How do I convert AC3 audio to FLAC without losing quality?
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Upload the AC3 file and the converter chooses the FLAC codec / bitrate combination that matches the source profile. Lossless FLAC (WAV / FLAC / ALAC) preserves every sample exactly; lossy FLAC (MP3 / AAC / OGG / Opus) defaults to 192 kbps which is transparent for almost all music content.
What bitrate does the FLAC file end up at?
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Default 192 kbps for lossy FLAC; pass-through for lossless FLAC. Override to 320 kbps if you want maximum lossy fidelity, 128 kbps for size-constrained podcast distribution, or 96 kbps for voice-only sources where the smaller file matters more than studio detail.