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#1 2025-06-21 17:37:19

Gargantuar
Member
Registered: 2025-02-26
Posts: 11

HDMI audio sounds like chipmunks in PipeWire

The audio output from my HDMI TV sounds like chipmunks (high pitched stuttering, sometimes gaps). I'm using PipeWire/Wireplumber and Sway.

Setting frame rate from 60Hz to 24Hz didn't work, changing HDMI port on my TV didn't work, setting

default.clock.allowed-rates = [ 441000 ]

from default `48000` in `.config/pipewire/pipewire.conf` didn't work.

I'm out of ideas.

Last edited by Gargantuar (2025-06-21 17:53:05)

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#2 2025-06-23 07:36:27

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 75,287

Re: HDMI audio sounds like chipmunks in PipeWire

Is the sound ok on the internal speakers or headphones?
Do you have another HDMI device you could test (ie. whether this is specific to the particular Tv)?

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#3 2025-06-23 10:31:45

StarWolf3000
Member
Registered: 2025-06-23
Posts: 73

Re: HDMI audio sounds like chipmunks in PipeWire

Gargantuar wrote:
default.clock.allowed-rates = [ 441000 ]

Shouldn't this be

default.clock.allowed-rates = [ 44100 ]

?

441000 is indeed a very high sampling rate.


Mainboard: GIGABYTE B550 AORUS ELITE V2 | CPU: Ryzen 7 5800X | RAM: 32 GB
GPU: GeForce RTX 4060 8 GB (580.119.02 proprietary) | Display: BenQ BL2405 1920x1080
Kernel: 6.18.8 stable | Boot Manager: GRUB2 | DE: KDE Plasma | Login Manager: SDDM | Compositor: KWin

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#4 2025-06-23 12:20:31

seth
Member
From: Won't reply 2 private help req
Registered: 2012-09-03
Posts: 75,287

Re: HDMI audio sounds like chipmunks in PipeWire

But was apparently a mitigational effort anyway?

setting

default.clock.allowed-rates = [ 441000 ]

from default `48000` in `.config/pipewire/pipewire.conf` didn't work

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#5 2025-06-24 19:47:48

Gargantuar
Member
Registered: 2025-02-26
Posts: 11

Re: HDMI audio sounds like chipmunks in PipeWire

seth wrote:

Is the sound ok on the internal speakers or headphones?

Yes, both are ok (if I set output to `analog-stereo`).

seth wrote:

Do you have another HDMI device you could test (ie. whether this is specific to the particular Tv)?

Currently, no.

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#6 2025-06-24 19:49:04

Gargantuar
Member
Registered: 2025-02-26
Posts: 11

Re: HDMI audio sounds like chipmunks in PipeWire

StarWolf3000 wrote:
Gargantuar wrote:
default.clock.allowed-rates = [ 441000 ]

Shouldn't this be

default.clock.allowed-rates = [ 44100 ]

?

441000 is indeed a very high sampling rate.

Sry, I indeed have set `44100`, not `441000` (typo, my bad).

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