Unity: getVolume only returning a value of 1?

Unity
,
6

Gotcha. For context, the set/getVolume methods essentially manipulate the fader of the Bus. To get metering info, you have to dig a little deeper into the Core API - you can retrieve it by doing the following:

  1. Get the Bus’ underlying ChannelGroup with Studio::Bus::getChannelGroup
  2. Get one of the DSP units in the ChanneGroup’s DSP chain with ChannelControl::getDSP - typically FMOD_DSP_INDEX_HEAD, which is the closest in proximity to the Bus’ output
  3. Enable metering for the DSP with DSP::setMeteringEnabled
  4. Retrieve the metering info from the DSP with DSP::getMeteringInfo

A couple things to keep in mind:

  1. A Bus may not be active when you try to retrieve its ChannelGroup, so you’ll want to make sure that Studio::Bus::getChannelGroup returns FMOD.RESULT.OK before doing anything else. This can happen when no events routed to the Bus have been created yet, and you create a new Event routed to the Bus, as the FMOD system will need to update first to create the Bus and Event.
  2. The FMOD_DSP_METERING_INFO struct has float arrays of peak/RMS channel levels, but only the first numchannels amount of elements in the array are relevant.

Hope this helps!