Developer:Davaar:VolumeService

From LinnDocs
Revision as of 13:40, 23 November 2010 by Eamonnb (talk | contribs) (Balance)
Jump to: navigation, search

Architecture Overview

The Volume service

Volume

Volume can be set to an absolute value or incremented/decremented in single steps. Volume can be adjusted in the range 0-100%. A setting of 80 represents 0dB (unity gain) with reference to the volume of the input signal. Each step adjustment in the volume represents a 1dB change (79=-1dB, 78=-2dB, 100=+20dB).

Volume Limit

The VolumeLimit parameter allows the master volume limit to be reduced. Any attempt to set the master volume above the VolumeLimit will reset the volume to the value of the VolumeLimit. Whenever the VolumeLimit is adjusted, the current master volume is checked and automatically reduced if necessary.

Balance

Balance defines the difference, in dBs, between any left and right channel outputs. Balance can be set to an absolute value or incremented/decremented in single steps. A setting of +1 will apply a -0.5dB offset to all left channels and +0.5dB offset to all right channels.

Fade

Mute

Characterstics

VolumeMax

VolumeUnity

VolumeSteps

VolumeMilliDbPerStep

BalanceMax

FadeMax

Volume Actions

Volume

The Volume action reports the current master volume setting of the product.

SetVolume

The SetVolume action provides a means of setting the Volume to a specific value. The minimum value that can be applied is zero. The maximum value that can be applied is determined by the VolumeMax and VolumeLimit settings. If an attempt is made to set the Volume above VolumeMax, an error will be reported. If an attempt is made to set the Volume above VolumeLimit, the Volume will be set to the VolumLimit value and no error will be repoprted.

Volume Inc

The VolumeInc action provides a means of increasing the Volume by 1.

Volume Dec

The VolumeDec action provides a means of decreasing the Volume by 1.

VolumeLimit

The VolumeLimit action reports the current VolumeLimit setting.

Balance

The Balance action reports the current Balance setting.

SetBalance

The SetBalance action provides a means of setting the Balance to a specific value.

BalanceInc

The BalanceInc action provides a means of increasing the Balance by 1.

BalanceDec

The BalanceDec action provides a means of decreasing the Balance by 1.

Fade

The Fade action reports the current Fade setting of the product.

SetFade

The SetFade action provides a means of setting the Fade to a specific value.

FadeInc

The FadeIncaction provides a means of increasing the Fade by 1.

FadeDec

The FadeDec action provides a means of decreasing the Fade by 1.

Mute

The Mute action reports the current Mute state of the product.

SetMute

The SetMute action provides a means of setting the Mute state.

Characteristics

The Characteristics action returns all six characteristic values of the product.

API Reference

Volume Service Description (XML)

Migration Guide

None.

Upnp Action Name Changes

None.


Obsolete Functions

None.