File Conversion Concepts
What is Digital Audio?
Digital audio is sound stored as numbers - the foundation of all music, podcasts, and voice recordings on computers
What is Bitrate?
Bitrate measures how much data per second is used in an audio or video file
What is Codec?
A codec encodes and decodes audio and video files - it determines quality and file size
What is File Compression?
File compression reduces file size by encoding data more efficiently
What is Container Format?
A container format is a file wrapper that holds video, audio, and subtitle streams together
What is Digital File?
A digital file is a collection of data stored on a computer - the basic unit of digital storage
What is Image Format?
An image format determines how pixels are stored, compressed, and displayed in digital images
What is Lossless Compression?
Lossless compression reduces file size without any loss of quality or data
What is Lossy Compression?
Lossy compression reduces file size by permanently removing some data - used for images, audio, and video
What is File Metadata?
Metadata is information stored inside files that describes the file itself - like date taken, GPS location, and camera settings
What is Pixel?
A pixel is the smallest unit of a digital image - millions of pixels make up every photo and video
What is Image and Video Resolution?
Resolution is the number of pixels in an image or video - more pixels means more detail
What is Digital Video?
Digital video is a sequence of still images (frames) played back rapidly to create the illusion of motion