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GIG incorrect playback behavior

Posted: Tue Jan 15, 2013 1:08 am
by Bennett
I recently started playing with Linuxsampler after quite some time away and was very pleased to see its continued development so a BIG THANK YOU to the Linuxsampler team and all contributors!

I have noticed that some certain instrument articulations do not play back correctly. These are on East West Rare Instruments collection, which are GS2 format files. It is difficult to describe the playback, but it sounds like a synth patch rather than the sampled acoustic instrument. It only happens with a few articulations, but across multiple instruments in this library.

I still have a running GS3 system so I have confirmed that the "issue" is with LS. I can provide the GIG file directly to the dev team. I will try to post an audio comparison in the mean time.

Re: GIG incorrect playback behavior

Posted: Fri Jan 18, 2013 3:50 am
by Bennett
Here are some short renderings using Linuxsampler and GS3 of the Sarangi instrument from Quantum Leap Rare Instruments.

The sounds were rendered using an identical midi sequence, i.e. same velocity, timing, tempo, etc. The only post processing performed was normalization to -0.5 dB.

Note that both the attack and release are very different. The attack is very obviously different, but the release is also truncated on the LS rendering.

Gigastudio 3:

Any thoughts? I would be happy to provide the GIG file for analysis.

Re: GIG incorrect playback behavior

Posted: Sat Jan 19, 2013 9:23 am
by Andreas
Thanks for the report. I found a bug in libgig that could possibly be the cause for this (at least the attack part). I've just committed a fix, please test if it solves the problem.

Re: GIG incorrect playback behavior

Posted: Sun Jan 20, 2013 7:50 pm
by Bennett
Hello Andreas:

The bug fix corrected both the attack and the release of behavior! Thank you so much for your continued efforts!

Let me know if I can help out with any other testing.