M4A → WAV
Decodes M4A to WAV PCM, moving iPhone voice memos into Windows-based editing software.
Drag files here or click to upload (multiple files supported)
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How to convert M4A to WAV
- 1Upload your M4A file by dragging, clicking, or pasting.
- 2Adjust quality settings if needed.
- 3Click 'Convert Now' and wait for the conversion to complete.
- 4Download your converted WAV file.
About M4A to WAV conversion
M4A is an audio container conforming to the MPEG-4 Part 14 standard, usually encapsulating AAC or ALAC encoding, and it is the default audio format for iTunes and Apple devices. WAV is uncompressed linear PCM audio encapsulated in the RIFF container, serving as the standard intermediate format for audio editing and recording. Conversion requests mostly come from professional audio processing scenarios.
The conversion outputs uncompressed linear PCM, usually retaining the original 16-bit or 24-bit bit depth, original sampling rate and number of channels. WAV does not support adjustable bitrate settings. Metadata tags contained in the original M4A will be migrated to the corresponding fields in the output WAV file after conversion.
The converted file can be imported into professional audio editing software such as Adobe Audition and Pro Tools for processing, and is also compatible with professional recording equipment that requires uncompressed formats. The size of a single output file is approximately 10 times that of an MP3 with the same content.
M4A vs WAV: technical comparison
| Feature | M4A | WAV |
|---|---|---|
| Released | 2001 | 1991 |
| Developer | Apple / MPEG | Microsoft / IBM |
FAQ about M4A → WAV
Will audio quality degrade after conversion?
No audio loss occurs after conversion. WAV is an uncompressed linear PCM format, this tool performs conversion based on the FFmpeg engine, and fully retains all original audio information from the input M4A.
Will the original number of channels be retained?
The original number of channels from the input M4A is fully retained, along with the original sampling rate and metadata tags. Basic audio parameters are not modified actively.
What file size is supported?
Only one file can be converted at a time, with a maximum single file size limit of 50MB. Files exceeding the size limit cannot be submitted for processing. The service is free of charge, output files have no watermark, and no registration is required.
Are files stored after conversion?
Files are uploaded to the server via HTTPS for conversion, the server immediately deletes both the source file and output file after conversion completes, no files are stored.