The discussion centers on creating a highly sensitive sound sensor capable of detecting sound levels between 20-25 dB and converting them into electrical signals. Participants emphasize the importance of microphone selection, with a focus on its placement relative to the sound source, which is specified to be 10-15 meters away. The relevant frequency range for the application is identified as 500-6000 Hz, aligning with normal conversational levels. The sound pressure level mentioned is approximately 20,000 µPa, which corresponds to the sensitivity of the human ear.
PREREQUISITESEngineers, audio technicians, and hobbyists interested in developing sensitive sound detection systems, particularly for applications in surveillance, environmental monitoring, or audio recording.
Distance may be 10-15 m and the frquency is the frequency of normal conversation i.e about 500-6000 hz and the sound pressure level is about 20,000 µPa, just the same that the human ear is comfortable with...davenn said:
