The Lo-Fi (low fidelity) effect emulates vintage digital hardware by reducing the sample rate and the number of bits per sample. You can also emulate vintage analog hardware by adding noise and adjusting the tone.
Sample Rate - The sample rate. Values lower then the maximum can create alias distortion.
Anti-Alias Filter - The amount of anti-alias filtering. This reduces the aliasing.
Sample Size - The number of bits per sample. Values lower then the maximum can create quantization noise.
Noise Color - The color of the noise. From white to pink.
Noise Amount - The amount of noise added to the signal.
Tone - The tone filter's cutoff frequency.