What is Time Domain Analysis? скачать в хорошем качестве

What is Time Domain Analysis?

So far we have analyzed sounds in terms of frequencies. This type of analysis, called "frequency domain" analysis, is very useful to analyze them. But there is another way to analyze sounds that is important to understand for the purpose of mixing, which is in terms of their waveforms. This type of waveform-based analysis is called "time domain" analysis. Time domain analysis essentially means looking at a sound not in terms of the sine wave that makes it up, but in terms of the patterns of disturbances that it causes in whatever medium it is traveling through: air molecules, a human eardrum, a speaker cone, or the electrical signal of an audio cable, for instance. The intensity of the disturbance that the sound causes at any given instant is called its amplitude. The sound of a sound is determined by its patterns of changing amplitude; its waveform, in other words. When you combine two sounds (i.e., play them simultaneously through the same medium), their time-domain disturbances are added together; the instantaneous amplitude of the resulting sound at any given time is a single mathematical sum of the instantaneous amplitudes of the separate sounds. This is why the final stage of mixing (i.e., combining the separate mixer tracks into one "master" track) is something called "summing." It literally is just a matter of taking the sum of everything. It is important to understand that any sound can be analyzed both in the frequency domain and the time domain. You can look at a sound as a collection of sine waves, or you can look at it as a pattern of disturbance in a medium. Both perspectives are useful for different things.