mastering audio for iPhone apps

[Douglas Nagel]

Hello all,

Does anyone have any suggestions for mastering audio for iPhone apps/games/etc? A friend of mine who works in app development came to me with an audio problem. He had created a sound in GarageBand for use in an app, and when he played it back over the iPhone external speaker, it sounded distorted. I'm guessing it's a limitation of the smaller speakers that cause the distortion. He had me take a crack at it and I tried limiting, compressing, etc, and couldn't fix the problem. I basically ended up telling him "pick a different sound" (he used some synth patch in GB). I've looked around the web and haven't found a whole lot of info on this subject. Anyone have any experience/insights into this?

Thanks!

[Emily02]

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[amergin]

Hello all,

Does anyone have any suggestions for mastering audio for iPhone apps/games/etc? A friend of mine who works in app development came to me with an audio problem. He had created a sound in GarageBand for use in an app, and when he played it back over the iPhone external speaker, it sounded distorted. I'm guessing it's a limitation of the smaller speakers that cause the distortion. He had me take a crack at it and I tried limiting, compressing, etc, and couldn't fix the problem. I basically ended up telling him "pick a different sound" (he used some synth patch in GB). I've looked around the web and haven't found a whole lot of info on this subject. Anyone have any experience/insights into this?

Thanks!

I'd say it's an EQ issue by the sound of it. Try taking out anything below about 100hz and see if that's the problem. There are a number of plugins which will replicate these bass frequencies higher up the spectrum for smaller speakers so you still get a semblance of bass.

[Gravity Jim]

I've been doing some music for iDevice gaming... Let me ask you:

How is your friend authoring the app (is he using a dev engine like Unity, or doing it straight up in C++)? What format was the sound in when incorporated into the app (MP3 or other)? Was it exported directly from GB to that format?