将 M4A 转换为 WAV

Free online M4A to WAV converter. Fast, secure, no signup required.

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Accepted: M4A files · Max 100 MB per file

m4a wav

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Need to convert M4A to WAV? MegaConvert makes it easy. Upload your MPEG-4 Audio (M4A) file and get a Waveform Audio (WAV) file in seconds — no software to install, no signup required. Whether you need this conversion for music playback, podcasting, device compatibility / web streaming, our online converter handles it instantly. Free for files up to 25MB, with support for larger files up to 2GB.

How to Convert M4A to WAV Online

1
Upload your M4A file
Click the upload area or drag and drop your M4A file. Files up to 25MB are free. Larger files are supported with pay-per-use.
2
Choose WAV as output format
WAV is automatically selected on this page. You can adjust conversion settings if needed.
3
Click Convert
Hit the Convert button to start processing. Your file will be converted using our high-performance servers.
4
Download your WAV file
Once conversion is complete, click Download to save your new WAV file. Free files are available for 1 hour.

Why Convert M4A to WAV?

**Cross-platform sharing** — M4A is primarily used on Apple devices. Converting to WAV ensures your files work on Windows, Android, and Linux too.
**Reduce file size** — Converting between formats can significantly reduce file size, making files easier to share via email or cloud storage.
**Software requirements** — Your software or platform may require WAV format specifically. Converting ensures full compatibility.

M4A vs WAV — Format Comparison

Feature	M4A	WAV
Full Name	MPEG-4 Audio	Waveform Audio
Developer	Apple (based on MPEG-4)	Microsoft and IBM
First Released	2001	1991
Category	Audio	Audio
Extension	.m4a	.wav
MIME Type	audio/mp4	audio/wav

Converting from lossy to lossless does not improve quality. Start from lossless source when possible.

About M4A Format

Apple's audio format using AAC or ALAC codec within an MP4 container.

Full name: MPEG-4 Audio

Developer: Apple (based on MPEG-4) (2001)

About WAV Format

Uncompressed audio format providing exact reproduction of the original recording.

Full name: Waveform Audio

Developer: Microsoft and IBM (1991)

常见问题

Upload your M4A file to MegaConvert.io, select WAV as the output format, and click Convert. Your converted file will be ready to download in seconds. No software installation required.

Yes! Files up to 25MB can be converted for free, up to 3 times per day. For larger files, pay-per-use pricing starts at just $2 for files up to 100MB.

Absolutely. All uploaded files are encrypted in transit (HTTPS), scanned for viruses, and automatically deleted after conversion. We never share or access your files.

Free users can convert files up to 25MB. Pay-per-use supports files up to 2GB. Subscribers get up to 2GB with priority processing.

Apple's audio format using AAC or ALAC codec within an MP4 container. Developer: Apple (based on MPEG-4) (2001).

Uncompressed audio format providing exact reproduction of the original recording. Developer: Microsoft and IBM (1991).