Audio devices, formats and codecsPresentation Transcript
By Xufeng and Victor
What is a audio devices?
Example of audio input/output devices
What are the codecs?
Loss and Lossless codecs
What are audio devices?
It is a device that emits or receive sound.There are
Audio Input Devices: Allow a user to send audio
signals to a computer for processing, recording, or
carrying out commands.
Audio Output Devices: Refers to any device that
attaches to a computer for the purpose of
Audio Input devices
Input devices: Microphones, digital instruments.
Audio Output Device
What Is a Audio Codecs?
It is a computer program implementing
an algorithm that compresses and
decompresses digital audio data according to a
given audio file format audio format.
It is a compressed data that permits the original data
to be reconstructed from the compressed data.
Here are some examples: apple lossless audio
codec(ALAC), ATRAC Advanced lossless (AAL)
It is a data encoding method that compresses data by
losing some of it.
It is a file format that lay up digital audio data on
a computer system.
Types of formats:
Uncompressed audio format: It is one major
uncompressed audio format.
Formats with lossless compression: It stores data in
less space without losing any data.
Lossy compressed audio format: It is a greater
reductions in file size by removing some of the data.