#Audio spectrum visualizer program install#
#Audio spectrum visualizer program software#
#Audio spectrum visualizer program code#

This is actioned by running glava -copy-config. First, copy the default configuration files to ~/.config/glava. To configure the software, youвЂ™ll need to manually edit files with a text editor, as nothing can be modified from the application itself.

#Audio spectrum visualizer program install#

$ sudo apt-get install libpulse0 libpulse-dev libxext6 libxext-dev libxrender-dev libxcomposite-dev meson gcc You can fix any compiling problems by ensuring you have the necessary packages with:

#Audio spectrum visualizer program software#

But under Ubuntu 18.04 the software didnвЂ™t compile complaining about вЂњmissing meson.build:74:1: ERROR: C library вЂXrenderвЂ™ not foundвЂќ. On my Arch system, I didnвЂ™t need to install any packages first. Simply type the following commands at a shell.

#Audio spectrum visualizer program code#

But compiling the source code is very straightforward. GLava is available in the Arch User Repository if you use Arch Linux or one of its clones. You might find a package for your favorite distribution. The software uses PulseAudio to sync the desktop visualizer with any music source.

Program can be ported to Windows and other operating systems.GLava is a simple C program that sets up the necessary OpenGL and Xlib code for sets of 2D fragment shaders. Progress bar of the audio can be displayed.

GUI can be provided for loading audio and other keyboard functions. With proper implementation of window function (Hann Window) Accurate time synchronized spectrum of the audio can be generated. Time synchronization of audio and spectrum is not perfect. Power Spectrum or Frequency Domain spectrum can be generated for the audio.Д«asic Music player functions such as Load, Play, Pause, Seek and Replay is supported.Д¬lamping, interpolation, and showing of points can be toggled. This Project is successfully completed and stable version 1.0 have been released. This project is compiled and executed using g++ compiler g++ (version 5.2.1). Returns -1 otherwise.Дescription: Loads the array of points into the buffer and draw the graph.Дescription: Accepts a key as input and performs desired operation.Дescription: Clears the resources allocated for the program.

C++ compiler : g++ with c++11 support (-std=gnu++11) (version >= 5.2.1)Д¬specification: static timestamp_t get_timestamp ()Дescription: Used to get the current system time.Дescription: Used to get the fourier transform of the input array elements.Дescription: Used to fetch N samplings, convert them to frequency domain, and convert them to log10scale.Дescription: Initializes the resources needed for the OpenGL to draw the graph.Дescription: Returns 0 if all the samples are collected.

May support lower versions also but not been tested. The development of the project was done with these requirements.

Simple and Fast Multimedia Library (SFML).

The following c++ frameworks are used in this project. Interface for the program is given with the help of keyboard. The development and testing of this project is done on Linux (ubuntu) using 4.2.0-16-generic Kernel. Three frameworks Aquila-dsp, Kiss-Fft, and SFML are used to perform audio sampling, fast fourier transform and audio playback respectively. This Project is implemented in C++ using OpenGL. For the given input audio file (.wav) the program will give the real time audio spectrum by performing Fast Fourier Transform (FFT) on the audio samples and plot the graph using OpenGL.