There is one video which plays but sound not coming in Mac I have one video which is playing well in Windows machine and also sound is coming. But, while I am playing same video on Mac or iPad, sound is not coming. In my Mac and iPad, I have tried other videos which are playing and also sound is coming.

In QuickTime Player, if I view details of the video which does not give sound, I cannot find AAC, whereas in other video, I find it.

Here is the screenshots: 


  Screenshot 1 shows the details of video that gives sound:





  Screenshot 2 shows the details of video that does not give sound:




What may be the reason for it? These videos are given by my client and both are giving sound in Windows machine but one of the 2 video not giving sound in Mac or iPad.
Mac and iOS only supports AAC and MP3 Audio CODEC, while my video has MPEG Audio layer 1/2 Audio CODEC. So, while converting/compressing this video, my client has selected audio CODEC to default rather than AAC.

Here are difference between those two video files:


  Screenshot 1 shows the CODEC details of video that gives sound:





  Screenshot 2 shows the CODEC details of video that does not give sound: