TRTC audio quality problem

1、TRTC How to deal with the up and down silence ？

You can refer to A column on silent screening of uplink and downlink .

2、 How to deal with low noise ？

• if All the audience heard little , Is caused by upward factors ：
  • Check Windows and mac Of setCurrentDeviceVolume、 Platform wide setAudioCaptureVolume Interface volume Is the value less than 50, You can turn up the volume properly .
  • Check 3A To deal with the AGC Whether the auto gain is on .
  • Check whether it is caused by Bluetooth headset .
• if Part of the audience heard the sound was low , Is caused by downward factors ：
  • Check setAudioPlayoutVolume、setCurrentDeviceVolume Interface volume Is the value less than 50, You can turn up the volume properly .
  • The mobile terminal can check whether to call setAudioRoute API Switched the earpiece to play .

3、 The sound is stuttering ？

open Monitoring instrument cluster , View... In the audio tab ： If the receiving end and the sending end “ Equipment status ” Of CPU exceed 90%, It is recommended to close other daemons ; If there is obvious packet loss in the uplink and downlink of audio ,rtt The value fluctuates greatly , It indicates that the current user network quality is poor , It is recommended to switch the stable network .

4、 Why is there an echo ？

When the devices on both sides of the call are too close , Normal phenomenon , Please keep away from each other during the test ; Whether it is closed by mistake 3A To deal with the AEC Echo cancellation .

5、 The sound quality is poor or the sound is loud and small

If you have an external sound card , Open your ears , This problem occurs when wheat is connected , It is recommended that you close the ear loop when connecting an external sound card , Because the sound card usually has the ear return function .

6、Web There is an echo during the call 、 noise 、 noise 、 Small voice ？

When the devices on both sides of the call are too close , Normal phenomenon , Please keep away from each other during the test . When the other end hears Web There is an echo of the sound at the end 、 noise 、 Noise, etc , explain Web Terminal 3A Processing is not effective . If you use browser native getUserMedia API Conduct custom collection , You need to set it manually 3A Parameters ：

• echoCancellation： Echo cancellation switch
• noiseSuppression： Noise suppression switch
• autoGainControl： Automatic gain switch , For detailed settings, see Media tracking constraints .

If you are using TRTC.createStream Interface for collection , There is no need to set it manually 3A Parameters ,SDK Default on 3A.