Waveform not synced with audio in Audioplayer

Hi!

The Youtube-link is not available if you come to youtube over a german provider because of some stupid regulations here in Germany (music-rights). So I have to guess: Yes, I know that problem.
When doing my last Audioplayer project it was hard to work on the end of the song because of that "off-sync". The interessting part is: if you work (play/pause) on parts it is different to playing the whole track from the beginning on.
When I remeber right, this is explained with some problems on the programming language DMXControl is based on. In the past it has not been possible for Stefan (the head programmer) to fix it. I will try to ask him again once more if there is a solution now or if it is totally impossible. If that is true, we can only hope that on the long expected version 3.0 (or at least a following version 3.1/3.2) the Audioplayer is ready to work. The 3.x is completely new from the programming language to the user interface and all the concepts.
Sorry that I can't give you a solution right now.

Hoc

PS: Welcome to our forum. I had to read it twice to beleve that I heard your name before... Your displays are well known by some of the people here.

Hi!

Ok, thanks to a workaround I was now able to look at you video. BTW amazing how restrict those automated blocking-filters work just from that 47second-Video.

That is not the same thing I talked about. If I measured correct from your video, the gap between the sound and the visuals is around 500ms at the last cue. And this cue is just 33 seconds from the beginning!

So what I did is generating a testfile with beep-sounds on precise positions. First thing I discovered: It is much more complicated than expected to do this in mp3...
First test, mono (by mistake) 128kBit/sec 44kHz: to my complete surprise, no lag at the end of 6 minutes. If you like to try: http://www.hoc-media.de/dmx/beeps2.mp3 (nearly 6MB, to much to upload here).
Second try when I found out of the mono-mistake: 24kBit/sec 11kHz (smaller ;)): At the end after 5:55min exactly 1 second delay. Not in hearable Audio but in execution of cues. http://www.hoc-media.de/dmx/beeps_stereo_s2.mp3 (900kB)
Third try, the mono-file in 24kBit 11kHz: Same behaviour like in stereo 14kBit. http://www.hoc-media.de/dmx/beeps2_s2.mp3

So I don't know what happens when you try to follow my experiment. I put cues on the marked positions 00:05:55,000 secondwise to 00:06:00,000 and watched and heard what happend. In the middle of the tracks there are also 6 beeps at 00:03:00,000 to 00:03:05,000 and every minute (1,2,4,5) a single beep.
Do not be surprised, no starting beep. It starts with 60 seconds of complete silence...

Anyone else here for tests? Seems that Mono 128kBit/sec 44kHz is the best match.

Hoc

PS: When I zoom out completely and run the stereo-file from the beginning to the end, no delay can be observed. That matches on my first answer, the problem I already knew.

Yes, DMXControl 2.11 fixed some of the audioplayer bugs - couldn't see from the video which version you had.

On the other hand I just use WAV files for audioplayer tracks, so maybe it's a mp3 issue?

Hi,

yes, there's an issue with variable bitrates in mp3-files and DMXControl.

DMXControl cannot sync the Waveform and the Variable MP3-Bitrates.

You've to convert your files to fix-Bitrates like 128 kbit/s or 192 kbit/s or something else.

Regards, Souko