Reading samples from RAM


I am working on project on sound generation in electric vehicle. I have stored short audio samples (ranges from 1-5 sec) in SD card and successfully able to read and play the wave files from SD card.

1) Now I want to read the samples from SD card into RAM and play it from RAM. I know the RAM of Arduino Due is 96KB which is enough for my project.

Can you just help me what should I do?