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| English | Italian |
| conversational quality MOS | Conversational Quality MOS (A class of MOS values that takes into account listening quality in each direction, as well as bidirectional effects, such as delay and echo) |
| listening quality MOS | Listening Quality MOS (Within the VoIP industry, a commonly used class of MOS values that measures the quality of audio for listening purposes only, without taking into account any bidirectional effects, such as delay and echo) |