By default yes — a 48 kHz audio track in FLV becomes 48 kHz in MP3. If you need 44.1 kHz (CD-quality) for compatibility with older players, the advanced options include a sample-rate dropdown.
我能从多个 FLV 文件提取音频到 MP3 的批量吗?
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Yes — drop a folder of FLV files in and we extract audio in parallel. Premium users get more parallel workers; on a 50-file batch this is the difference between 90 seconds and 8 minutes.
Audio extraction is much faster than video re-encoding — typically 5-15% of the source duration. A 1-hour FLV → MP3 finishes in 3-9 minutes on the standard pipeline.
Can I extract just a section of the FLV audio as MP3?