![]() Sometimes different velocities also create different timbres in an instrument for example, a MIDI flute may sound more frictional at a higher velocity (as if someone was blowing into it strongly), and more sinusoidal/cleaner sounding at lower velocities. " Velocity" is a number between 0 and 127 that is usually used to describe the volume (gain) of a MIDI note (higher velocity = louder). You can see that MIDI note 60 is middle C (C4). I've copied the table in fig 2 from NYU's website, it lists all the MIDI notes and their standard musical notation equivalents. " Note" describes the pitch of the pressed key with a value between 0 and 127. This message consists of two pieces of information: which key was pressed (called "note") and how fast it was pressed (called "velocity"). When a key is pressed the keyboard creates a " note on" message. These messages may be routed to a digital synthesizer inside the keyboard, or they may be patched to some other MIDI instrument, like your computer. ![]() The most common tool used to generate MIDI messages is an electronic keyboard.
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