In no certain frequency, when I'm playing music through my Bose SoundLink Mini Bluetooth speaker from the Google Play Music app, it will sometimes skip and speed up/change pitch. It seems to happen on both WiFi and LTE. Haven't noticed it through plugged-in headphones.
I also noticed it when I had an AT&T Galaxy S4 through a Logitech Bluetooth stereo adapter and a Creative D100 Bluetooth speaker using the same app - Google Play Music.
I had both a Nexus 4 and Nexus 5 and never noticed it with either device.
All my devices have had the stock roms (non-rooted), and were always up to date. My Galaxy S5 is on Verizon. I haven't tried any music through the native music player app (such an mp3 or flac) but will update when I do.
Very annoying issue, especially for a musically sensitive person such as myself! I have sent multiple bug reports through the Google reporting process, and I guess I need to figure out how to send some to Samsung. Just wanted to see if anyone else had the same issues. Didn't see any other mentions of it on XDA. My apologies if there are similar posts on here and I didn't see them. Thanks!
Sent from my SM-G900V using XDA Premium HD app