code: def ffmpeg_read(bpayload: bytes, sampling_rate: int) -> np.array:
      """
      Helper function to read an audio file through ffmpeg.
      """
      ar = f"{sampling_rate}"
      ac = "1"
      format_for_conversion = "f32le"
      ffmpeg_command = [
          "ffmpeg",
          "-i",
          "pipe:0",
          "-ac",
          ac,
          "-ar",
          ar,
          "-f",
          format_for_conversion,
          "-hide_banner",
          "-loglevel",
          "quiet",
          "pipe:1",
      ]
  
      try:
          with subprocess.Popen(
              ffmpeg_command,
              stdin=subprocess.PIPE,
              stdout=subprocess.PIPE,
          ) as ffmpeg_process:
              output_stream = ffmpeg_process.communicate(bpayload)
      except FileNotFoundError as error:
          raise ValueError(
              "ffmpeg was not found but is required to load audio files from filename"
          ) from error
      out_bytes = output_stream[0]
      audio = np.frombuffer(out_bytes, np.float32)
      if audio.shape[0] == 0:
          raise ValueError("Malformed soundfile")
      return audio
  
file_path: H2O/h2o_flexgen/benchmark/third_party/transformers/src/transformers/pipelines/audio_utils.py
imports: import platform
  import subprocess
  from typing import Optional, Tuple, Union
  import numpy
label_desc: Use image node_id 1 for calling a global function with example usage: ffmpeg_read(bpayload, sampling_rate) and returns: audio