Media​-Store Audio

Audio can be added to the playout of a Media​-Store channel either by loading the file directly, or by associating the audio file with the video you want it to play out with. When you load the clip, the switcher will automatically load the associated audio file.

Note: Global-Store Audio is only supported on the newer Frame CPU, 4810AR-002 (1022).

Keep the following in mind:

Keep the following in mind when working with Media​-Store audio:

  • Audio files should be 24-bit uncompressed WAV files at a 48kHz sample rate. Bit depth of 8, 16, or 32 are also supported, but playback bit-depth is not changed.
  • Audio is embedded in the ancillary data of the video stream that the Global-Store channel is included in.
  • The number of Global-Store Audio channels is the same as the Global-Store video channels.
  • Audio is loaded into the corresponding Global-Store Audio channel as the Global-Store video channel. For example, if you load a clip with audio in video channel 2 the audio is loaded into audio channel 2.
  • Loading a clip with audio into a Global-Store Audio channel only loads the audio and will not load the corresponding video.
  • An audio file does not need to be of the same length as the animation it is associated with.
  • A Global-Store channel can be loaded with audio only.
  • An ME-Store channel cannot load audio.
  • Audio is played the same way an animation is played.
  • The length of an animation is set by the video rate the switcher is operating in. Audio is fixed at 48kHz. If your audio and video is synched at a particular video rate, playing the media at a different rate will result in the audio and video being out of synch.
  • Audio only looping is independent of video looping.
  • Video with audio will only auto start when it is taken on-air, and not when it is loaded or the properties are changed (as with video only media).
  • Audio always plays out at 1x speed, even if the video is playing faster or slower.