Why the Rear Channels Stay Silent in a 5.1 Test on Windows
The front pair plays, the subwoofer maybe hums, and the center and both rear speakers sit there like furniture. You…
i hear a constant hiss in my headphones when i play nothing. louder with volume up. normal?
A hiss at silence is often the noise floor of the audio output, and sensitive headphones reveal it. Lower the system gain or use a better DAC.
Every audio output has a small noise floor. Headphones with high sensitivity turn that into audible hiss.
Using a quieter output or reducing the amplifier gain helps.
Checked by Alistair Cross on . How we verify answers
Electroacoustics Engineer at Sound Test
Lars Neumann is the Electroacoustics Engineer on the Sound Tester Audio Team. Conducts strict transducer distortion testing, frequency response matching, and ambient room noise profiling. Active in international acoustics engineering forums and Mastodon. Based in Germany. On Sound Tester he answers hum, noise and distortion discussions, and explains how room and wiring affect what you hear.
Each answer is written by the specialist closest to the topic and checked by a second team member. How we verify answers
Answers are free general guidance from the Sound Tester Audio Team and community. They are not medical advice. For hearing loss, ringing or ear pain, see a doctor or audiologist. Opening a device can void its warranty, so check the maker's support first for hardware faults.
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