[pulseaudio-discuss] Sound cracking and distorted...

Jarry mr.jarry at gmail.com
Sat Mar 24 19:24:45 UTC 2018

Not sure if I understand correctly (this is my first time trying
linux on desktop), but I listed my devices "aplay -L" first.

Then I tried to play test file once as:
"aplay -D pulse test.wav" (is this aplay->pulse->alsa->speaker?)
and then:
"aplay -D sysdefault:CARD=PCH test.vaw" (aplay->alsa->speaker?)
(my sysdefault is HDA Intel PCH, ALC892 Analog)

Results were the same: sound crackling every 3-4 seconds.
So as you said, it means problem is not with pulseaudio?
Then I will try to ask for help on alsa mailing-list...


On 24-Mar-18 15:18, Russell Treleaven wrote:
> Things to try
> Test pulseaudio with aplay to get a baseline
> you want to hear the crackling with aplay->pulseaudio->alsa->your speakers
> Then try aplay->alsa->your speakers
> If the crackling remains then the problem is not pulseaudio
> Try another sound card.
> use `aplay -l` to see if you already have two or more.
> For example I have two soundcards in my computer the builtin one for my 
> headset and my speakers are connected to my monitor which is connected 
> to my computer via hdmi.
> If you get stuck you could try the #pulseaudio irc channel.
> On Sat, Mar 24, 2018 at 10:11 AM, Jarry <mr.jarry at gmail.com 
> <mailto:mr.jarry at gmail.com>> wrote:
>     Hi PulseAudio gurus,
>     I'm desperately looking for solution of my problem, which is
>     terribly cracking/distorted sound comming from my desktop:
>     i5-2500k, asus p8z68-v mobo (z68 chipset), gtx-780, realtek
>     alc892 on-board sound, Linux Mint Cinnamon 18.3 installed...
>     $ lspci -v | grep -i audio
>     00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset
>     Family High Definition Audio Controller (rev 05)
>              Subsystem: ASUSTeK Computer Inc. 6 Series/C200 Series
>     Chipset Family High Definition Audio Controller
>     01:00.1 Audio device: NVIDIA Corporation GK110 HDMI Audio (rev a1)
>              Subsystem: Gigabyte Technology Co., Ltd GK110 HDMI Audio
>     Sound is really terrible. Every few seconds I can hear some
>     "cracking". It is also somehow distorted, like when you try
>     to put over-amplified signal to weak speakers.
>     I tested different audio/video players, different audio/video
>     media files, it is always the same. When I switch hard-drives
>     and put inside the old one still with windows7 installed,
>     everything works normally. I suppose my problem has something
>     to do with linux-driver and related software. I'm using default
>     /etc/pulse/daemon.conf, never changed any value.
>     Any idea how I could fix this?
> -- 
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