| 摘要 |
Public address systems or other systems for emitting audio signals, like music, speech or announcements, in different locations like supermarkets, schools, universities, auditoriums are widely known. These systems usually comprise an audio source, for example a microphone or a recorder, and a plurality of loudspeakers, which are locally distributed in the locations, for emitting the audio signal from the audio source. The invention proposes a system (1) and a method for emitting an audio signal (2, 8) in an environment (3), the system (1) comprising: an audio source for providing the audio signal (2, 8), at least one loudspeaker (4) for emitting the audio signal (2), at least one microphone (5) for receiving an acoustic signal (6) from the environment (3), whereby the acoustic signal (6) is based on the audio signal (2) and may comprise disturbing components (7), and with an analyzing module (13) for analyzing the acoustic signal (6) and for providing an intelligibility measure from an objective intelligibility measure method, whereby the intelligibility measure is used as a feedback signal. |
