Issue with stream volume and Intel Sunrise Point-LP HD Audio

On my XPS 13 9370, when I change volume in Gstreamer apps (Rhythmbox, Totem, Lollypop, ...), I can hear artifacts for every change step:

• Does not happen with Firefox and others non Gsteamer apps
• Does not happen on my 7 years old XPS 13 (same software stack)

So I guess it's an issue between Gstreamer and my audio card.

Ask me any information you will need to check this issue.