Source: Tom's Guide US | Keywords: squeezing, more, life, out, of, your, notebook | Themes: Business Notebooks
- 1. Introduction
- 2. Battery Life Under Heavy Graphics Load
- 3. Battery Lifetime As A Function Of Graphics Card Clock Rates
- 4. 3D Games Drain The Battery Dry
- 5. Mobile CPUs Are Always Faster, But Not Noticeably More Energy-efficient
- 6. Persuading Mobile CPUs To Conserve Energy
- 7. Best Practice: How Power Scheme Selection Affects Battery Lifetime
- 8. Effects Of Display Brightness On Battery Lifetime
- 9. Repeated Data Copies To An External Hard Drive
- 10. Continuous File Reads From An Internal Hard Drive
- 11. Discussion
- 12. Working With An Optical Mouse
- 13. Discussion
- 14. DVD Video: The Right Player Software Extends Battery Lifetime
- 15. Discussion
- 16. Use Of The Optical Drive For Data Storage
- 17. Bad-quality Optical Media Shortens Battery Lifetime
- 18. Mobile TV Cuts Battery Lifetime In Half
- 19. Use Of WLAN, LAN, And PAN Components
- 20. Use Of WLAN, LAN, And PAN Components, Continued
- 21. LAN And WLAN: Which One Consumes More Power?
- 22. Bluetooth
- 23. Audio Playback: Best On A Headset Or On The Built-in Speakers?
- 24. Audio Playback, Continued
- 25. Webcam
- 26. USB Devices: Power Consumption Levels Depend Mostly On The Application Is Use
- 27. USB Devices, Continued
- 28. MobilityGuru's 10 Tips To Extend Battery Life
23. Audio Playback: Best On A Headset Or On The Built-in Speakers?

Nice and big: Sharkoon's Majestic 5.1 II headset
Those for whom a notebook is a constant travel companion may also want to enjoy 5.1 Surround Sound outside their normal listening room. But most notebooks seldom offer more than stereo sound. That's where a headset with a built-in 5.1 decoder chip can comes in handy. When using such a peripheral device the notebook's internal audio is becomes jobless.

This little box contains a 5.1 compatible audio chip.
We determined how much the use of a headset with a built-in external audio chip and multi-channel sound support reduces battery lifetime as follows: We played back the video DVD Apollo 13 using PowerDVD in an endless loop. We routed the audio output through the built-in speakers in the notebook for one series of measurements, then did the same thing with two different headsets. Headset 1 is designed for use at home; headset 2 is collapsible and designed for use on the road.

The Dynamic 5.1 headset from Sharkoon is collapsible.
When measuring battery lifetime we set the volume on the headsets to maximum.
- Previous page Bluetooth
- Next page Audio Playback, Continued