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This example demonstrates how to assign an index number to an incoming number. Storage to the coll object is triggered with the keypress object.

The matrix~ object is a multichannel audio mixer. It’s useful as a mixer of sounds, and also as an audio switcher/router, because you can route any input to any output, with built-in interpolation for smooth, click-free amplitude changes.

For this example to work properly you'll first need to download two other patches.

The concepts of mixing and crossfading, and the mathematics of how to accomplish them, are discussed and demonstrated in

This is effectively pretty much identical to Trigger sound cues from the computer keyboard, but a) it allows the user to trigger sound cues either

This shows how to prepare multiple sound cues for playback, and how to detect specific keystrokes in order to trigger the sound cues. It also shows how to initialize a program by triggering certain messages as soon as the patch is opened. The sound signal is sent through a multiplier to adjust the gain (volume).

This patch implements tap tempo using a "simple moving average" (SMA) calculation of time between taps. The patch alters the transport tempo based on the rate at which you tap the 't' key. The method takes the average of the most recent three time intervals between the most recent four taps. So, once you tap four times, it will set the transport tempo to your tempo, and if you keep tapping it responds to your changes but takes a couple beats to move gradually to your new tempo.

Instead of the user entering a tempo value by hand, it’s possible to have the computer measure the tempo at which the user is tapping the beat. Do do that, you simply need to measure the time difference between two events (taps).

This program demonstrates how objects in Presentation Mode can have a different location and appearance than they do in Patching Mode. Select the objects that you want to have appear in the presentation, and choose the Add To Presentation command from the Object menu. Then, to switch to Presentation Mode, click on the small easel icon at the bottom of the window (or type command-option-E). Now you see only the objects that will appear in the Presentation.

You can assign input data to have a different function at different times, simply by sending it to different parts of your program. For example, if you have a control device such as a MIDI keyboard or other MIDI controller with a limited number of keys, buttons, knobs, or faders, you can assign one control element to be the mode selector that changes the functionality of all the other elements.