High Speed audio cutout above 4.0x play speed

[whitte]

I'm trying to watch a series of corporate training videos recorded by a guy who speaks in a much slower dialect than I'm used to.
I can clearly understand his presentations at 4.0x, but VLC cuts out the audio at 4.1x and above.
I realize this is quite an obscure problem, but can anyone provide any feedback on this?
Is there any solution to this, or will I have to record the audio onto a cassette tape and play it back through an old cassette player?

Ive got a high end computer (i7-6700k, 32GB RAM), windows 10, dedicated Asus Xonar sound card, local (or network) MP4 video file (sorry, can't share it)
Using VLC 2.2.6

(Googling hasnt had much information about this issue)

Thanks!

[chouquette]

Could you try with a 3.0 nightly/RC ?

[whitte]

Ive just tried 3.0.0-rc6 "Vetinari" (vlc-3.0.0-20180117-0506-rc6-win64.exe) on 2 different computers with a local MP3, a local MP4 video (h264) and a local MP4 video (h265), with the same cut-out above 4.0x

system 1:
i7-6700k, 32GB RAM, win 10 pro

system 2:
i7-2700k, 16GB RAM, win 10 pro

additionally, I had a colleague check this issue too on a newer processor (i5-7700k) with the same results, but he's still on VLC 2.2x

[chouquette]

Oh, actually it's an arbitrary limit: http://git.videolan.org/?p=vlc.git;a=bl ... b=HEAD#l32

I suppose you should open a ticket on https://trac.videolan.org/vlc and ask for this to be configurable/bumped higher, as it would need to be discussed a bit before.