Drop a .wav and it is encoded to MP3 on your device — a fraction of the size, nothing uploaded.
Drop a .wav and it is encoded to MP3 on your device — a fraction of the size, nothing uploaded.
Convert WAV audio to MP3 in your browser. WAV is uncompressed — studio-grade and enormous: about 10 MB per minute. MP3 gets you a file roughly ten times smaller that plays everywhere and sounds effectively identical for speech and everyday listening. GhostAudio converts on your device: no upload, no signup, no queue. Demos, recordings, and session bounces never leave your device.
WAV stores uncompressed PCM audio: roughly 10 MB per minute at CD quality. That's exactly what you want while recording and editing, and exactly what you don't want when sending a file to someone. MP3 typically cuts it by 90% or more with a quality loss most listeners won't notice on speech or casual listening — which is why WAV to MP3 remains one of the most common conversions in audio work.
How it works
Drag in the .wav file. It opens in the GhostAudio studio with Convert to MP3 pre-selected.
ffmpeg encodes the MP3 in your browser — no server, no waiting in line behind other people's files.
Save a file a fraction of the size — ready for email, podcast hosting, or your phone.
Keep the WAV as your master
MP3 is lossy and irreversible. Convert a copy for distribution and keep the WAV for any future editing — each additional lossy generation compounds the damage.
Bitrate is the quality dial
64–96 kbps (with Mono) suits speech; 128 kbps is fine for casual listening; 192–320 kbps is the usual choice where quality matters. Higher bitrates cost size with diminishing perceptual return.
Large WAVs and browser memory
An hour of stereo CD-quality WAV is around 600 MB. Processing happens in your browser's memory, so very long recordings are better handled on a desktop than a phone — the tool will tell you if a file exceeds what your device can take.
No — the encoding happens in your browser. Unreleased music and private recordings stay yours.
For speech, almost never. For music on good headphones, a high-bitrate MP3 is transparent to nearly all listeners. Keep the WAV as your master; share the MP3.
No — archive the WAV (lossless), distribute the MP3. Converting back never restores what MP3 discarded.
One per pass right now — each takes seconds, and nothing re-uploads because nothing uploads.
Typically 90% or more. A 50 MB WAV commonly lands around 4-5 MB at 128 kbps. The exact figure depends on the bitrate you choose, not on the content.
Yes. High-resolution source audio is decoded and re-encoded to MP3, which caps sample rate at 48 kHz and discards detail its psychoacoustic model considers inaudible — so some of that extra resolution goes by definition of the target format.
Every GhostAudio tool runs entirely in your browser. Your file is never uploaded — there's no upload endpoint to send it to.