Step 1: Drop your AAC 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.
AAC 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 AAC 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. AAC is lossy but more efficient than MP3, and it handles up to 48 channels natively rather than being bolted onto a stereo design. WMA is lossy by default, in an ASF container, with lossless and voice-optimised variants that are rarely encountered.
Will the WMA play in my car or on older hardware?
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Often not. AAC 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 AAC. WMA is unsupported almost everywhere outside Windows, and older WMA files may carry DRM that blocks conversion entirely.
Will going from AAC to WMA reduce my audio quality?
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If AAC is lossy and WMA is lossless (e.g. MP3 → WAV), the WMA file is no better than the AAC — you can't recover information that's already been thrown away. If AAC 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 AAC 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 AAC?
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By default yes (48 kHz AAC → 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 AAC 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 AAC file private during conversion?
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Yes. Nobody listens to or shares the audio, which matters for personal audiobook libraries, and uploaded AAC files and their converted copies are deleted automatically about 24 hours after conversion.
How long does converting a 10-hour audiobook AAC to WMA take?
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It depends on the size and length of the file. Small documents and images are usually ready quickly. Long videos take the longest, because most video conversions re-encode every frame.
