Category Archives: Tips

Tip: No Sound? Check the Mute Switch!

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I’ve had a couple of Harp owners write to me saying that Harp isn’t making any sound, and that tapping the Volume control in the upper-right corner only produces a message to the effect that the volume control isn’t available.

The solution to this is simply to turn off the Mute Switch, which on iPhones is located above the volume control buttons on the unit’s left side. When the Mute Switch is on, the speaker will not play sound, but the headphones always play sound regardless of the switch setting.

Avoiding Interruptions

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When playing Harp, you may not wish to be interrupted by a phone call, alarm, or SMS. However, there is no way that Harp (or any iPhone application) can avoid these interruptions for you— you must do it yourself by deliberately silencing your iPhone or iPod. Here are the steps that Apple recommends:

  1. In the Settings application, ensure that the iPhone has Airplane Mode turned on.
  2. In the Calendar application, ensure that there are no event alarms enabled during the planned performance period.
  3. In the Clock application, ensure that there are no clock alarms enabled during the planned performance period.
  4. Do not move the Ringer/Silent switch during performance. When changing Ringer/Silent mode, an iPhone may vibrate, depending on user settings.
  5. Lastly, do not plug the iPhone into a power source during performance. When an iPhone gets plugged into power, it beeps twice or vibrates, according to user settings.
  6. Update: iOS 4.0 introduces “local notifications” which are alarms that apps can set themselves. So make sure none of the apps you use have any local notifications set to trigger during the planned performance period..