Thank mackrackit!!! I upload the files there to watch it and simulate it.
Friend Henrik; Initially I did was play the sound file in real time. That is, the read 10-bit ADC, and simultaneously reproduce it in the DAC 10 bits. Until here, all right.
The issue was that after cosidere in store this data in a memory space pra see s could play, obviously, I would have escpao that reproduction uqe 20Khz frequency range in ... I'm thinking of another way to deal with this to see if I get to the main point ... a kind of chip corder, but entirely made ​​in PBP
regards

SOUNDbasic.rar.txt