How to work with FadeIn and FadeOut the playback music using iphone sdk

I am implementing an audio based application, in my appli开发者_运维百科cation I need to integrate FadeIn and FadeOut feature.

What I need to do is I need to use down the volume level of the music player when an audio of the application is started with high volume level. Is this possible?

Thank you, Chandra.

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I know its 5 months since you asked this question but still here is my answer.

I tried a rather stupid technique. I decreased the volume of the player by 0.1 recursively till it reached from 1.0 to 0.0. When it became 0.0 I stopped the player. It gave me a fade out effect. I hope this helps you. If you find a better way to do it, please do share it with me.