A sound processing device comprising a sound pickup device (10; 10A; 10B; 10C; 10D) and a controller, wherein the sound pickup device (10; 10A; 10B; 10C; 10D) comprises: a housing (150; 150B; 150C; 150D); a mount portion (170; 170B; 170C; 170D) via which the housing (150; 150B; 150C; 150D) is mounted on an object (816; 818); a sound pickup comprising a microphone (113, 115; 117, 119; 113, 115, 119); a first output configured to output a sound signal indicating a sound input to the sound pickup; an installer configured to install the sound pickup on the housing (150; 150B; 150C; 150D); a sensor configured to detect a vibration transmitted to the housing (150; 150B; 150C; 150D); and a second output configured to output a vibration signal indicating the vibration detected by the sensor, characterized in that the controller comprises: a sound-signal input portion to which the sound signal output from the first output is input and configured to output an input sound signal; a vibration-signal input portion to which the vibration signal output from the second output is input and configured to output an input vibration signal; a strike detector configured to detect a timing and a strength of strike of the object based on a vibration waveform indicated by the input vibration signal output from the vibration-signal input portion and send a strike signal; a sound-signal producer configured to create a sound signal based on the strike signal output from the strike detector; a first sound processor configured to add a first sound effect based on a first set parameter to the input sound signal input from the sound-signal input portion and configured to output a first sound signal with the first sound effect; a second sound processor is configured to add a second sound effect based on a second set parameter to the sound signal input from the sound-signal producer and configured to output a second sound signal with the second sound effect; and a third output portion configured to synthesize the first sound signal output from the first sound processor and the second sound signal output from the second sound processor with each other and configured to output the synthesized sound signal. a housing (150; 150B; 150C; 150D); a mount portion (170; 170B; 170C; 170D) via which the housing (150; 150B; 150C; 150D) is mounted on an object (816; 818); a sound pickup comprising a microphone (113, 115; 117, 119; 113, 115, 119); a first output configured to output a sound signal indicating a sound input to the sound pickup; an installer configured to install the sound pickup on the housing (150; 150B; 150C; 150D); a sensor configured to detect a vibration transmitted to the housing (150; 150B; 150C; 150D); and a second output configured to output a vibration signal indicating the vibration detected by the sensor, characterized in that the controller comprises: a sound-signal input portion to which the sound signal output from the first output is input and configured to output an input sound signal; a vibration-signal input portion to which the vibration signal output from the second output is input and configured to output an input vibration signal; a strike detector configured to detect a timing and a strength of strike of the object based on a vibration waveform indicated by the input vibration signal output from the vibration-signal input portion and send a strike signal; a sound-signal producer configured to create a sound signal based on the strike signal output from the strike detector; a first sound processor configured to add a first sound effect based on a first set parameter to the input sound signal input from the sound-signal input portion and configured to output a first sound signal with the first sound effect; a second sound processor is configured to add a second sound effect based on a second set parameter to the sound signal input from the sound-signal producer and configured to output a second sound signal with the second sound effect; and a third output portion configured to synthesize the first sound signal output from the first sound processor and the second sound signal output from the second sound processor with each other and configured to output the synthesized sound signal. a sound-signal input portion to which the sound signal output from the first output is input and configured to output an input sound signal; a vibration-signal input portion to which the vibration signal output from the second output is input and configured to output an input vibration signal; a strike detector configured to detect a timing and a strength of strike of the object based on a vibration waveform indicated by the input vibration signal output from the vibration-signal input portion and send a strike signal; a sound-signal producer configured to create a sound signal based on the strike signal output from the strike detector; a first sound processor configured to add a first sound effect based on a first set parameter to the input sound signal input from the sound-signal input portion and configured to output a first sound signal with the first sound effect; a second sound processor is configured to add a second sound effect based on a second set parameter to the sound signal input from the sound-signal producer and configured to output a second sound signal with the second sound effect; and a third output portion configured to synthesize the first sound signal output from the first sound processor and the second sound signal output from the second sound processor with each other and configured to output the synthesized sound signal.