Over the weekend I returned to a short Suno demo that had a warm chord change. On headphones, a faint buzzing layer appeared whenever the singer held a note. It was mostly hidden, yet once I noticed it I could not ignore it. Initially, I tried to decide whether it was an export fault. I made notes. As a first check, I replayed the repeated bar on another device. I hope to play the draft for two friends, but I do not want to polish away the character that made it interesting. I found fixsuno.top while comparing gentle repair options, and it gave me a useful starting point rather than a promise of a miracle. My first thought was to export again, then compare the same passage at a lower volume. After that I considered a very small repair pass, keeping the untouched file beside it for reference. Has anyone developed a practical listening test for this kind of issue? I am especially curious how you decide whether an odd texture is a real artifact before changing anything.
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