Step 1: Drop your Opus 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.
Opus 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 Opus 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. Opus scales from 6 kbps mono speech to 510 kbps stereo music in the same bitstream and switches modes automatically. WMA is lossy by default, in an ASF container, with lossless and voice-optimised variants that are rarely encountered.
Will going from Opus to WMA reduce my audio quality?
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If Opus is lossy and WMA is lossless (e.g. MP3 → WAV), the WMA file is no better than the Opus — you can't recover information that's already been thrown away. If Opus 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 Opus 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 Opus?
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By default yes (48 kHz Opus → 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 Opus 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 Opus file private during conversion?
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Yes. Nobody listens to or shares the audio, which matters for personal audiobook libraries, and uploaded Opus files and their converted copies are deleted automatically about 24 hours after conversion.
How long does converting a 10-hour audiobook Opus 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.
Why is the WMA file louder / quieter than the Opus source?
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The converter does not change the level: it has no gain or normalize setting. If you hear a difference, your player or media library is probably applying ReplayGain or its own volume levelling on playback; switch that off to hear the WMA as it is.
