A sound processing apparatus, comprising: a processing unit that is configured to acquire an audio signal, to perform a correction processing on the acquired audio signal and to output the correction-processed audio signal to a sound emitting unit, the processing unit including a correction processing unit adapted to perform the correction processing including: an indirect sound adjusting processing in which a given signal processing is performed on the acquired audio signal so as to adjust an influence of an indirect sound to be heard at a sound receiving point among a sound emitted by the sound emitting unit, and the audio signal on which the given signal processing is performed is added to the acquired audio signal, thus providing an output signal, and a frequency characteristic adjusting processing in which a frequency characteristic of the output signal is adjusted, wherein: the apparatus is adapted to determine the frequency characteristic for the frequency characteristic adjusting processing based on a frequency characteristic of the indirect sound adjusting processing, and at least a part of the frequency characteristic for the frequency characteristic adjusting processing is set to be a reverse characteristic of the frequency characteristic of the indirect sound adjusting processing. a processing unit that is configured to acquire an audio signal, to perform a correction processing on the acquired audio signal and to output the correction-processed audio signal to a sound emitting unit, the processing unit including a correction processing unit adapted to perform the correction processing including: an indirect sound adjusting processing in which a given signal processing is performed on the acquired audio signal so as to adjust an influence of an indirect sound to be heard at a sound receiving point among a sound emitted by the sound emitting unit, and the audio signal on which the given signal processing is performed is added to the acquired audio signal, thus providing an output signal, and a frequency characteristic adjusting processing in which a frequency characteristic of the output signal is adjusted, an indirect sound adjusting processing in which a given signal processing is performed on the acquired audio signal so as to adjust an influence of an indirect sound to be heard at a sound receiving point among a sound emitted by the sound emitting unit, and the audio signal on which the given signal processing is performed is added to the acquired audio signal, thus providing an output signal, and a frequency characteristic adjusting processing in which a frequency characteristic of the output signal is adjusted, wherein: the apparatus is adapted to determine the frequency characteristic for the frequency characteristic adjusting processing based on a frequency characteristic of the indirect sound adjusting processing, and at least a part of the frequency characteristic for the frequency characteristic adjusting processing is set to be a reverse characteristic of the frequency characteristic of the indirect sound adjusting processing. the apparatus is adapted to determine the frequency characteristic for the frequency characteristic adjusting processing based on a frequency characteristic of the indirect sound adjusting processing, and at least a part of the frequency characteristic for the frequency characteristic adjusting processing is set to be a reverse characteristic of the frequency characteristic of the indirect sound adjusting processing.