Sound is created by vibrations. In music world , all musical instruments creates different type of sound wave vibration. The Pitch is the frequency of sound wave vibrations and measured in hertz (abbreviated Hz).
Frequency is the number of waves that pass a given point in a certain amount of time. In other word , the total number of vibrations or oscillations made by the particles per unit time is called the Wave Frequency.
TimeStretching, is the process to modify or undo & redo tempo when pitch is unaffected. It can be used to remarkably slow down or speed up an Audio Event.
At first you have to create the a single instance of AudioContext Which can support multiple sound inputs.
That means a single AudioContext instance can manage single or multiple Sources to a single Destination.
The connection between Source and Destination doesn’t need to be direct, it can go through any number of AudioNodes like audio filter, effects, audio gain etc. which act as audio effects for the audio signal.
The Web Audio API provides a powerful platform for audio operation and controlling over web. You can built audio application over web which will run on any HTML5 support browser.
It’s provides the developer to choose audio sources, add audio effects and create audio visualizations.
Audacity is a free, simple, multi-track audio editor and recording Software, which available for different platforms like Windows, Mac OS X, GNU/Linux.
You can download this Software from here
Step One – Open audio file e.g. format wav or mp3 File -> Open
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Create a song by starting with any idea – whether it’s writing lyrics, sharing a photo or video, or simply describing your concept.
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