Huawei Exam H11-861 Topic 2 Question 31 Discussion

For Reverberation, The collect tone mainly uses direct sounds. An appropriate amount of reverberation makes human voice more vigorous. Therefore, a proportion of 90% direct sounds in the collect tone is recommended. However, the reverberation after 50 ms makes listeners difficult to understand. It is good practice that the sound energy reaches over 80% after 50 ms. ( )