A control method for an information processing system that comprises three or more multiple user terminals, each including a voice input unit and a voice output unit, connected via a network, and provides a virtual space including avatars linked to the multiple user terminals, respectively,
- the control method comprising:
- a voice generating step of generating voice data whose sound source is each avatar linked to each of the multiple user terminals based on a voice inputted into the voice input unit of each of the multiple user terminals;
- a voice data transmitting step of transmitting, to the multiple user terminals, the voice data whose sound source is each avatar;
- an association determining step of determining whether or not first voice data whose sound source is a first avatar linked to a first user terminal among the multiple user terminals is associated with a second avatar linked to a second user terminal among the multiple user terminals;
- a voice data analyzing step of analyzing the first voice data among voice data to be transmitted to the second user terminal by the voice data transmitting step, and second voice data excluding the first voice data;
- and
- a sound volume adjusting step of, in a case that it is determined in the association determining step that the first voice data is associated with the second avatar and it is analyzed in the voice data analyzing step that the second voice data disturbs the first voice data, adjusting a sound volume of the voice data to be transmitted to the second user terminal, which is outputted from the voice output unit of the second user terminal,
- wherein in the association determining step, in a case that the second avatar is placing his/her hand on his/her ear toward the first avatar, it is determined that the first voice data is associated with the second avatar.