Step 1: Share your WMV files using the button above or by drag and drop.
Step 2: Click the 'Transform' button to start the transformation.
Step 3: Grab your converted FLAC files.
WMV to FLAC Transformation FAQ
How do I extract the audio from my WMV file as FLAC?
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Upload the WMV file and the converter demuxes the audio stream, then transcodes it to FLAC. There is no second video pass — the visual track is discarded immediately so extraction is much faster than a full re-encode. WMV is Windows Media Video, Microsoft’s ASF-based format from the Windows XP era. FLAC is the Free Lossless Audio Codec, an open format from 2001 that compresses without discarding a single sample.
Does converting WMV to FLAC improve the audio quality?
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No, and it is worth being blunt: nothing can. The WMV already discarded detail during its original encode, and wrapping what remains in a lossless FLAC preserves exactly that — no more. The file gets several times larger and sounds identical. It is still the right move before editing, because FLAC will not add a second generation of artefacts when you export. FLAC gives you WAV fidelity at half the size, with proper metadata tags and embedded artwork, which is why it dominates lossless music libraries. WMV is effectively a dead end: macOS, iOS, Android and every browser need third-party decoders, and some WMV files carry DRM that cannot be converted at all.
Can I tag the FLAC with artist and album information?
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Yes, and it is a genuine gain over WMV, which has nowhere dependable to store any of it. FLAC 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.
Why will some of my WMV files not convert?
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DRM. A subset of WMV 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.
What audio bitrate does the extracted FLAC use?
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A lossy FLAC 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 FLAC (WAV, FLAC) ignores the bitrate and keeps every sample.
Will I lose audio quality going from WMV to FLAC?
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If FLAC is lossless (WAV, FLAC), every sample is preserved exactly. If FLAC is lossy (MP3, AAC, OGG, Opus), the FLAC codec recompresses the source audio — at 192 kbps the result is transparent for almost all content. Going lossy → lossless never recovers detail already discarded. FLAC uses linear prediction plus Rice coding to reach roughly 50-60% of the original size while decoding back to bit-identical PCM.
Can I extract audio from multiple WMV files to FLAC in one batch?
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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.
How long does extracting FLAC audio from a 1-hour WMV 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.
Can I extract just a section of the WMV audio as FLAC?
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Not in this tool directly — extract the full audio as FLAC, 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 WMV file private during the audio extraction?
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Yes. Uploaded WMV files are processed on our own conversion servers, no person reviews them, and they are never shared. The upload and the converted FLAC are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.
