I have recorded a speech using my tablet voice recorder. The output is in m4a. When I open the recording (both in the tablet and in PC), the audio is distorted. Put in layman's terms, it's like he's speaking twice as fast and the pitch is consequently much higher Is there anything I can do to restore the file? This had not happened with previous recordings using the same device.
I'm a total stranger to the area. If you need any information about the file let me know. I used VLC, Media Player, and PotPlayer to open it on PC.