Thanks for your post.
But there is a missunderstanding. I do not load all the ambient sound samples into Fast-RAM if there is enough RAM, because i do not now how to do this in AmiBlitz3 :-( I can only load sound effects into Chip-RAM, that is the reason why Settle the World needs a fast Harddrive/ CF etc. to load and play all the sound effects. I am not finished optimizing this ambient sound part. For now the sounds are randomly choosen based on the terrain tiles on the map. For every terrain tile there are up to three different sound effects.
I have two banks with a fixed size in Chip-RAM were the sound effects are loaded in. Then the sound-length is calculated and the sound is played from the bank, so that for short sound no part of a previous (longer) sound effect will be played. Shortly after a sound effect was played the next sound effect is loaded into the bank.
Your post is very interesing, perhaps we should continue this discussion via emal or on our Settle the World Discord ;-) https://discord.gg/UJyZSJJqYg