code: def dB_to_amplitude(SNR):
      """Returns the amplitude ratio, converted from decibels.
  
      Arguments
      ---------
      SNR : float
          The ratio in decibels to convert.
  
      Example
      -------
      >>> round(dB_to_amplitude(SNR=10), 3)
      3.162
      >>> dB_to_amplitude(SNR=0)
      1.0
      """
      return 10 ** (SNR / 20)
  
file_path: speechbrain/speechbrain/processing/signal_processing.py
imports: import torch
  import math
  from packaging import version
label_desc: Use image node_id 7 for calling a global function with example usage: dB_to_amplitude(SNR) and returns: unknown