Voice cloning audio quality: 5 dB vs 20 dB denoise or re-record

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A 5 dB cafe clip drops cloned voice similarity to 0.61 and MOS to 3.18, while 20 dB holds 0.82 and 4.21. Learn when to denoise or re-record. Independent technical note mirroring the canonical version: https://clonemyvoice.io/blog/voice-cloning-audio-quality-5-db-vs-20-db-denoise-or-re-record.php