Waveform generation device, waveform generation method, and program

A waveform generating method for generating a signal having an arbitrary waveform, comprising:

• storing in a waveform memory a plurality of pieces of waveform data that each include a sequence of signal values;
• (i) reading from the waveform memory a piece of waveform data serving as a basis for a waveform to be generated, from among the plurality of pieces of waveform data, (ii) performing a conversion by filtering the read piece of waveform data to obtain a piece of converted waveform data, and (iii) writing to the waveform memory the piece of converted waveform data;
• and
• reading the piece of converted waveform data from the waveform memory and outputting a signal having a waveform corresponding to the sequence of signal values of the read piece of converted waveform data.

A program causing an information processing apparatus to function as a waveform generating apparatus that generates a signal having an arbitrary waveform, the program causing the information processing apparatus to function as:

• a waveform memory that stores a plurality of pieces of waveform data that each include a sequence of signal values;
• a filtering section that (i) reads from the waveform memory a piece of waveform data serving as a basis for a waveform to be generated, from among the plurality of pieces of waveform data, (ii) performs a conversion by filtering the read piece of waveform data to obtain a piece of converted waveform data, and (iii) writing to the waveform memory the piece of converted waveform data;
• and
• a waveform output section that reads the piece of converted waveform data from the waveform memory and outputs a signal having a waveform corresponding to a sequence of signal values of the read piece of converted waveform data.