chunk bug

app.py

@@ -110,8 +110,10 @@ def svc_change(argswave, argsspk):
         out_chunk = 2500  # 25 S
         out_index = 0
         out_audio = []
+        has_audio = False
 
         while (out_index + out_chunk < all_frame):
+            has_audio = True
             if (out_index == 0):  # start frame
                 cut_s = out_index
                 cut_s_48k = 0
@@ -139,8 +141,12 @@ def svc_change(argswave, argsspk):
             out_index = out_index + out_chunk
 
         if (out_index < all_frame):
-            cut_s = out_index - hop_frame
-            cut_s_48k = hop_frame * hop_size
+            if (has_audio):
+                cut_s = out_index - hop_frame
+                cut_s_48k = hop_frame * hop_size
+            else:
+                cut_s = 0
+                cut_s_48k = 0
             sub_ppg = ppg[cut_s:, :].unsqueeze(0).to(device)
             sub_pit = pit[cut_s:].unsqueeze(0).to(device)
             sub_len = torch.LongTensor([all_frame - cut_s]).to(device)