Reason for >8 channels in an audio codec

1. What is number of channels in audio?
2. What is 3 channel audio?
3. How does an audio codec work?
4. What is the best codec for audio?

What is number of channels in audio?

Monophonic audio has one channel, stereo sound has two channels, 5.1 surround sound has 6 channels (five standard and one LFE), and so forth. Each audio frame is a data record that contains the samples for all of the channels available in an audio signal.

What is 3 channel audio?

Prior to surround sound, theater sound systems commonly had three screen channels of sound that played from three loudspeakers (left, center, and right) located in front of the audience.

How does an audio codec work?

An audio codec converts analog audio signals into digital signals for transmission or encodes them for storage. A receiving device converts the digital signals back to analog form using an audio decoder for playback. An example of this are the codecs used in the sound cards of personal computers.

What is the best codec for audio?

AAC and AptX are both steps up from SBC and are generally mainstream, though different devices might support either or both (AAC is most common on Apple phones and tablets, while AptX is the preferred standard for Android).