{"id":4228,"date":"2019-06-13T23:55:43","date_gmt":"2019-06-13T21:55:43","guid":{"rendered":"https:\/\/demdlx704as001.ad.harman.com\/?p=4228"},"modified":"2023-06-27T15:04:14","modified_gmt":"2023-06-27T13:04:14","slug":"volume","status":"publish","type":"post","link":"https:\/\/audioworx.transfunnel.co\/old\/?p=4228","title":{"rendered":"Volume"},"content":{"rendered":"

The Volume and Mute audio object is used in the audio pipeline within the xAF framework. The purpose of the Volume and Mute audio object is to control the volume or mute in the audio pipeline.<\/p>\n

\"\"<\/p>\n

Use a custom native panel to change the Volume and Mute audio object parameters. The mode and tune type may also be selected at design time from within SFD.<\/p>\n

The AO supports in-place computation based on the core type.<\/p>\n

Volume and Mute Properties and Functionality<\/h2>\n

\"\"<\/p>\n\n\n\n\n\n\n\n\n\n\n
Properties<\/strong><\/td>\nDescriptions<\/strong><\/td>\n<\/tr>\n
# of Channels<\/strong><\/td>\nEnter the number of channels.<\/p>\n

In SFD, the number of channels is specified, and the number of input channels is equal to the number of output channels<\/p>\n<\/td>\n<\/tr>\n

Display Name<\/strong><\/td>\nEnter the display name of the audio object. It can be changed based on the intended usage of the object.<\/td>\n<\/tr>\n
Object Mode<\/strong><\/td>\n\n

Volume object operates in one of the three modes.<\/p>\n

\"\"<\/p>\n

One Set:<\/strong> In this mode, the volume object exposes these six values.<\/p>\n

    \n
  • Volume value<\/li>\n
  • Mute<\/li>\n
  • Invert<\/li>\n
  • Ramp Up Rate (in dB\/s)<\/li>\n
  • Ramp Down Rate (in dB\/s)<\/li>\n
  • Ramp Shape:<\/li>\n<\/ul>\n
      \n
    • \n
        \n
      • Jump \u2013 Ramping between two states is non-existent \u2013 immediate transition. The ramp up and down rates are ignored in this case.<\/li>\n
      • Linear \u2013 Ramping between two states is linear.<\/li>\n
      • Exponential \u2013 Ramping between two states follows an exponential curve.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

        These values are applied across all channels of the module. The ramping variables are only available via parameter tuning in this mode.<\/p>\n

        Multi Set:<\/strong> In this mode, Volume, Mute, and Invert values are available per channel. One set of ramp rates and shape however is applied to all channels. The ramping variables are only available via parameter tuning.<\/p>\n

        Multi Set Ramp:<\/strong> In this mode, Volume, Mute, Invert, Ramp Up rate, Ramp Down Rate, and Ramp shape values are all available per channel.<\/p>\n<\/td>\n<\/tr>\n

Ramp Tuning Mode<\/strong><\/td>\n\n

Ramping is applied when a transition or change occurs and is specified in terms of rate (ms\/dB) or time (ms).<\/p>\n

    \n
  • 0 \u2013 Ramp rate in ms\/dB.<\/li>\n
  • 1 \u2013 Ramp time in ms.<\/li>\n<\/ul>\n

    \"\"<\/td>\n<\/tr>\n

Boot State<\/strong><\/td>\n\n

The boot-up or start-up state of the Volume AO can be specified in 0 or 1<\/p>\n

    \n
  • 0 \u2013 Unmuted (default)<\/li>\n
  • 1 \u2013 Muted<\/li>\n<\/ul>\n

    \"\"<\/td>\n<\/tr>\n

Boot Level<\/strong><\/td>\n\n

The amplitude level of the Volume AO at boot-up or start-up time can be specified. This can range from -128 dB to + 20 dB. The default value shall be 0 dB.<\/p>\n

\"\"<\/td>\n<\/tr>\n

Mute state on volume change<\/strong><\/td>\n\n

The desired state of the AO when the volume parameter is changed while the object is in Mute state is specified here.<\/p>\n