VOICE QUALITY DEGRADATION POINT ESTIMATION DEVICE, METHOD AND PROGRAM

• Main Author: SHINDO TADASHI
• Format: Patent
• Language: English; Japanese
• Published: 26.09.2019
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

To provide a voice quality degradation point estimation device capable of estimating a point where voice data quality is degraded on a communication route.SOLUTION: A storage unit 81 stores communication packets that are acquired by a communication device in which an observation point is set and are transmitted from a voice terminal. A delay time calculation unit 82 calculates delay time from the voice terminal to the observation point on the basis of the communication packets. A fluctuation calculation unit 83 calculates a fluctuation degree at the observation point on the basis of the communication packets and the delay time. A voice degradation point determination unit 84 determines a point, where a difference in delay time and fluctuation to an adjacent observation point is greater than a predefined reference, as a voice quality degradation point.SELECTED DRAWING: Figure 10 【課題】通信経路上で音声データの品質が劣化する箇所を推定できる音声品質劣化箇所推定装置を提供する。【解決手段】記憶部８１は、観測点が設定された通信装置で取得された、音声端末から送信される通信パケットを記憶する。遅延時間算出部８２は、通信パケットに基づいて、音声端末から観測点までの遅延時間を算出する。ゆらぎ算出部８３は、通信パケットおよび遅延時間に基づいて、観測点におけるゆらぎ度合いを算出する。音声劣化箇所特定部８４は、隣接する観測点における遅延時間およびゆらぎ度合いの差が予め定めた基準よりも大きい箇所を音声品質劣化箇所と特定する。【選択図】図１０