attempt s curve to further reduce artefacts

app.py

@@ -218,7 +218,7 @@ def generate(audio_path, ins, speed, alpha, beta, embedding, steps=200):
         thresh = np.percentile(np.abs(synthaud), 95)
         CUT_SAMPLES = 20000  # max samples to cut, in practice only 4-6k are actually cut
         lead_percent = 0.008
-        trail_percent = 0.009
+        trail_percent = 0.008
 
 
         # Leading artefact removal