Audio Mixing Cheat Sheet 2016-11-27 General Mixing Vocal Inputs The input preamp gains are for the most part preset and don’t need to be changed. They are preset for 0 db on the fader which results in the input meter showing between -9 and -18 dB (i.e. just in the yellow). Various media files will have very different volume outputs (i.e. some videos are louder than others) so you will need to monitor this and tweak the fader to the ideal level range as needed. Buses – A collection of inputs grouped together All Buses are preconfigured, set to 0 dB and should not be adjusted (except for the Live Stream buses which the Live Stream Operator controls). DCAs – a master level control for all inputs that are assigned to a DCA group The Audio Operator regularly adjusts the DCA to control levels during a service. It’s important to recognize that a DCA controls the level of the assigned inputs prior to sending to any buses, whereas, trying to accomplishing the same thing with a bus is less effective because it only works for that one bus. Any other buses that also get that input would not be effective and can result in undesirable effects (example: live streaming). Reverb We use the effects process for vocalists to add reverb and apply sibilance to the input. All Solo & Handheld mics are already configured to send to the proper Reverb Bus & DCA. The audio operator only needs to control the DCA level and the Reverb Effect via the Fx1 Encoder (reverb delay effect) in the “Assign” section of the board. Speaker Mics There three mics we use for Pastors/Guest Speakers (Pastor1, Pastor2, LAV1). There’s a Bus & DCA called “Pastor.” You need to adjust the desired source fader to 0 dB depending on who is preaching. Leave it on and use the DCA to control the levels during the service (not the input). Scenes Scenes are saved snapshots of the entire sound board. You can quickly restore the baseline configuration or switch between scenes customized for a specific purpose or event (i.e. Christmas Play vs. Standard Service). “CBC Service” is the baseline Scene for everyday use. Use the Show Control “View” button to quickly access the Cues, Scenes or Snippets and apply the appropriate Scene. Mixing Choir Music Mixing choir music is unique from mixing most other audio sources because of the use of stage monitors with different output level needs. The sound board is configured such that the fader levels for the input/source (WMP & CD R,L) and Buses & DCAs (Stage & Choir Monitors) are preset and don’t need to be changed. All adjustment of the levels should be done with the preamp Gain encoder. This ensures that the level adjustments are applied uniformly across all routes. The associated faders and Gain encoder  are shown below. Adjust the Gain of the WMP input such that Output Channel 7 is approximately -20 dB [Note: Output 7 is the Choir Monitors]. |-----INPUTS-----|--------BUS-------|-------DCA-------| Stereo vs. Mono Music Tracks Choir music has both split tracks (voice usually on the Right channel & music on the Left channel) and stereo songs (separate performance music on both channels). Usually the filename in Windows Media Player indicates which type the file is. The choir typically performs with music only (Right = Mute, Left = Full) while a children’s group will sometimes play with a small vocal background (Right = Partial, Left = Full). A snippet is a group of focused setting changes for a given purpose. CBC has snippets for “WMP & CD Stereo” for stereo tracks and “WMP & CD Mono” to play the music channel of a split track on both output channels. Use the Show Control “View” button to quickly access the Cues, Scenes or Snippets and apply the appropriate Choir snippet for each song. In stereo, the WMP channels are link and all settings will effect both channels simultaneously (i.e. gain, faders, mute, etc).
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