| Subject | English | Japanese |
| comp., MS | Conversational MOS | 会話 MOS (A prediction of the narrowband conversational quality MOS (MOS-CQ) of the audio stream that is played to the user. This value takes into account the listening quality of the audio played and sent across the network, the speech and noise levels for both audio streams, and echoes) |
| comp., MS | conversational quality MOS | 会話品質 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) |
| comp., MS | Listening MOS | 受聴 MOS (A prediction of the wideband listening quality MOS (MOS-LQ) of the audio stream that is played to the user. This value takes into account the audio fidelity and distortion and speech and noise levels) |
| comp., MS | listening quality MOS | 受聴品質 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) |
| comp., MS | Network MOS | ネットワーク MOS (A prediction of the wideband listening quality MOS (MOS-LQ) of audio that is played to the user. This value takes into account only network factors such as codec used, packet loss, packet reorder, packet errors and jitter) |
| comp., MS | Sending MOS | 送信 MOS (A prediction of the wideband listening quality MOS (MOS-LQ) of the audio stream that is being sent from the user. This value takes into account the speech and noise levels of the user along with any distortions) |