2vin / speech-augment

Scripts for augmenting speech dataset using multiple techniques

speech-augment

Scripts for augmenting speech dataset using multiple techniques

Pre-requisites

Install ffmpeg before trying the scripts.

Description

There are total 7 scripts to augment speech data (in order of priority).

1. mp32wav.sh - It can be used to convert .mp3 files to .wav files as .wav files are used widely.
   Usage : ./mp32wav.sh InputFolder(mp3) OutputFolder(wav)

2. speedAdjustWav.sh - It can be used to augment the speed of files.
   Usage : ./speedAdjustWav.sh InputFolder OutputFolder Speed
   (Note: For best results, use "Speed" values from [0.7,1.4] only)

3. volumeAdjustWav.sh - It can be used to adjust the amplitude or volume of the speech. This is useful in enhancing robustness to distance of speaker.
   Usage : ./volumeAdjustWav.sh InputFolder OutputFolder

4. equalTime.sh - It can be used to adjust to make the size of each .wav file equal to (atleast) MinimumSeconds.
   Usage : ./equalTime.sh InputFolder OutputFolder MinimumSeconds

5. mergeNoise.sh - It can be used to mix noise in the dataset by superimposing the two streams.
   Usage : ./mergeNoise.sh InputFolder NoiseFolder OutputFolder

6. splitAudioSegment.sh - It can be used to split large .wav files into small fragments of equal size(s).
   Usage : ./splitAudioSegment.sh InputFolder SegmentDuration(in seconds)

7. renameSeq.sh - It can be used to rename all the files in a folder. All files will be renamed in a particular sequence.
   Usage : ./renameSeq.sh InputFolder Phrase
   (Note: Phrase can be any alphanumeric string which can be used to differentiate between data from different users)