[After Effect] No Audio In Preview. Tried Ram preview worked but...

[Bright]

Hello
Im new with AE so i have no idea where is the problem. I watched a lot of tutorials how to fix it but non of them worked. So then i saw in comment section that i should press "0" which fixed the problem but my audio became high pitched its sounds like chipmunks. Solution?

[Grapes]

Hello
Im new with AE so i have no idea where is the problem. I watched a lot of tutorials how to fix it but non of them worked. So then i saw in comment section that i should press "0" which fixed the problem but my audio became high pitched its sounds like chipmunks. Solution?

Only thing I can think of is that it plays back too quickly, I've never experienced something like that myself. After Effects isn't meant to play back realtime in any case (unfortunately). Premiere does that quite well but that uses a way different engine.