Make rockbox emulate iriver OF WOW-preset?

[littlenick]

I got an iriver h120 with rockbox version 3.5.1.
Tried to make some Rockbox equalizer presets work.
Sorry to say I did not get happy with them at all. While original firmware presets give me a definite different listening experience with each different preset I cannot make out much difference at all with Rockbox presets. Only when I get back to " default" it seems to me that the sound gets somewhat less muffled (obviously the effect of rockbox presets - although I can hardly tell which rockbox presets does what).
Did some research in the forums and sorry, I am not happy with the answers I've seen that any of the higher ups at Rockbox give to the poor users that try to reproduce their listening experience with original firmware SRS/WOW settings.
While it is true that the listening experience is specific to the type of headphones you are using any equalizer setting will modify the output in the earphone socket on my player in a specific way.
What  - in my humble opinion - all these users (including myself) want who ask for anything similar to original firmware's SRS/WOW effects is to ask for some guideline/ so that rockbox will give give them a similar listening experience to original firmware, regardless what earphones they may use. They (I) did not ask for advice which headphones to buy - that would be a different question.
And many people do not have hundreds of dollars to spend on special headphones. This may be the reason why the SRS/WOW feature is so well liked - because it makes music sound reasonably (and of course this is a subjectve opinion)
great on even cheap headphones.

I use iriver original firmware mostly with WOW-preset and I'd still appreciate any figures and help how to adjust the  Rockbox equalizer, particularly how to reproduce the spatial cues of the iriver original firmware's WOW preset.

Regards,
littlenick

[saratoga]

Figure out what the WOW effects actually do and maybe we could implement them.

[wad11656]

This isn't enough information to reproduce the effects, but it's the basic information of what it does to the audio:

http://reviews.cnet.com/8301-10921_7-6384149-4.html

...I read somewhere that it "expands the range of your audio speakers" or something to that effect, "enabling your speakers to play to their full potential."

[saratoga]

...I read somewhere that it "expands the range of your audio speakers" or something to that effect, "enabling your speakers to play to their full potential."

Which doesn't mean anything at all

[wad11656]

...I read somewhere that it "expands the range of your audio speakers" or something to that effect, "enabling your speakers to play to their full potential."

Which doesn't mean anything at all

Meh...Yeah, it all sounded like a huge ol' fib to me... oh well just tryin' to pass along what I've heard.

[pondlife]

SRS sounds rather like our Crossfeed feature, more than an EQ thing...

pondlife

[saratoga]

SRS sounds rather like our Crossfeed feature, more than an EQ thing...

pondlife

I saw some RMAA plots of it a while ago.  Its actually a combination of crossfeed, EQ, and nonlinear effects (probably dynamic range compression).

[littlenick]

I wonder if some of the developers could tell us something about the delay that is used in crossfeed?
A simple calculation suggests that the "natural" delay for left-channnel audio into right earphone might be in the 0.5 milliseconds range:
Dividing an estimated 15 cm distance between left and right ear by the speed of sound (roughly 30,000 cm per second).

I don`t know how much delay is used in rockbox crossfeed and why rockbox doesn't give the user the option to adjust it.