Audio is digital sound. It consists of waves that represent changes in air pressure and allow information to be conveyed through sound. Due to it being digital, audio can also be easily changed or altered.
The changes that I made to this song were to its pitch and audio. I changed the pitch from an F to a C. This changed the frequency by -23 percent. Finally I changed the sample rate to be slightly lower than the original to experiment with the quality of the song.
It's Time - Imagine Dragons
Interactivity is the ability for the user to control or manipulate digital media. It's purpose in multimedia is to allow people to manipulate various forms of media such as an image or video. This gives the user control over what they are doing and allows them to have choice over what they are creating. This is useful in many situations such as image editing and even teaching.
What is interactivity and what is its purpose in multimedia?