In one embodiment, the method includes receiving an audio signal including a prediction residual of a block of digital audio data and coded coefficient values. The particulate matter detecting apparatus has a reduced size, shows only a small measurement error, and can be produced inexpensively. Formulations are prepared with monomer, suitable cross-linkers, solvent, and a thermal or radiation responsive initiator. The frequency and phasing of the driving voltage also enables the LC circuit to discharge energy back into a power provider of the power supply so that energy does not build up in the LC circuit. The chelate group contains a phosphonic acid group, nitrogen, both of nitrogen and a phosphonic acid group or, both of nitrogen and a carboxylic acid group. Suction chambers 48 and 50 are disposed in the vicinity of the drum 20 that conveys the intermediate product, and suction openings of the suction chambers extend in a conveying direction of the intermediate product along an outer periphery of the drum 20.