Artifact in music, source or player?

kdan

Member
2015-12-28 10:53 pm
I listen to flac files with a Raspberry Pi + i2s DAC. I hear an cracking artifact in one of the songs. I tried with a different amp & speaker but the artifact is audible with those as well. I suspect either the recording is bad or the player... I cannot hear this artifact playing through a laptop's headphone out.
Please help identify the problem by downloading and listening this flac file with your setup: https://we.tl/AGUHsBgDxl (just for testing purposes, I hope it's not against the rules posting links to songs).
The cracking artifact is in the singer's voice, most pronounced at 0:54-1:16, 2:00-2:26, 2:58-3:13.
Thank you.
 

kdan

Member
2015-12-28 10:53 pm
Testing it further I realized that it could be the recording. Does this waveform supposed to sound distorted playing it bitperfect? Anyways, I enabled replaygain in the player (as the sound files contains replaygain data) and the cracking disappeared.[IMGDEAD]http://s23.postimg.org/vwlvjzokr/Manos_Hadjidakis_01h.jpg[/IMGDEAD]
 

kdan

Member
2015-12-28 10:53 pm
I'm using Moode Audio Player on the RPi2, with software volume control disabled. I have the Audiophonics I-Sabre DAC ES9023 TCXO, v1. If I enable software volume control, I don't hear the cracking until volume set at 92 (with replaygain off). Above that the cracking sound starts. There are some other tracks that are affected, but not many.