class_docstr: Compare Fbank&&Pitch FE with kaldi.
code: def test_FbankPitch(self):
      wav_path = str(Path(PACKAGE_OPS_DIR).joinpath("data/sm1_cln.wav"))
  
      with self.cached_session(use_gpu=False, force_gpu=False):
          read_wav = ReadWav.params().instantiate()
          input_data, sample_rate = read_wav(wav_path)
          config = {
              "window_length": 0.025,
              "output_type": 1,
              "frame_length": 0.010,
          }
          fbank_pitch = FbankPitch.params(config).instantiate()
          fbank_pitch_test = fbank_pitch(input_data, sample_rate)
  
          self.assertEqual(tf.rank(fbank_pitch_test).eval(), 2)
          print(fbank_pitch_test.eval()[0:2])
  
file_path: delta/delta/data/frontend/fbank_pitch_test.py
imports: import delta.compat
  import os
  from pathlib import Path
  from delta.data.frontend.read_wav import ReadWav
  from delta.data.frontend.fbank_pitch import FbankPitch
  from core.ops import PACKAGE_OPS_DIR
label_desc: Use image node_id 1 for calling the FbankPitchTest obj's underlying member method code with example usage: obj.test_FbankPitch() without return types