account for sample rate & last segment producing an integer offset into base audio file

app.py

@@ -35,7 +35,7 @@ def process_fn(input_audio_path, seed, guidance_scale, num_inference_steps):
         output_audio_path (str): the filepath of the processed audio.
     """
 
-    sig = AudioSignal(input_audio_path)    
+    sig = AudioSignal(input_audio_path, sample_rate=48000)    
 
     outfile = "./output.wav"
 
@@ -54,7 +54,7 @@ def process_fn(input_audio_path, seed, guidance_scale, num_inference_steps):
             end = start + 10
 
         # get segment of audio from original file
-        sig_seg = sig[start:end]
+        sig_seg = sig[start*sig.sample_rate:int(end*sig.sample_rate)]  # int accounts for float end time on last seg
         sig_seg.write("temp.wav")
         audio = super_resolution(
             audiosr,