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Audio quality level vs. signal-to-interference ratio in isofrequency FM broadcasting
Annals of Telecommunications ( IF 1.9 ) Pub Date : 2021-02-13 , DOI: 10.1007/s12243-021-00832-4
Marco De Piante , Stefano Boscolo , Emanuele Turco , Paolo Gardonio , Michele Midrio

Frequency modulated (FM) transmissions play a key role into radio broadcasting. This paper presents a study on the audio quality of demodulated FM transmissions corrupted by co-channel interference. A panel of listeners has judged audio signals containing the superposition of “desired” and “interfering” signals with different signal-to-interference ratios (SIR). The paper summarises the outcomes of a comprehensive campaign of audio tests, which provide detailed estimates of the perceived quality of interfered FM transmissions. Furthermore, the paper presents a thorough analysis and interpretation of the tests, which establishes a relationship between five-grade ITU-R BS.1284-2 QoS scale and signal-to-interference ratio (SIR).



中文翻译:

等频FM广播中的音频质量水平与信号干扰比的关系

调频(FM)传输在无线电广播中起着关键作用。本文提出了对被同频道干扰破坏的解调FM传输的音频质量的研究。一组听众已经判断出音频信号包含具有不同信噪比(SIR)的“所需”和“干扰”信号的叠加。本文总结了一次全面的音频测试活动的结果,该活动提供了对受干扰的FM传输的感知质量的详细估计。此外,本文对测试进行了全面的分析和解释,建立了五级ITU-R BS.1284-2 QoS等级与信干比(SIR)之间的关系。

更新日期:2021-02-15
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