Apple iPhone iOS 8.4 User Manual
Page 166
Appendix A
Accessibility
166
For shortcut access from the Lock screen, go to Settings > General > Accessibility > Hearing Aids,
then turn on Control on Lock Screen. Use the settings to:
•
Check hearing aid battery status.
•
Adjust ambient microphone volume and equalization.
•
Choose which hearing aids (left, right, or both) receive streaming audio.
•
Control Live Listen.
Stream audio to your hearing aids. Stream audio from Phone, Siri, Music, Videos, and more by
choosing your hearing aids from the AirPlay menu .
Use iPhone as a remote microphone. You can use Live Listen to stream sound from the
microphone in iPhone to your hearing aids. This can help you hear better in some situations by
positioning iPhone nearer the sound source. Triple-click the Home button, choose Hearing Aids,
then tap Start Live Listen.
Use your hearing aids with more than one iOS device. If you pair your hearing aids with more
than one iOS device (both iPhone and iPad, for example), the connection for your hearing aids
automatically switches from one to the other when you do something that generates audio on
the other device, or when you receive a phone call on iPhone. Changes you make to hearing
aid settings on one device are automatically sent to your other iOS devices. To take advantage
of this, all of the devices must be on the same Wi-Fi network and signed in to iCloud using the
same Apple ID.
Hearing Aid Mode
iPhone has a Hearing Aid Mode that, when activated, may reduce interference with some
hearing aid models. Hearing Aid Mode reduces the transmission power of the cellular radio in
the GSM 1900 MHz band and may result in decreased 2G cellular coverage.
Turn on Hearing Aid Mode. Go to Settings > General > Accessibility > Hearing Aids.
Hearing aid compatibility
The FCC has adopted hearing aid compatibility (HAC) rules for digital wireless phones. These
rules require certain phones to be tested and rated under the American National Standard
Institute (ANSI) C63.19-2007 or C63.19-2011 hearing aid compatibility standards.
The ANSI standard for hearing aid compatibility contains two types of ratings:
•
An “M” rating for reduced radio frequency interference to enable acoustic coupling with
hearing aids that are not operating in telecoil mode
•
A “T” rating for inductive coupling with hearing aids operating in telecoil mode
These ratings are given on a scale from one to four, where four is the most compatible. A phone
is considered hearing aid compatible under FCC rules if it is rated M3 or M4 for acoustic coupling
and T3 or T4 for inductive coupling.
For iPhone hearing aid compatibility ratings, see
.
Hearing aid compatibility ratings don’t guarantee that a particular hearing aid works with a
particular phone. Some hearing aids may work well with phones that don’t meet particular
ratings. To ensure interoperability between a hearing aid and a phone, try using them together
before purchase.