| 摘要 |
A method and a system for monitoring the quality of digital audio broadcasting contents are provided to detect sound passing a transmission section in an original digital sound received from a PP and compare the detected sound with the original digital sound to measure audio quality, thereby improving contents quality. Digital audio is provided from a satellite terminal through a PP(Program Provider)(110), a preprocessor(120), an encoder(130), an MUX(Multiplexer)(140), a modulator(150), and a satellite antenna(160). An audio card unit(210) receives digital audio signals. A waveform comparing engine unit(220) compares an original PP sound extracted from the card 1 of the audio card unit with the digital audio signals extracted in each section in amplitude, length, the size of waveform, to measure an MOS value. A monitoring engine unit(230) monitors the state of a sound such as mute/silent/noise. A management engine unit performs audio capturing and data logging for a section having an error and performs statistic management and failure management based on managed data. An alarm management unit provides quality information to a manager and a contents provider. |
