of hardware support. The W64 you want is two clicks away. Need a W64 version of a MP3 recording for a podcast host, audio book platform or DAW that refuses the original container? Drop the file above and our encoder produces a clean W64 you can drag straight into the destination tool. Metadata such as title, artist and cover art travels with the audio. Keep in mind MP3 is the universal lossy audio format with decades of hardware support. And remember that W64 is an audio format with specific trade-offs between file size, bitrate flexibility, and device support.
MP3 Audio
Source formatMP3 is the most widely recognized audio format in the world. It uses lossy compression to dramatically reduce file sizes while maintaining good perceived audio quality, making it the standard for music distribution.
Sony Wave64
Target formatWave64 (W64) is an extension of the WAV format developed by Sony that breaks the 4 GB file size limit of standard WAV by using 64-bit chunk sizes. It is used in professional audio production for very long or multi-channel recordings.
Why convert MP3 to W64
MP3 Audio is great in its own niche, but Sony Wave64 is either more universally playable or better suited to the device you are targeting. Converting lets you ship the audio without asking listeners to install a codec. The loss in quality between the two is negligible at sensible bitrates.
HOW TO CONVERT
MP3 → W64
Upload the MP3
Drop or select your MP3 file. The upload is encrypted and the file is queued for conversion.
Transcode via FFmpeg
FFmpeg decodes the MP3 stream to PCM internally, then re-encodes as W64 at the bitrate you select.
Download the W64
The W64 is delivered as a direct download; metadata and cover art transfer automatically where possible.
Common Use Cases
Podcast distribution
Podcast hosts (Spotify, Apple, Acast) publish audio as W64 when the workflow requires it; converting upfront skips server-side transcoding.
DAW ingestion
Pro Tools, Logic, Ableton and Reaper pull W64 into projects without decode overhead, so scrubbing and waveform display are snappy.
Portable players
W64 plays reliably on old iPods, car stereos, Bluetooth speakers and fitness trackers where MP3 support is spotty.
Voice memo sharing
Voice notes recorded as MP3 travel to phones and desktops as W64 without recipients installing extra codecs.
Quality & Compatibility
Lossy-to-lossy transcoding (most cross-format audio jobs) loses a tiny amount of quality on each pass — usually inaudible at our default VBR ~190 kbps for music or 96 kbps for speech. Lossy-to-lossless conversions freeze the existing quality but cannot improve it; lossless-to-lossy is only as good as the target bitrate you choose.
Tips for Best Results
- Pick 128 kbps for podcasts and voice, 192–256 kbps for music, 320 kbps only if the audio will be edited further downstream.
- Keep the MP3 master alongside the W64 — re-encoding a lossy format twice accumulates audible artefacts.
- For mono voice content, convert to mono W64 explicitly to halve file size without any quality loss.
Frequently Asked Questions
Frequently Asked Questions
Lossy-to-lossy conversions (most combinations) re-compress the audio, which technically introduces some loss. At a 192 kbps or higher target it is inaudible on normal equipment. Lossy-to-lossless conversions freeze the existing quality but cannot improve it; lossless-to-lossy transcodes are only as good as the target bitrate you choose.
For voice content (podcasts, audiobooks, lectures) 128 kbps is indistinguishable from higher bitrates. For music, 192-256 kbps covers most listening; 320 kbps is the ceiling for W64 and the right choice for audio you plan to edit further. Above that, prefer a lossless target instead.
Yes. Title, artist, album, year and cover art travel from the MP3 container to the W64 container automatically where both formats support them. If a tag field has no W64 equivalent, it is dropped silently. Use any tag editor (Mp3tag, MusicBrainz Picard) to fine-tune afterwards.
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Read guideSecure & Private Conversion
Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 2 hours. We never read, share, or store your data.