Abstract: An audio signal manipulator system for manually manipulating digital audio signals to simulate the audio sounds emitted when a user mixes vinyl records. The audio signal manipulator system includes a console for storing and manipulating a digital signal input. A multimedia input apparatus for receiving a plurality of digital signal inputs. The multimedia input apparatus is electrically connected to the console. At least one manipulating assembly for manipulating the media currently playing in the console. The manipulating assembly is operationally coupled to the console. At least one sensor mounted on the console for reading a rotational direction and a rotational speed of the manipulating assembly. The sensor selectively operationally engages the manipulating assembly whereby the sensor interprets the rotational direction and the rotational speed of the manipulating assembly to indicate the desired manipulation of the media being played.

Abstract: Preparatory to a printing run, a printed sample, i.e. proof, is produced on a proofing press using the ink and paper substrate contemplated for the printing run so that the printing quality, ink color, and other such aspects can be studied and, if need be, any adjustments made. In the within improved proofing press, the ink film to be tested is transferred from a driven roller to a similarly driven roller carrying the test paper substrate by a pivotally traversable ink-transfer surface of an elastomeric construction material, such that said driven rollers are each powered in rotation at a selected speed simulating the printing speed of the contemplated printing run, and the extent to which the elastomeric transfer surface is allowed to be compressed permits effective simulation of the contemplated printing run printing pressure. Accordingly, the proof sample of the within proofing press contributes to a more accurate forecast of the printing quality, etc. of the contemplated printing run.