WAV to M4A
Convert WAV to M4A.
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Convert WAV to M4A.
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Tool guide
Free Online WAV to M4A Converter
Convert one WAV file into an M4A container with 192 kbps AAC audio in your browser. This commonly reduces the size of uncompressed PCM WAV audio, but AAC is lossy and discards some source information.
Steps
How it works
- Choose one WAV file up to 150 MB.
- Preview the source and review its duration.
- Decode the supported WAV audio and encode it as 192 kbps AAC in M4A.
- Preview and download the M4A file.
Highlights
Key features
- Validates WAV input before processing.
- Creates AAC audio at a fixed 192 kbps inside an M4A container.
- Shows conversion progress, source and output previews, duration, and size.
- Uses the WAV filename as the base for the M4A download.
- Provides browser-first conversion for supported WAV codecs.
Use cases
Common uses
- Reduce the size of a PCM WAV recording for compatible playback.
- Prepare WAV audio for an AAC-oriented application.
- Create an M4A listening copy from an authorized WAV source.
- Move supported WAV audio into a mobile-friendly media workflow.
Notes
Limitations to know
- The output is lossy AAC, not lossless ALAC.
- WAV can contain codecs other than PCM, and unsupported audio may fail.
- Only one WAV is processed at a time; batch, bulk, and ZIP conversion are absent.
- AAC bitrate is fixed at 192 kbps with no quality, sample-rate, or channel selector.
- Exact size savings are not guaranteed, and source metadata or artwork is not explicitly copied.
FAQ
Frequently asked questions
Does this create AAC or ALAC?
It creates AAC audio at 192 kbps inside an M4A container.
Is WAV to M4A lossless?
No. The current output codec is AAC, which uses lossy compression.
Will the M4A be smaller than the WAV?
It often is when the WAV contains uncompressed PCM, but the exact size depends on the source.
Can I convert multiple WAV files?
No. One WAV file can be processed per run, up to 150 MB.
Why could a WAV fail?
A WAV container may contain a codec that the browser FFmpeg build cannot decode, or the file may be damaged.