I reacently got a new computer and got blender on it, i was trying to make an animation, and when i tryed to put the sound in, it didn't work. the video didn't work at all, unless i was rendering it in AVI, so i used the ffmpeg video thing, and set the audio codec to mp3, and the normal codec to png. but when i rendered it and tryed to play the video, it had no sound. im shure the sound was on, and my speakers where on. i don't know what's wrong, im using linux mint. does anyone know why this woun't work? any help is appreciated.
The solution comes from Richard Antalik, at developer.blender.org
Enable Sequencer in Output Properties > Post Processing panel.
In Blender 3.0 the Output Properties (tab) is where you define the size of your output, where to output your file to, encoding for video and audio, etc. You will also find in the same tab the Post Processing panel with compositing and sequencer check boxes. Put a check on the Sequencer.