In the above example, Media Pro X is used for a regular audio clip that is going to be looped multiple times. It is set to loop a total of eight times.
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Gave me the impression that a typical drum kit can be just a collection of eq's, compressors, gate and reverbs.
And so the question is that, am I correct? And in general, what's the difference between this (i.e. song production without looping) and a typical drum kit?
While there are those that use audio compression plugins to create a drum kit type sound, the more experienced producers tend to use a looping program like REAPER or Propellerheads Reason to create all or many of the drum sounds. The song production usually comes after, and the drum kit has been created.
The drum kit is typically made up of a sound bank containing the different drum sounds like kick, snare, hi hats, etc. This goes into a mixer where the sounds are combined in different ways for different sounds.
An audio file that contains the drum tracks with the drum sounds on top of them can be exported, but usually the E-Trou drums are exported as a loop, either live looped or an edit loop where the notes are created by the looping program. Most non looping drum sounds are created in a similar way to how the drums are created with Audio clips and Sample based drum sounds. This means that there is a sample that is created and then the program edits the sound. There are some types of drum sounds that are sound design and are generated with a drum kit software application.
The most common type of drum kit sound is the kick drum that is a single audio sample played on the kick channel of the mixer. The kick can be programmed with multiple sample techniques to give the kick more punch. More complex drums like the guitar drum or the programmed bass drum are made up of individual part sounds and combined in different combinations.
So in answer to your question a simple drum kit like the one you created is simply a collection of different audio files that is edited together in a way that sounds good.
In general (although your example is a little unique):
An electronic music producer will make a lot of drum sounds, but they would be stored into a re-playable 'loop' format (for example ASIO loop of REAP 0b46394aab