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• Make sure any connected audio cables are labeled "No Resistance".
• If you are using the USB Display function, turn on the Output audio from the projector setting in the
Epson USB Display Settings program on your computer.
• If you are using a Mac and you do not hear sound from an HDMI source, make sure your Mac
supports audio through the HDMI port. If not, you need to connect an audio cable.
• If you want to use a connected audio source when the projector is off, set the Quick Startup option to
Off and make sure the A/V Settings options are set correctly.
• If the volume for the computer is set to the minimum while the projector's volume is set to maximum,
the noise may be mixed. Turn up the computer's volume and decrease the projector's volume.
• Make sure the Audio Output Device option is set to the correct audio port for your video device.
• Check the Mic Input Level setting and lower it, if necessary.
• If you hear a hissing sound from your projector's speakers when projecting from a computer running
Windows 10 over a network, you may need to adjust the Windows 10 sound properties:
1. Right-click the speaker icon in the Windows taskbar and select Sounds.
2. Click the Playback tab, select the playback device, and click Properties.
3. Click the Advanced tab, set the sample rate and bit depth setting to 16 bit, 44100 Hz (CD Quality),
click Apply, and click OK.
Note: These steps may vary depending on the Windows 10 version you are using.
• If you turn the projector on immediately after turning it off, the cooling fans may run at high speed
momentarily and cause an unexpected noise. This is normal.
Parent topic: Solving Image or Sound Problems
Related references
Projector Setup Settings - ECO Menu
Related tasks
Shutting Off the Picture and Sound Temporarily
Solutions to Microphone Problems
If there is no sound when you use a microphone connected to the projector, try the following solutions:
• Make sure the microphone is securely connected to the projector.
• Adjust the Mic Input Level setting as necessary in the projector's menus.
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