Upsampling iPhone apps for music files

[zrmaxwell]

Is their such a thing as being able to upsample standard mp3s on an iphone using an application from the App Store? If so, what should i be looking at?

[theonlyratatoskr]

No app yet; I suggest processing audio files from your computer.

 

In any case, you should know that you could upsample but quality does not magically increase.

 

Example: upsampling 128kbps to 256kbps will only duplicate values of the file. 1-0-1-1-etc. will turn into 1-1-0-0-1-1-1-1-etc. You'd just be increasing the file size unnecessarily.

 

One would only upsample for compatibility purposes if for example you're editing video and you need all the files to be at the same sample rate.