playback optimization

app.py

@@ -114,6 +114,9 @@ def generate_samples(model_name, num_samples, num_steps, duration=32768):
     ckpt_path = models[model_name]
     load_checkpoint(model, ckpt_path)
 
+    if num_samples > 1:
+        duration = duration / 2
+
     with torch.no_grad():
         all_samples = torch.zeros(2, 0) # initialize all samples
         for i in range(num_samples):