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is it a bug ??

Posted: Fri Jun 02, 2006 4:46 pm
by arno
ok i ll try to explain it ... when i open a new project in DP4,61 with 1 mono track , i import on that track 1 mono sample ( a kick ) . i can push the fader of that sound till 3,35 db in Dp 4,61 without clipping .

the problem is that if i open one new project in dp 5 , the fader will clip at 0,90 db with the same sample !? how is it possible ?
that means that all my mono sounds in old tracks are clpping in dp 5 if the volume was strong ... i am lost ..
is it a bug ?
thanks for help
arno

Posted: Sun Jun 04, 2006 3:34 pm
by arno
nobody understood what i said , or nobody has the problem ? or maybe it has been discussed before ?(though i could nt find a post about that )....i cannot believe nobody has that problem , if you guys open in dp5 an old track done in 4,61 and if you have in it some mono channel with the volume indicator that was close to clipping but was not clipping , it should be clipping in dp5 and that s really weird and a big problem for me ! no ??
arno

Posted: Wed Jun 07, 2006 3:51 am
by arno
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Posted: Wed Jun 07, 2006 3:52 am
by arno
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Posted: Wed Jun 07, 2006 4:56 am
by stephentayler
OK I just did the quickest of tests, and it seems you are absolutely right!!

I did the test with a kick, and in DP4.61 I got overload at +3.8 and in DP5 it peaked at +1.4......

I will do a more thorough test later using test tones.

see you later......

Stephen

Posted: Wed Jun 07, 2006 7:50 am
by Timeline
What defines a clip? A light? or sound? If a master fader is involved, does the clipping change?

.9? is that above the fader marking 0 point?

Posted: Wed Jun 07, 2006 10:26 am
by stephentayler
OK here is the result of my tests so far... I will try and keep it simple as I tried lots of variations, using test-tones, kick drums, trim plugins and master faders....

with the 1 kHz tone, I found consistency between the levels and peaks between DP4.61 and DP5.01

with the transient test I discovered the following.

I put a kick drum in a mono track. I turned up the fader until the overload came on, and noted the fader value.

The overload came on about 2.5 db higher in 4.61 than in 5.01.

I tried the same test using a trim plugin instead of changing the fader.... as I increased the trim I found the same discrepancy between 4.61 and 5.01.

I then put a Waves PAZ meter after the trim.

As I increased the trim in DP5.01, the overload appeared on the PAZ meter at the same time as on the channel level meter.

As I increased the trim in DP4.61, the overload appeared on the PAZ meter at the same lavel as the above test, but the channel level meter did not show overload until the level was approximately 2.5 db higher....... so....

I can only conclude that the behaviour in DP5 is correct, and that the previous behaviour in DP 4.6 was in fact the bug!!!!

Hope that wasn••™t too confusing.... see what you think.....


Stephen

Posted: Wed Jun 07, 2006 4:46 pm
by arno
thank you stephen ! i thought nobody will ever answer to that thread ...
thanks for those info , actually i also discovered that dp 4,61 was wrong and dp 5 ok but i found out this using another method : i imported a sound that was fully maximize ( i mean that the sound was at 0 db , like mastered ) , so in dp4,61 it is possible to push the volume fader after odb without having clip ( red light ) and in dp 5 pushing the volume of the fader just 0,1 db and there is clip . so yes for sure dp 4,61 has really a strange behaiour with that ...and dp 5 is right .
it is so strange actually that dp 4,61 was doing that ...i never noticed that before ...so better in my case at least to not open in dp 5 those track i did in 4,61...
thank you again for confirming me that point ...

Posted: Wed Jun 07, 2006 4:59 pm
by arno
Timeline wrote:What defines a clip? A light? or sound? If a master fader is involved, does the clipping change?

.9? is that above the fader marking 0 point?
what i call a clip is when the red light appear on the volume fader . i discovered that strange thing for a mono channel , no matter where the volume fader of the master is ..
it is actually a really crazy thing .... the o db on mono channel in dp 4,61 and probably all versions before is just wrong !

Posted: Wed Jun 07, 2006 5:05 pm
by arno
and u are right stephen , the bug in dp 4,61 is 2,4 db on a mono channel which is quite big ....