This page lists each device or control location where audio levels can be changed. It also lists the appropriate setting for each volume control. Use this document to learn which volume controls can be used to adjust the sound if the level is too loud or too quiet for your preference. Keep in mind that not all media sources are recorded at that same level, and it may be wise to test the volume with multiple video or audio files.
Each classroom's teaching station has multiple points by which to control sound that comes through the speakers:
- Program Audio
- Volume of audio which is desired to be played back from all electronic sources plugged into a teaching station and represented by the Source Buttons on the control keypad. Use the knob on top of the teaching station to control volume for these sources:
- Installed PC
- Laptop (user must connect the provided 1/8" TRS jack to their laptop's headphone jack)
- Document Camera (not currently configured for use with audio)
- VHS player
- DVD player or Blu Ray player
- Auxilliary Video input (jacks located on top of teaching station)
- Microphone Audio
- Wireless and/or wired microphones must be controlled separately from program audio to prevent feedback. Burns 103 and 201 currently have installed wireless microphones. These are the only rooms where turning Volume Knob #1 will produce any noticeable result. Burns 130, Porter Auditorium, has both a handheld wireless and a lapel wireless microphone. However only one of them can be used at a time. Use the buttons on the touchpad controller to adjust volume.
The goal is to be able to control all volume settings using only the readily available volume knob located on the keypad on top of the teaching station, on the wall, or with the buttons on the TouchLink controller.
The volume settings recommended above will provide enough dynamic range to allow for quiet audio sources to be
turned up loud enough to hear, and for loud devices to be turned down, using only the volume controls provided.
If the volume knob on top of the cart doesn't provide enough gain, and your source volume (like PC volume) is at it's maximum setting, try to increase the #3 Aux volume knob on the Extron audio mixer, located in the teaching station.
Each classroom's teaching station has multiple volume controls. Some are accessible to the user, while others have restricted access. Specifically, the AV switcher/scaler has volume settings that could be set for each input and output, but which have not been altered from the factory default, and do not need to be changed given the current set of input sources. Only qualified IMT technicians should attempt to change these internal volume settings.
Conference rooms, labs, and nursing wards that have a flat panel TV should control volume with the TV's accompanying remote control, or with their laptop keyboard buttons. Some of these rooms will have a wall-mounted Media Link Controller that includes the volume knob.
In some rooms--those in which the teaching station is on wheels--If the user is trying to connect an HDMI source (which includes audio and video on the same cable), teaching stations are not currently configured to pass HDMI sources through to the projectors or flat-panel TVs. The equipment in these rooms are 'digital-ready,' but are not fully digital systems. These will become fully digital with the next technology refresh.