Step 1: Transfer your MP4 files using the button above or by slide and deposit.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Retrieve your converted WMA files.
MP4 to WMA Conversion FAQ
How do I extract the audio from my MP4 file as WMA?
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Upload the MP4 file and the converter demuxes the audio stream, then transcodes it to WMA. There is no second video pass — the visual track is discarded immediately so extraction is much faster than a full re-encode. MP4 is ISO/IEC 14496-14, standardised in 2001 and derived from the same QuickTime box layout MOV uses. WMA is Windows Media Audio, Microsoft’s answer to MP3, launched in 1999 and bundled with every Windows install of that era.
Is converting MP4 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. Almost every MP4 in the wild is H.264 video with AAC audio; the container also legally holds HEVC, AV1 and VP9. WMA is lossy by default, in an ASF container, with lossless and voice-optimised variants that are rarely encountered.
Can I tag the WMA with artist and album information?
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Yes, and it is a genuine gain over MP4, which has nowhere dependable to store any of it. WMA carries title, artist, album, year, track number and embedded cover art in the container itself, so a music library files it correctly without a manual pass. WMA compressed better than contemporary MP3 encoders and remains readable by Windows Media Player and old PlaysForSure devices.
Will the WMA play in my car or on older hardware?
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Often not. MP4 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 MP4. WMA is unsupported almost everywhere outside Windows, and older WMA files may carry DRM that blocks conversion entirely.
What audio bitrate does the extracted WMA use?
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Default bitrate for lossy WMA is 192 kbps, which is transparent for music. You can override to 320 kbps (audiophile) or 96-128 kbps (voice / podcast / smaller file). The bitrate dropdown is exposed in the advanced options before you click convert.
Will I lose audio quality going from MP4 to WMA?
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If WMA is lossless (WAV, FLAC), every sample is preserved exactly. If WMA is lossy (MP3, AAC, OGG, Opus), the WMA codec recompresses the source audio — at 192 kbps the result is transparent for almost all content. Going lossy → lossless never recovers detail already discarded.
Does the WMA audio keep the original sample rate?
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By default yes — 48 kHz audio in your MP4 stays 48 kHz in the WMA output. For CD-burning or legacy player compatibility you can downsample to 44.1 kHz via the sample-rate dropdown; the resampler is high-quality SoX-grade.
Can I extract audio from multiple MP4 files to WMA in one batch?
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Yes — drop a folder of MP4 files and we extract audio in parallel. Premium users get more parallel workers; on a 50-file batch this is the difference between a couple of minutes and ten-plus minutes.
Will the WMA be tagged with title / artist / album metadata?
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If the MP4 carries chapter or stream metadata, we copy title / artist / album fields into the WMA container. If not, the WMA comes out untagged — use a tag editor (Mp3tag, Picard) post-export for richer tagging.
How long does extracting WMA audio from a 1-hour MP4 take?
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Audio demux + encode is fast — typically 5 to 15% of the source duration. A 1-hour MP4 → WMA finishes in roughly 3 to 9 minutes on the standard pipeline; Premium parallelism cuts this further for batch jobs.
Can I extract just a section of the MP4 audio as WMA?
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Not in this tool directly — extract the full audio as WMA, then use /audio-trim/ or /audio-cutter/ to clip the section. The two-step path is usually faster than a combined operation and gives you precise waveform-level control.
Is my MP4 file private during the audio extraction?
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Yes — same privacy model as every conversion: isolated workers, no human review, automatic deletion within minutes of completion. The detailed retention window is on /privacy/.
