An inputting section (30) inputs an instruction that the outputting section acoustically outputs the audio signals stored in the RAM (18).

When an extraction command DEQ is input, the QID is cleared from the virtual queue to be the input destination.

A user may input an extraction instruction by visually identifying a region of a sample visual form of data and selecting a manner to extract the content data in reference to the identified region.

A programmable signal processing circuit has an instruction processing circuit (23, 24. 26), which has an instruction set that comprises a demapping instruction.

According to said method, scan values written into a data memory (DS) are read out according to pre-determined readout conditions.

Two correlation procedures are carried out on the basis of the read-out scan values.