Although positioning using sound waves has achieved high accuracy, specific sounds such as ultrasonic waves and spectrum-spread sounds are used as sound sources for positioning. The purpose of this paper is to clarify the location of various sound sources in an indoor living space, which is the actual usage environment. We propose a positioning method using TDOA (Time Difference Of Arrival) and CSP (Cross-power Spectrum Phase analysis) method and verify it experimentally. A reference point is determined from the reception points that receives a sound wave, and a difference in reception time of the sound wave between that reference point and each reception point is obtained by the CSP method. The position of the sound source is calculated from the detection result of the reception time difference and the position of the set reception points. An experimental system was constructed in which 30 reception points were set at a ceiling in an indoor environment (in the range of about 5m x 4m) with an actual usage range. In the beginning, the method of determining the reference point was investigated and its validity was confirmed by experiments. Based on this method, the authors conducted a positioning experiment by considering the actual application using microwave oven operation sound, fire alarm as alarm sound source, and drone flight sound from the viewpoint of its movement monitor and control. Although the positioning accuracy differs depending on the characteristics of each sound source, the results of positioning accuracy considered to be practically usable within the range of several centimeters to several tens of centimeters were obtained by the experiment.