>if I want to convert some aiff files to mp3 to be downloaded from net…
> what specs should I aim at to keep size down but quality ok…
These are the settings I use for good quality speech in itunes:
Stereo Bit rate: 80kbps
Sample rate: 22.050kHz
NOTE: This results in a 40kbps file (the mono file ends up at half the stereo bit rate)
A 20 minute talk will be about 6Mb and sound good.
If I am ripping from CD for speech for my iPod, say a story, and size is not so important, I set iTunes to:
Which gives an output of 48kbps.The place you put these preferences in is iTunes:preferences and click on the advanced icon then importing tab then Setting:Custom you can set the various options according to what you want.