Epson 821p - Manual (Page 21)

Setting Up the Projector 21
Playing Sound Through the Projector
Your computer probably has its own sound system; however, it may
not be adequate for your presentation. If you need more volume, you
can connect a computer audio cable to take advantage of the
projector’s built-in speaker. You can obtain a computer audio cable
(3.5-mm stereo miniplug cable) from a computer or electronics dealer.
1. Connect one end of the audio cable to the Audio1 jack on the
projector.
2. Connect the other end of the audio cable to your notebook’s
headphone jack or audio-out jack, or your desktop’s
speaker or audio-out port.
If you don’t need to make any other connections, you can plug in
your projector and turn it on. See page 30 for instructions.
note
If you’ve connected two
computers to the projector,
you can play sound from
both. Connect the audio
cable for the computer
connected to the
Computer 2/Component
Video 2
connector to the
Audio 2 jack on the
projector. Connect the other
end of the cable to the second
computer.
When you switch sources,
the projector automatically
plays sound from the new
source.