Troubleshooting the Basics of Telling Mono and Stereo Audio Apart

https://audio-quality-guide.rivertonbrief.com/posts/choosing-media-with-clear-licenses-for-your-audio-projects

Troubleshooting the Basics of Telling Mono and Stereo Audio Apart Small errors can begin with an ordinary case: a speech plays from one channel. Even a file that opens may not be the item you expected