A very simple, proof-of-concept 'audio recorder'. I just made it because I can. Bottom controls: The ' REC' button has three modes: Red: playback of whatever was recorded on this device. Hold down long to open playback settings. Yellow: Allows you to hear the 'pop' sounds of the current audio input. Green: Erases previous recording and starts new one. The button next to this one controls how the baseline filter is controlled. OFF: Bottom slider controls baseline PART: For every 48 samples, the baseline is set based on the ambient sound and the tolerance set by the bottom slider. NORM: For every sample, the baseline is set based on the ambient sound and the tolerance set by the bottom slider. REV: same as NORM, but the baseline is the inverted. Top slider ALWAYS controls the amplitude of a recording.