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audio-snr's Introduction

Mixing an audio file with a noise file at any Signal-to-Noise Ratio

Installation

  • Python3.5
  • MacOS

Library

  • argparse
  • array
  • math
  • numpy
  • random
  • wave

File format

To use this code, the format of source waveforms is as follows.

  • 16-bit PCM
  • 1 channel

Additionally, the sampling rate of a clean file and that of noise file are supposed to be the same.

Usage

Example: python3 create_mixed_audio_file.py --clean_file data/source_clean/arctic_a0001.wav --noise_file data/source_noise/ch01.wav --output_mixed_file data/output_mixed/0.wav --snr 0

Dataset

Detail

There is the detail on my post (in Japanese).

https://engineering.linecorp.com/ja/blog/voice-waveform-arbitrary-signal-to-noise-ratio-python/

There is the detail on my post (in Korean).

https://engineering.linecorp.com/ko/blog/voice-waveform-arbitrary-signal-to-noise-ratio-python/

audio-snr's People

Contributors

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