I have no audio with a video text. What will fix that

[iMore Question]

Received a video but can not get the audio with it.

 

[SwitchBeach]

What device sent the "text"?
What device received the "text"?
Does the video actually contain audio?
Is the video format compatible with the device that received it?
Is the device that received it able to hear audio on other received videos?
Are other sounds working properly on the device?