A bad HDMI cable affects both audio and video being passed. AV quality does not change but the signal may intermittently cut out.
Can a bad HDMI cable affect audio?
Inconsistent Sound or No Sound at All Both scenarios are signs your HDMI cable has gone bad and needs a replacement. There are some less obvious signs of a bad HDMI cable, too. Check the HDMI cable’s connector—bent prongs can not only interfere with your picture or audio, but also damage your television.
Can HDMI cable distort sound?
No, HDMI cables will sound identical, if using v1. 3 or higher (most are at least v1. 4). If the cable says it has Ethernet (printed on the cable), then you’re good.
How do I fix the sound on my HDMI cable?
Click Sound, and then click the Playback tab. The Sound window opens. On the Playback tab, select the output device connected with the HDMI cable, and then click Set Default. The HDMI icon displays in the Sound properties in Control Panel and the HDMI port can now receive audio.