Modeling Transient Attacks

It is possible to use some knowledge of acoustics to determine functions:

• e.g.: higher frequency harmonics are often the last to appear in the attack but the first to decay.
• implement using a separate envelope on each harmonic with a steeper attack/decay for lower frequencies.

The duration of the attack and decay greatly influence the quality of a tone:

• wind instruments tend to have long attacks, while
• percussion instruments tend to have short attacks.