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

• Voices
• Noises

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/