Rockbox Development > Feature Ideas

More advanced EQ - (Adjustable 10 Band, Pre-Amp ++)

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Llorean:
4) So why isn't our pre-cut enough? I asked for situations where pre-AMP reduces clipping, as we already have pre-cut...

5) What values do you expect to use for this? All you know is the EQ gain. So if the highest EQ band is 5db and there's no precut, the meter will say "5db".

6) I already addressed the fact that the hardware sounds different. You have one EQ file on each to account for the hardware differences, and you equalize the tracks directly to account for the mastering differences. You responded to this by repeating the conditions you gave last time, which I already answered.

Please, read what I'm saying carefully. At this point it's beginning to look like you aren't understanding what I'm asking. If that's the case, tell me where I've been confusing and I'll clarify.

isanggon:
Inocybe,,

I think 2,3,4,5 is aready exist(functions fully) on rockbox. Please read rockbox manual carefully.

And you can easily modify rockbox source to support 10band or more band eq, but there are hardware limit because device's prossor hasn't enough power to support it. Ipod hardly support 8band, overclocked h100 series hardly support 10band. Only gigabeat series can support 10band or more band eq(at least gigabeat s can support 22band eq or more).

Llorean:
isanggon - read what he's requested. We have no pre-amp for the equalizer. We have no per-track or per-folder equalization. We have no separate db meter (whatever that's supposed to be). He's already been told 2 and 3 exist. Please read the whole thread before responding, and carefully, to avoid adding additional confusion to what is already apparently a confusing state.

Inocybe:
4. "Pre-Amp" is just the word for the feature, just like how MediaMonkey uses it. The FEATURE can ADD gain and REDUCE gain. Of cource, by adding gain, you don't reduce the chance of clipping. Adding gain is also useful, as I have mentioned.  MediaMonkey example: 0 db is default, and you can add or detract up to 20 db's (-20 to 20 db).

5. Can't you measure the db's live? This will give the actual db result. Will strain the CPU a little, I guess.

6. Sorry for repeating myself. I see your point. Unfortunately, many songs are allready compressed or Flack'ed. Would take foreer to do it again. But again, this isn't a big thing.

Misunderstanding is possible, even after reading carfully (it' human) ;) BTW, I don't think my explanation was so bad (like point 1, 4 and 5).

Llorean:
4) you haven't said how adding positive gain is useful. We already have a volume control for making things louder. Why, exactly, do you need add gain, and not just cut it?

5) It can change from fraction of a second to fraction of a second, and won't give you any clue as to what's coming up, or what the next song will be like. Measuring it live is nearly useless.

6) Remember, new functionality makes the binary size larger, the code more complex, and can even reduce battery life slightly for people not using it. If it's something that can be fixed by doing a process _once_ to your music, that's generally a better alternative than trying to code a complex solution into Rockbox. Especially since the alternative solution solves it for you everywhere, rather than requiring you to make feature requests to people working on every other music software you use.

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