Appendix 1:
 

Using a sampled sound involves more processes but is used to produce much different results than a sine wave. To use a sound sample an analogue sound must be digitally recorded onto a computer. All modern computers are capable of digital sound sampling. A sample rate must initially be set. CD's are recorded at a sample rate of 44.1KHz, which is 44,100 bytes (pieces) of information per second. This has become the de facto standard. The sampling process goes systematically through the analogue sound wave from start to finish. If the selected sample rate is 44.1KHz, then it will break up each second into 44,100 bytes and assign each byte a value depending on its amplitude at that point in time.
 

Appendix 2:
 

Convolution can be measured using Impulse Response (IR). It is the response to any given impulse. An easy way to describe this process is in terms of reverb. Think of an acoustic space and the reverb that is naturally created. This reverb can be measured as an IR value. This IR value can now be imposed on any sound wave. The resulting sound wave will sound as if it was created in this acoustic space. Every object and envelope contains an impulse response.