add none sample

app.py

@@ -53,7 +53,8 @@ def mix_and_denoise(speech, speech_alt, noise, snr):
         noise = "samples/dkitchen.wav"
     if speech is None or speech == "":
         speech = "samples/p232_013_clean.wav"
-        if speech_alt is not None:
+        if speech_alt is not None and "none.wav" not in speech_alt:
+            print("using speech_alt")
             speech = speech_alt
     print(speech, noise, snr)
     sr = config("sr", 48000, int, section="df")
@@ -200,13 +201,13 @@ inputs = [
 examples = [
     [
         "samples/p232_013_clean.wav",
-        "samples/p232_013_clean.wav",
+        "samples/none.wav",
         "samples/dkitchen.wav",
         10,
     ],
     [
         "samples/p232_013_clean.wav",
-        "samples/p232_019_clean.wav",
+        "samples/none.wav",
         "samples/dliving.wav",
         10,
     ],

samples/none.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:531cd597b25052b4845ef2f3887dec2183240802a93b6e044960de8ba017caa0
+size 44