Software effect processor

The software effect processor is a computer program which is able to modify the sound coming from a source of sound in real-time.

Principle of operation

The audio signal from the input is transformed to the digital (a stream of numbers) in audio hardware and passed to a piece of computer memory, called buffers. Then it is modified according to a specific algorithm, which creates the desired effect. After this operation, the signal is transformed from digital to analog and sent to the output.

Latency

Latency is the main issue of real-time audio processing. It represents delay between reception of the input signal and its transmitting to the output.