There is a delay in the audio on my Sony BDP-S350

I would guess that this problem is being caused precisely because your audio delay is set to '0'. Your TV will need to process the picture which will introduce a slight delay causing the picture to lag behind the audio. The audio delay setting allows you to delay the audio coming out of the dvd player so that it will match the delay that your TV will add to the picture. Try experimenting with the audio delay setting to try and match the picture and audio up. you may need at least 80 to 100 ms. My Samsung B650 requires 100ms.

Hi,
Did you check the sound setup? I know it can be setup for such a delay.
If I remember correctly (I don't have my DVD in front while answering) you access this setup by clicking on the remote control on the button on the right of the "HOME" button (I think this is the "OPTION" button): ont the pop up menu, you then have to choose the top menu (this is something like "SETUP"), and then choose sound: you will see that you can scroll there to delay or not the sound. Maybe, in your case, it is not set on the '0'.
Since I am not sure I remember correctly how to access this menu, I suggest you eventually look for it on your user guid.
Hope this helps

The above fixes will not work. I have the same problem and the delay is not with the TV, it is with the Blu-Ray player. So adding more delay to the player signal through the menu pick only makes the problem worse!!! What you need is a menu pick that accelerates the audio--which is impossible. Check it out for yourself. It's not just this player, either. Several other brands have the same problem--we need to let the manufacturers know that this is not acceptable. Send the unit back. Talk to their tech department. That's the best that you can do.