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Author: Inn Chan

A step by step guild to build a flash Audio Spectrum analyser


Getting started
Track Player and Spectrum analyser
The Track
Using Spectrum Lab to generate spectrum data


This tutorial will cover how to build a simple Audio spectrum analyser in flash with the help of other audio tools.

Getting Started

There are two audio toolz you'll need to download in order to follow this tutorial:

Spectrum Laboratory

This is a program that lets you analyse the spectrum of .wav files and generate log file that contains the spectrum data needed for our flash spectrum analyser.

This freeware can be downloaded from here. You'll also need to download Borland's VCL40.BPL if you don't already have it on your PC. After you have downloaded it, extract VCL40.BPL to your X:\windows\system\ directory.

If you want to know more about this program, please visit their web site at

dBpowerAmp Music Converter

With this program you can convert .mp3 files to .wav or vice versa. Go to their web site to download this handy converter.

When you have finished installing the above toolz, convert all the sound files that you will be working on to .wav files with the sampling rate of at least 16,000HZ. This will save you some time when you work with Spectrum Laboratory later.

This spectrum analyser was designed as a tutorial material, in which data are not handled in the most efficent way, it works better with short sound loops, track time below 1 minute should work fine. But once you get the hang of how it works, find a better way to arrange the spectrum data. We will discuss possible solutions to reduce the load in later sections.

Let's start by the main component - the track player and spectrum analyser.
» Level Intermediate

Added: 2002-08-28
Rating: 9 Votes: 32
(10 being the highest)
» Author
Multimedia Student eager to combine artistic skills, creativity and practical knowledge to innovate new concepts in interactive media
» Download
Download the files used in this tutorial.
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