class_docstr: Test case of valid embedding interface 
docstr: target: test embedding for normal case
  method: embedding with different audios
  expected: return not identical embeddings
docstr_tok: ["target",":","test","embedding","for","normal","case","method",":","embedding","with","different","audios","expected",":","return","not","identical","embeddings"]
code: def test_embedding_different_audios(
      self, pipeline_name, embedding_size
  ):
      """
      target: test embedding for normal case
      method: embedding with different audios
      expected: return not identical embeddings
      """
      nums = 2
      embeddings = []
      embedding_pipeline = pipeline(pipeline_name)
      for i in range(nums):
          embedding = embedding_pipeline(
              data_path + "towhee_test_audio_%d.wav" % i
          )
          embeddings.append(embedding[0][0])
          assert embedding[0][0][0].size == embedding_size
  
      assert embeddings[0] is not embeddings[1]
  
      return True
  
imports: import numbers
  import sys
  import time
  import threading
  import numpy
  from towhee import AutoPipes, AutoConfig
  from common import common_func
label_desc: Use image node_id 3 for calling the TestAudioEmbeddingValid obj's underlying member method code with example usage: obj.test_embedding_different_audios(pipeline_name, embedding_size) and returns: True