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...

Jarry

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 <[email protected] <mailto:[email protected]>> 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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