ｖａｐｏｒｉｓｅｒ is a Python script that creates a vaporwave (slowed, with reverb) remix of a given MP3 file, with the option of playing over a looped GIF as a video.
It adds reverb, applies a low-pass filter, slows down, and pitches down an input MP3 file.
The result is written to a new MP3 file, and if a GIF is given in the command, an MP4 video file of the GIF on repeat for the duration of the remix is also created.
The speed, pitch and low-pass filter cutoff can be controlled with the --speed, --pitch and --lowpass arguments (these are optional, default parameters are provided).
See usage for a full list of available effects.
Contents
System requirements
Required software
- Python 3.6.9 or higher
- Python modules in requirements.txt
- Sound eXchange (SoX)
- libsox-fmt-mp3 for SoX MP3 support
- A UNIX operating system (Linux or macOS)
Using vaporiser on Windows
This project is written to be used through a UNIX (Linux or Mac with macOS Mojave or later) operating system (OS). If you are using Windows, you can use this project on a Linux OS (e.g. Ubuntu) through either:
Installing SoX
SoX and libson-fmt-mp3 can be installed with the following commands:
$ sudo apt install sox
$ sudo apt-get install libsox-fmt-mp3Setup instructions
Clone the repo
$ git clone https://github.com/rnnh/vaporiser.git
$ cd vaporiser/Create a virtual environment
/vaporiser$ virtualenv env
/vaporiser$ source env/bin/activateInstall required packages
(env) /vaporiser$ pip install -r requirements.txtUsage
Example
Vaporiser can be used to create a remix of the file audio_file.mp3 with the following command:
$ python vaporiser.py --audio audio_file.mp3The remixed audio will be written to the file audio_file_vaporised.mp3.
By default, _vaporised is added to the end of the output filenames, unless an output filename is specified using the --output argument.
Help text
$ python vaporiser.py --helpusage: vaporiser.py [-h] [-o OUTPUT_NAME] -a AUDIO_INPUT [-s SPEED_RATIO]
[-p PITCH_SHIFT] [-l LOWPASS_CUTOFF] [-tr] [-ph]
[-ga GAIN_DB] [-co] [-g GIF_FILE] [-sb]
Creates a vaporwave (slowed, with reverb) remix of a given MP3 file, with the
option of playing over a looped GIF as a video.
optional arguments:
-h, --help show this help message and exit
-o OUTPUT_NAME, --output OUTPUT_NAME
Name of output file(s), instead of audio file name
with the addition of '_vaporised'. (default: None)
required arguments:
-a AUDIO_INPUT, --audio AUDIO_INPUT
Input audio file to vaporise (.mp3) (default: None)
audio arguments:
these arguments control audio effects that will be applied by default
-s SPEED_RATIO, --speed SPEED_RATIO
Ratio of new playback speed to old speed. (default:
0.75)
-p PITCH_SHIFT, --pitch PITCH_SHIFT
Pitch shift (100ths of a semitone). (default: -75)
-l LOWPASS_CUTOFF, --lowpass LOWPASS_CUTOFF
Cutoff for lowpass filter (Hz). (default: 3500)
extra audio arguments:
these arguments control extra, optional audio effects
-tr, --tremolo Enable tremolo effect. (default: False)
-ph, --phaser Enable phaser effect. (default: False)
-ga GAIN_DB, --gain GAIN_DB
Applies gain (dB). (default: None)
-co, --compand Enable compand, which compresses the dynamic range of
the audio. (default: False)
video arguments:
optional arguments, result in an MP4 video output in addition to the MP3
audio
-g GIF_FILE, --gif GIF_FILE
Input GIF file to loop. Without a GIF, only an MP3 is
created. With a GIF, an MP4 video is also created.
(default: None)
-sb, --sobel Applies a Sobel filter to video output. (default:
False)