Which term describes the point where the sound begins?

The term that describes the point where the sound begins is indeed EffectStartLocation. This is a crucial concept in audio processing and programming because it indicates the specific moment in the timeline when a particular audio effect will start to take effect on a sound clip or sample. By defining the EffectStartLocation, you can control the timing of when and how an audio effect, such as a reverb or a filter, will alter the audio, ensuring that it aligns perfectly with other elements in a piece of music.

Understanding this terminology is essential for effectively manipulating audio in software like EarSketch, as it allows for precise editing and the creation of dynamic musical arrangements. Different effects and their corresponding start and end points can dramatically change the character of the sound, making this knowledge fundamental for anyone looking to create polished audio compositions.