The latest Suno AI v4.5 has caused quite a stir in the music production world. While the audio quality of newly generated songs has become truly outstanding, the noise issues in previously created tracks remain stubbornly unresolved – creating a rather complex situation.
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New Songs in v4.5 Are Next-Level Quality
When you create new songs with v4.5, the audio quality improvement is simply stunning. That “muffled sound” and weird electronic noise artifacts that plagued v4 are almost completely gone.
Generation speed has doubled too, cutting wait times in half. Plus, you can now create songs up to 8 minutes long, so you can basically make mini-soundtracks now.
The vocals have become much more human-like, with a reported 63% improvement in emotional expression. When you actually listen to it, you’ll think “Is this really AI singing?”
But Don’t Expect Too Much from Remastering Old Tracks
Here’s where things get tricky – when you try to fix songs made with v3.5 or v4 using v4.5’s remaster function, the fundamental noise issues don’t disappear.
The remaster function isn’t just a simple audio quality filter – it’s more like recreating the song with the v4 engine. So weird noise and positioning problems from the original track often stick around.
v3.5 tracks especially have this “passionate but somewhat chaotic” vibe, while v4 tracks are “clearer but emotionally thinner.” Remastering doesn’t change these fundamental characteristics.
User-Discovered Workarounds
While there’s no perfect solution, users have discovered some interesting methods.
The most effective approach is the counterintuitive create with v4.5, then remaster with v4 strategy. This combines v4.5’s superior instrument sounds with v4’s vocal improvements.
There are also tricks for writing better prompts to create less noisy songs from the start. Avoid “Creative Boost,” be specific about genres and styles – lots of little techniques have emerged.
Go Easy on the Remastering
The remaster function can definitely improve poor-quality masterpieces, but overdoing it is a no-go. Especially with vocal tracks – multiple remasters can actually degrade quality.
Instrumental tracks can usually handle multiple rounds, but for songs with vocals, it’s better to stick to just one remaster.
So What Should You Do?
v4.5 is undeniably fantastic progress. If you’re creating new songs, you’ll get unquestionably great audio quality.
But if you want to completely fix noise in old tracks, don’t rely too heavily on remastering – it might be faster to just recreate them from scratch. It’s a bit of a hassle, but once you experience v4.5’s audio quality, you’ll think “I’m glad I remade this.”
Basically, v4.5 is perfect for “songs you’ll create” but it’s not a magic wand for rescuing “past treasures.” It’s probably most fun to accept this as the beginning of a new era and keep creating new songs.
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