Click/Pop/Crack when changing tracks

Valek

Hi,

Can confirm unfortunately there is an issue with pi 3 + pi-dac+ (just bought both new) with latest runeaudio (21/03).

pops/cracks on track change, also on seek, also on play start. not depending on volume (ie you hear them much better with low volume than on high, because level of pops is same all the time).

(on my old pi2 + hifiberrydac and rune 20141027 there is no such issue)

Valek

Hi,

Can further confirm same issues on alternative os'es, so it is not runeaudio in fault.

Have managed to minimize pops between songs (i mean when the songs change in playlist themselves) by increasing automute time in alsamixer. At least it seems so to me...

Pops on song start when you press play first time and on song change when you press next are still there.

Any ideas to guide me? Any chance dac or pi are faulty? Or that is normal? Which wd be strange as haven't noticed anything on older setup.

thanks
Valentin

hondagx35

Hi Valek,

Can confirm unfortunately there is an issue with pi 3 + pi-dac+

Pi-DAC+ from IQaudIO?

Frank

Valek

hondagx35 wroteHi Valek,

Can confirm unfortunately there is an issue with pi 3 + pi-dac+
Pi-DAC+ from IQaudIO?

Frank

Hello, Frank,

Yes, correct.

Thanks in advance if any suggestions.

Valentin

cletus3x

Hello,

I just recently built a runeaudio setup after messing around with Volumio and other applications.
I have an rpi3, 7" display output to a Geek Pulse via USB.

I works great and love the software however, I am getting the same popping issue when starting tracks or rebooting the system like the others on this thread.

Debug attached.
http://pastebin.com/d1xyaas7

Any suggestions would be appreciated.

-George

RB0135

Hi All,

Just like to report I have the same issue, however, not with the HiFiBerry DAC+ Pro but with the HiFiBerry Digi+.

I have both hats. Try the DAC+ works perfect, no clicks, pops, etc but when I attached the HiFiberry Digi+ hat, that is when the pops start.

What I think it might be (from my experiments) is when a song changes to another song with a different bitrate (EG: from say 44.1Khz, 16bit, 320kbps (MP3) to 192Khz, 24Bit, 5134Kpbs (FLAC) or from the Flac file to the MP3).

If the same bit rate songs are playing back to back (IE: 44.1Khz, 16Bit) then there are no pops, clicks, etc.

I wish there was an amalgamated list of fixes to try.

Thanks,
Rob

elmer

I have a Hifiberry Digi+ transformer version + Raspberry Pi 3B arriving hopefully in a couple weeks. If no solution is posted by the time I get it together, I'll see what I can figure out and post it here.

AndyF

I've got a RPi 2 with HifiBerry DAC+ and latest Image. There are silent but noticeable pops by manual changing tracks. Seems mpd close and open audio device on every change. Automatic changes by playing the queue don't have this effect.
A test with openelec has silent changes if you use the option to keep audio on.

Is this possible with rune too?

regards, Andy

srmrco

Same issue on my RPi 3. Clicks and cracks when switching between tracks. No issue when tracks change automatically

UPDATE:
I installed HifiBerry DAC+ Pro on my RPi3 and clicks are gone. Needless to say the sound is now a lot cleaner. My guess is that clicks and cracks might have been coming from RPi's DAC or audio drivers that Rune uses for analog output.

AndyF

Even Volumio produces clicks/pops during manual track changes. Seems to be a general problem with this DAC?

Andy

centro

Hi there,

I had also this noise when I connected my Raspi 3 (with HifiBerry DAC+ pro) to a PowerLan adapter. With this adapter I want to extend my wireless network because my WLAN was not strong enough. So I decide to install the PowerLan adapter. I tested both connections (wireless and cable) and everytime I heard this noise. It was really annoying.

After removing this adapter the noise was gone.

Now I'm using an Airport express to connect my Raspi 3 (with HifiBerry DAC+ pro) to my network and everything sounds good.

hope it helps.

cheers,
Hartmut

Valek

Hi All,

So am back from holidays and tried some more things. Unfortunately pops are still there which is quite annoying.

Can confirm it does not depend on source file (and either changing between different or same compression / etc files), it does not depend on player itself (same with Volumio and Moode, have still to try openelec maybe), does not depend on power, does not depend on network (wired or wifi).

Pops are still there on play start, manual track change and fast forward / rewind.

Anybody thinks if i get a Raspberry Pi 2 instead of 3 that would change something (ie my idea maybe there is still no full compatibility with 3) or more chances that the dac may be faulty?

RB0135

The DACS I don't think are 100% the issue from all my testing as I have mentioned, my HIFIBErry DIGI+ (with transformer) cracks/pops but not my HIFIBerry DAC+.

I have played around (to the point of I couldn't be bothered anymore) and discovered that it is either MPD or ALSA that is the problem of the cracks/pops and in my case it is only when at the end of the song, is still fading down that I get the issue. I find that if a song is completely silent at the end, I don't get the pops. Likewise, at the start of the song, if it is completely silent at the start of the track, I don't get pops either.

I had one song I ripped with EAC to Flac and it popped at the start and end. I could get it constantly to do it. I decided to rip it again with EAC. Didn't make a difference. I then ripped it with DB Power to Flac. No more pops at the start or end. After this success, I tried the same experiment with another song that I could always get to pop at the start and end of the track, and when ripped with DBPower, I don't have the problem either now with that song. There is obviously such a slight issue in the way EAC ripped it and DBPower ripped it to eliminate what causes the pops..

I just wish I could find the common denominater in why the EAC ripped version causes pops and the DBPower version doesn't.

This is just my experience, but maybe some brainy-ack reading this might jar something as to the reason.

AndyF

My RPi2 plays from USB-Stick - it is connected via Ethernet-Cable und only controlled by network; no files are played from network source. Silent pops occur independent from file format or ripping-software.

regards

Andy

Valek

Tried archphile + solution from here:

https://www.raspberrypi.org/forums/viewtopic.php?f=38&t=8783&start=25

audio_output {
        type            "pipe"
        name            "my pipe"
        command         "aplay -f cd 2>/dev/null"
        format          "44100:16:2"
}

Looks like pops are gone but unfortunately that solution has impact on sound seems to me and as now i can use only software mixer - that is too noisy and also no good.

hondagx35

Hi Valek,

has impact on sound seems to me and as now i can use only software mixer - that is too noisy and also no good.

and all your music gets resampled to "44100:16:2"

Frank

Valek

hondagx35 wrote and all your music gets resampled to "44100:16:2"
Frank

Hi Frank

Yes indeed, so that is for sure not what i want...

But so far have no idea what to try more =(

Phil123

Hi,

I am also getting a pop when changing tracks and I have reinstalled the image using the latest update from last year. I have an IQ Audio DAC+ and Raspberry Pi 2 (Model B). Can this actually be fixed? I was also getting a crackling noise at certain points in tracks yesterday but that seems to be gone now.

http://pastebin.com/14qx2sAu

EDIT: I have just noticed that 0.4 is in beta, is it fixed in that version?

Phil123

Yesterday I unplugged my RPi setup and took it downstairs to try wired instead of wireless + different cables etc to try and fix this problem. It still gave me pops after each track but then suddenly that stopped happening. I don't know why so I took it back upstairs and used the exact same setup as I did before and it's still playing without pops so.. yeah. I had rebooted it numerous times in the past with no success so I really don't understand how it's working properly now.

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