How are sounds recorded?

Sounds are generated in the form of analog waves, which are continuous waves, which you'll see shortly in the upcoming figure. We can record surround sound through a recording device. For multichannel sound recording, you need to have certain methods to record music that can use a simple recording setup known as Deca Tree. Here, microphones are placed in a particular fashion to capture sounds from the left, right, front, and back of the source. There are also many processing techniques that can filter and convert sounds that are recorded to mimic the various components needed for each of the channels.

We take samples of the analog sound waves that are produced by a piano at close intervals (the rate at which the samples are taken between intervals is known as sampling frequency). The process of taking samples from analog waves to store them digitally is known as Pulse Code Modulation (PCM). These samples can be stored in uncompressed PCM-like formats or be compressed...