Battery life and high-bitrate formats | iLounge Article


Battery life and high-bitrate formats

Ask iLounge offers readers the opportunity to get answers to their iPod-, iPhone-, iPad-, iTunes-, or Apple TV-related questions from a member of the iLounge editorial team. We'll answer several questions here each week, and of course, you can always get help with more immediate concerns from the iLounge Discussion Forums. Submit your questions for consideration using our Ask iLounge Submit Form. We reserve the right to edit questions for grammar, spelling, and length.

View the complete Ask iLounge archives...

Q: I bought a 30GB iPod Video a week ago. Right from start, I could not get more than 6 hours of audio playback time on it. Is there something worng with the battery? I’m hoping that this isn’t standard when using Apple Lossless. Is it harder for the processor to decode?

- Max

A: We’d expect the 6-hour mark to be on par with expectations when using an all-Apple Lossless library, although not because it’s harder for the processor to decode. Rather, since Apple Lossless files are much larger than AAC or MP3 encoded songs, the hard drive must spin up much more frequently (approximately every song) rather than for lossy-compressed audio, for which the iPod’s 32MB buffer can fit a handful of songs at a time. This significant increase in mechanical movement is surely to blame for your less-than-spec battery life.

With this explanation, one might expect that an iPod nano (without a mechanical hard drive) might see very little battery life reduction when playing Apple Lossless-encoded files. Does this make it the better hardware choice for such users? Probably not, since today’s largest nano could only fit, perhaps, 200 Apple Lossless tracks. In our opinion, the best iPod choice for Lossless is the current 60GB iPod, with its large hard drive and larger, 64MB buffer, improving battery life.

« Transferring Music Store downloads

Preventing repeated songs while shuffling »

Related Stories

Sign up for the iLounge Weekly Newsletter


Recent News

Recent Reviews

Recent Articles

Sign up for the iLounge Weekly Newsletter


iLounge is an independent resource for all things iPod, iPhone, iPad, and beyond.
iPod, iPhone, iPad, iTunes, Apple TV, Mac, and the Apple logo are trademarks of Apple Inc.
iLounge is © 2001 - 2015 iLounge, Inc. All Rights Reserved. Terms of Use | Privacy Policy