Add torchscript test

Author: mthrok

test/torchaudio_unittest/functional/torchscript_consistency_impl.py

@@ -547,3 +547,14 @@ def func(tensor):
 
         tensor = common_utils.get_whitenoise(sample_rate=44100)
         self._assert_consistency(func, tensor)
+
+    def test_compute_kaldi_pitch(self):
+        if self.dtype != torch.float32 or self.device != torch.device('cpu'):
+            raise unittest.SkipTest("Only float32, cpu is supported.")
+
+        def func(tensor):
+            sample_rate: float = 44100.
+            return F.compute_kaldi_pitch(tensor, sample_rate)
+
+        tensor = common_utils.get_whitenoise(sample_rate=44100)
+        self._assert_consistency(func, tensor)