Step 1: Drop your M4A files using the button above or by deposit and leave.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Receive your converted WMA files.
M4A to WMA Conversion FAQ
What bitrate does the WMA file use?
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A lossy WMA is encoded at 192 kbps by default. The Audio Quality setting also offers 320 kbps for the best quality and 128 kbps for a smaller file. A lossless WMA (WAV, FLAC) ignores the bitrate and keeps every sample.
Is converting M4A to WMA a second round of lossy compression?
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Yes, and it is worth planning around. Both formats are lossy, so the WMA encoder is working from audio that has already been through one psychoacoustic pass, and its own decisions compound the first set. At 192 kbps or above the result is still transparent for most listening. If you have a lossless master anywhere, encoding the WMA from that instead avoids the double pass entirely. An M4A holds AAC in most cases, or Apple Lossless (ALAC) when it came from a lossless rip. WMA is lossy by default, in an ASF container, with lossless and voice-optimised variants that are rarely encountered.
Why will some of my M4A files not convert?
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DRM. A subset of M4A files are encrypted by the store or the software that issued them, and encrypted audio cannot be decoded by any converter. Anything you ripped yourself, recorded, or bought without protection converts normally; a licensed purchase will not. M4A hides two very different things behind one extension — lossy AAC and lossless ALAC — and non-Apple hardware support is inconsistent.
Will the WMA play in my car or on older hardware?
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Often not. M4A is decoded by essentially everything, including car head units and elderly players; WMA needs software that knows the codec, which standalone hardware frequently does not have. If the destination is a car stereo or a portable player, that is a strong argument for staying on M4A. WMA is unsupported almost everywhere outside Windows, and older WMA files may carry DRM that blocks conversion entirely.
Will going from M4A to WMA reduce my audio quality?
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If M4A is lossy and WMA is lossless (e.g. MP3 → WAV), the WMA file is no better than the M4A — you can't recover information that's already been thrown away. If M4A is lossless and WMA is lossy, expect the WMA codec to recompress; at 192 kbps this is transparent for most content.
Can I batch convert hundreds of M4A files to WMA?
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Several files in one job need a paid plan. Free use is one file per conversion, one conversion an hour. On a paid plan you can add several files to one job, then download each result on its own or all of them in one ZIP.
Will the WMA keep the same sample rate as M4A?
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By default yes (48 kHz M4A → 48 kHz WMA). If you need to downsample for compatibility (e.g. 96 kHz → 44.1 kHz for CD burning) the advanced sample-rate option does this with high-quality resampling.
Can I normalize loudness in the M4A to WMA step?
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Not in this step. The converter has no loudness setting and leaves the level as it is. To even out the volume, run the finished WMA through a Normalize tool on this site.
Will the WMA play on my car stereo / iPod / audiobook app?
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MP3 plays almost everywhere. AAC plays on Apple devices, most Android phones and Sonos. FLAC plays on Sonos and Android but not on older iPods, and WAV plays on nearly everything but makes large files. There are no device presets on this page, so choose the target format your player supports.
Is my M4A file private during conversion?
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Yes. Nobody listens to or shares the audio, which matters for personal audiobook libraries, and uploaded M4A files and their converted copies are deleted automatically about 24 hours after conversion.
