What's the matter with no sound on the telephone recording?

There may be the following reasons why there is no sound when recording with a mobile phone:

1. It may be that the volume of the mobile phone is too low, resulting in no sound. Try to turn the media volume of your phone to the maximum.

2. It may be that the microphone is blocked during recording, or the distance is too far, which makes it impossible to record normally.

3. It may be that other equipment interfered with the signal during recording, resulting in a failure during recording and damage to the file. You can re-record the audio file to see if there is sound when playing it.

4. The sound is too low when recording. It is recommended to speak louder and turn the volume button on the side of the phone to the maximum.

There may be something wrong with the mobile phone. Change the player or play other videos to see if the speaker is broken.

There are generally two ways to record with a mobile phone:

1. When you make a call, click Record on the call interface after the call is connected, and you can record the contents of the call between the two parties.

2. Use the recorder application that comes with the mobile phone, turn on the recorder, click the red button in the middle to start recording, click the red button again after recording, and finally save the audio file.