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WebAPI/AudioChannels: Difference between revisions
→Use cases and requirements
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Ability for the system app to: | Ability for the system app to: | ||
* Turn down the volume of background audio rather than completely silence it when the notification channel is used | * Turn down the volume of background audio rather than completely silence it when the notification channel is used | ||
* Figure out which volume to modify when the user is pressing the volume buttons. | * Figure out which volume to modify when the user is pressing the volume buttons. | ||
Ability for apps to: | Ability for apps to: | ||
* Act as if it's occupying a channel without actually using a media element playing on that channel. This is useful for example to prepare for audio which is about to start playing, or to prepare for turning on the camera. | * Act as if it's occupying a channel without actually using a media element playing on that channel. This is useful for example to prepare for audio which is about to start playing, or to prepare for turning on the camera. | ||
=== Volume control === | |||
We also have a set of usage scenarios around volume control. We currently have 4 different volumes which makes it tricky to decide which one (or ones) to modify when the user presses the volume buttons. Here's a set of situations where we need to figure out which volume to control: | We also have a set of usage scenarios around volume control. We currently have 4 different volumes which makes it tricky to decide which one (or ones) to modify when the user presses the volume buttons. Here's a set of situations where we need to figure out which volume to control: | ||
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* When using the built-in fmradio or music app and audio is playing. | * When using the built-in fmradio or music app and audio is playing. | ||
* When using the built-in fmradio or music app and audio is not playing. | * When using the built-in fmradio or music app and audio is not playing. | ||
* User lowers volume to a very low volume, this likely either affects content or ringer volume. Suddenly there's an incoming notification. However since this is a separate volume this can be very loud which is surprising to the user. | |||
* User enters dialer and lowers volume. Then presses DTMF tone buttons and expects this to play at a low volume. | |||