[linux-audio-user] ecasound loop

Hi! I need some help on looping a sound using ecasound. I use the GNU/Linux system as an effect processor (reverb and eq) for a live show. Some of the list members point my attention to ecasound to do that, and is working great. Now I need to play some sounds in loop while doing the effect processing. Particullary, it would be great to press a key to start playing a sound in loop, until another key is pressed and that starts playing a second sound in loop, and so on. So I tried a simple bash script to do that (using aplay), but it didn't work as I get a sound interrupt for each loop. Then I made a program in C (using ncurses and sndlib) to do the job, that's almost finished and seems to work ok. And now the questions: ¿Is there a "natural" way of doing sound loops (in the way I discribed) using ecasound? ¿How can I "connect" the C program to ecasound (without using jack) while using it as a real-time effect processor? Thanks a lot and sorry for the long description. Martín.