Sound signal processing device and sound signal processing method

A sound signal processing device comprising:

• first level converting means for converting a level of an input sound signal;
• frequency characteristic adding means for adding a desired frequency characteristic to an output signal of the first level converting means;
• level control means for controlling a level of the signal having the frequency characteristic added thereto by the frequency characteristic adding means;
• second level converting means for converting a level of an output signal of the level control means;
• and
• control means for variably changing a parameter of the level control means and a gain of the first level converting means and a gain of the second level converting means,
• wherein the control means is adapted to variably change the parameter of the level control means and the gain of the first level converting means and the gain of the second level converting means as a function of a largest gain of the frequency characteristic added by the frequency characteristic adding means.

A sound signal processing method for use with a sound signal processing device, said method comprising:

• a first level converting step of converting a level of an input sound signal by use of a first level converter;
• a frequency characteristic adding step of adding a desired frequency characteristic to a sound signal having the level converted in the first level converting step by use of an equalizer;
• a level control step of controlling a level of the signal having the frequency characteristic added thereto in the frequency characteristic adding step by use of a level control unit;
• and
• a second level converting step of converting a level of the signal having the level controlled in the level control step by use of a second level converter;
• a variably changing step of variably changing a parameter of the level control step and a gain of the first level converting step and a gain of the second level converting step by use of a control unit as a function of a largest gain of the frequency characteristic added by the frequency characteristic adding step.

A sound signal processing method for use with a sound signal processing device, said method comprising:

• a first level converting step of converting a level of an input sound signal by use of a first level converter;
• a frequency characteristic adding step of adding a desired frequency characteristic to a sound signal having the level converted in the first level converting step by use of an equalizer;
• a level control step of controlling a level of the signal having the frequency characteristic added thereto in the frequency characteristic adding step by use of a level control unit;
• and
• a second level converting step of converting a level of the signal having the level controlled in the level control step by use of a second level converter;
• a variably changing step of variably changing a parameter of the level control step and a gain of the first level converting step and a gain of the second level converting step by use of a control unit,
• wherein the parameter of the level control step and the gain of the first level converting step and the gain of the second level converting step are variably changed as a function of a largest gain of the frequency characteristic added in the frequency characteristic adding step.