Playing different sounds for diff keys

[ZubiZubi]

Hi,
I am working on an app where I need to play different sound effects for different key strokes. So, I need some ideas how to implement this.

1. do i have to create different sound files for every key stroke ?
2. can i create one file with markers (like m4a, etc) ? but how i can play this file on iphone ? AVAudioPlayer lets me start playing at position, but it doesnt' let me stop after certain duration.

how is it implemented in games where they have to play so many sound effects ? one sound file for each effect ?

thx

[JoeBlaze]

Here is a quick reference and hope this helps.

Multimedia Programming Guide

For games they typically use OpenAL which will more than likely be overkill for your situation. As far as how many sound files AFAIK one asset/file is used for each sound most of the time.

You may want to focus on the AV Foundation
AV Foundation Programming Guide