just to underline how confusing this issue is- there is a max look ahead length parameter for each program
there is a current look ahead setting parameter for each program
there is a max look ahead length parameter for nebula master
then there is force offset that also somehow has something to do with look-ahead apparently, even though i can leave it alone and still get different look-ahead lengths
do we really need FOUR separate controls just to dictate look ahead? and why can't devs just set this stuff in their program?
why is look-ahead limited to 1.5ms in default master neb config, which isn't enough to be really useful, and why is it limited to 10ms of timed length? both of those things could be set by the program. i just don't get it.
ok i've done this test, using my rayphlex comp with the same thresh/ratio settings each time, and fastest attack setting each time-
A.wav was done with these settings in the master xml: <FORCEOFFSET> 1500 </FORCEOFFSET> <AHEADLENGTH> 1500 </AHEADLENGTH> then i went to 'edit' and 'glob', turned ahead to 'on' and set ahead to it's max length on that page, which was .687ms. you can see that the look-ahead did not catch all of the snare's initial transient.
B.wav used these settings in master xml: <FORCEOFFSET> 1500 </FORCEOFFSET> <AHEADLENGTH> 13000 </AHEADLENGTH> in edit/glob set the ahead to max length again, which this time was 5.968ms. here you can see that the transients were caught. actually they get caught with a setting around 2ms but you can keep increasing from there all the way up to 5.968.
leaving forceoffset at 1500 didn't prevent me from seemingly getting a full 6ms of look-ahead. maybe forceoffset is related to look-ahead somehow, but i don't see how it can be setting the max look-ahead length.
PS- i hope i don't come off as TOO crazy with these last 3 posts. this issue just really has me confused..
Parameter name: Force offset Description: When a program is loaded, every waveform is "peak-synchronized". Offset defines the distance between the start of the waveform and the peak position, it is expressed in milliseconds. MAST page name: OFFSET Master .XML name: FORCEOFFSET Factory value (in Master .XML): 1500 Guru extra information: For small values the transient section of the kernel could potentially be windowed in a wrong way.
Parameter name: Look-ahead buffer Description: This parameter controls the look-ahead buffer used by compressor and dynamic emulation programs in general. It is expressed in milliseconds. MAST page name: AHEAD Master .XML name: AHEADLENGTH Factory value (in Master .XML): 1500 Guru extra information: Increasing this parameter will increase latency.
Enrique Silveti. Acustica Audio customer and technical support.