1/ EQ your music — iOS devices offer equalisation, using the same presets as iTunes for Mac. These are settings that let you cut or boost individual volumes from the bass end through the mids to treble. On your iPhone/iPad, open Settings, scroll down for Music, Music and you’ll see EQ. One of the most common uses is to increase bass, since many earbuds are wimpy at the low end, although some headphones (ie, Beats) are actually a bit heavy in low frequencies for some.
If you apply equalisation to specific songs or albums using iTunes, that overrides any global setting you’ve chosen on your iOS device (or in iTunes for Mac). Try out different settings and see how they sound, as you may notice distortion with some presets. Also note that turning on EQ can affect battery life, as the iPhone has to do some additional processing.
2/ Sound check compensates for the differences in volumes between tracks — If you listen to music in shuffle mode or in a playlist you’ve cobbled together, you will have noticed some songs are louder than others. You raise the volume when a soft song comes on, only to be assaulted when the next song’s volume is much higher. In iOS, you can activate Sound Check in Settings>Music to automatically compensate for these differences.
Check the box to activate Sound Check. iTunes automatically analyses your music when you add it to your library to determine how much adjustment to make. Sound Check isn’t perfect, but it can really help. It adjusts the volume based on the overall level of each track, so a track with a lot of soft music followed by a loud crescendo may end up being too loud, and vice versa.
3/ Volume Limit — This is how you stop your earbuds/headphones reaching too high a maximum. Adults have been known to turn this on got their kids’ devices to protect their ears – actually, I have turned this on for myself.
4/ Teach Siri to only recognise your voice — Siri, the digital personal assistant on iPads and iPhones, has been spruced up in iOS 9 to provide more detailed and relevant answers, and has a few new features. The Hey Siri hands-free feature that debuted in iOS 8 has been improved so that it can do a better job of recognising your voice – of course it’s listening to everyone within earshot all the time.
Go to Settings>General>Siri and make sure Siri is turned on.
Tap the Allow ‘Hey Siri button (it turns green).
Siri asks you to say Hey Siri three different times, then say ‘Hey Siri, how’s the weather today?’ and finally, ‘Hey Siri, it’s me.’
After you’ve done this, tap the Done button.
This works with an iPhone 6s or 6s Plus even when they’re not connected to a charger thanks to the M9 motion coprocessor handling the onerous task of listening to you all the time– on previous models, the iPhone has to be connected to a charger to preface a question with Hey, Siri and the personal assistant gets to work.
5/ Manually enable Low Power Mode to maximise your iDevice’s battery life — iOS 9 does a great deal to automatically improve efficiency and extend battery life. You are now automatically prompted to turn on Low Battery Mode once your iPhone reaches 20%, and again at 10%. But if you know you have a long day ahead of you, you can manually enable iOS 9’s Low Power Mode at any point to maximise your iPhone’s uptime. Open the Settings app in iOS 9, then choose the new Battery parent menu. From here a toggle switch for Low Power Mode can be turned on.
Once enabled, Low Power Mode changes the battery indicator in the top right corner to yellow, reminding you your device is running in a more efficient state. Low Power Mode enables the Battery Percentage display in the upper right corner by default, and this cannot be turned off.
Apple’s new Low Power Mode reduces power consumption by turning off mail fetch, background app refres, and automatic downloads. In addition, some visual effects are reduced or disabled to squeeze more out of the device’s battery. Low Power Mode is also said to affect networking capabilities to boost uptime.
Benchmark tests of iOS 9 have found that Low Power Mode drops the processing power on an iDevice’s chip by about 40%. The result is a slower – but longer-lasting – experience.