High Quality WAV to M4A
Get the highest quality M4A from your WAV files. AudioUtils uses optimized encoder settings tuned for fidelity, not just speed.
Drop your WAV file here or click to browse
WAV (.wav) · Max 20 MB
The converter defaults to the highest practical bitrate for M4A. For lossy output, that means 320kbps or VBR quality 0. Transparent quality for virtually all listeners.
Garbage in, garbage out. The output quality depends on your source. A 128kbps WAV file won't sound better in M4A. Start with the best source available.
AudioUtils processes everything locally using WebAssembly. The encoder runs at near-native speed. A 10-minute file converts in seconds with maximum quality settings.
Frequently Asked Questions
How much smaller is M4A compared to WAV?
About 85-90% smaller. A 50MB WAV file becomes roughly 5-7MB as M4A at 256kbps AAC.
Is M4A or MP3 better for quality?
M4A (AAC) is better. At the same bitrate, AAC delivers noticeably superior audio quality compared to MP3.
Will my WAV metadata transfer?
Basic metadata (title, artist, album) transfers when available. M4A actually has better metadata support than WAV, including album art.
Can I use M4A in video editing?
Yes. M4A is the audio-only version of the MP4 container. Most video editors accept it directly.
About WAV
Uncompressed audio format. Perfect quality with no data loss. Standard for music production and professional audio work.
About M4A
Apple's preferred audio format. Better quality than MP3 at same bitrate. Default for iTunes and Apple devices.