Rockbox General > Rockbox General Discussion
Choppy scrolling
saratoga:
--- Quote from: CT71 on April 15, 2013, 06:04:36 PM ---Thanks Saratoga. But obviously I have questions. Stupid ones, maybe - but still some questions never the less. First off, is there a player that has enough CPU power to support a ten band EQ?
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Sure, anything made in the last 5 years or so should be fine.
--- Quote from: CT71 on April 15, 2013, 06:04:36 PM --- But heres the thing I do have questions on - since basically all I want from Rockbox is to use the full 10 bands and to just simply play music - every last other extra, or function, could be deleted for my purposes - is there a way to do this?
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Well IIUC, 4 of your bands are basically duplicates that could be removed, 3 are essentially doing nothing (0.5 dB correction), and 1 is probably useless (boosting frequencies you can't hear). So you're really only using 2 bands worth of actual EQ. The two that are doing something are boosting frequencies, and therefore probably distorting. Of course the adjustments are so small you probably can't hear any of the bands, so maybe you didn't notice that yet.
With that in mind I would probably question the extent to which you even want to use EQ at all, and certainly I would not believe that you actually have a use for 10 full bands. It seems like you probably would be best with the default settings.
I think the problem here is that we assumed that users understood how to use an EQ, when many do not. So in effect we give them just enough rope to hang themselves.
CT71:
@torne
So basically I'm screwed is what your saying - because I'm basically using Rockbox straight outta the box, except for the EQ.
@saratoga
Dude, I'm not trying to sound pissy here - if you want to help then I'm cool with that - but I told you these were not final settings at all, just turned on Rockbox and started messing around with the EQ to make sure I felt it was worth keeping Rockbox installed. It immediately became choppy, so I just stopped everything right then and there and never went back to the EQ. With that being said, I may not know shit about computers, but please keep your musical listening knowledge, or your own personal musical listening experiences out of the equation. I think your getting ones computer knowledge mixed up with ones knowledge on anything else the world has to offer. They're not one in the same. Even though these would not be the final settings - or hell, maybe not even close to them - I CAN hear a difference, they are NOT distorting, and I DO understand the technical jargon with basically anything related to the reproduction of music. Notepad, Word, CPU power - yeah, defintely not so much. I only tried my ipod with a pair of Sennheisers because thats what I listen to them through - but I also have a pair of AKG's, Beyerdynamic's, JVC's, V-Moda's, and Creative Aurvana's - and if I plugged in any one of those, I'd get a COMPLETELY different sound - heck, maybe I would even get some distortion. Point is, don't just assume things are happening the way you think they are, or should.
Like I said, not trying to sound pissy here - if my ipod cannot handle the EQ being on, and there are not other things on Rockbox I can disable - if these are truly the end all be all answers, then obviously I'll be stuck with the decision of whether or not the choppiness and the importance of the EQ are things that I can go forward with. I gather, from what is being said, that in the end the only two solutions I may have are - EQ or no EQ.
saratoga:
--- Quote from: CT71 on April 15, 2013, 07:28:25 PM ---started messing around with the EQ to make sure I felt it was worth keeping Rockbox installed. It immediately became choppy, so I just stopped everything right then and there and never went back to the EQ.
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--- Quote from: CT71 on April 15, 2013, 07:28:25 PM --- I am a first time downloader, and everything was working fine until about 30 minutes into my initial listening, then all of a sudden the scrolling became extremely choppy and basically useless to use.
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You know, if you realized it was the EQ setting that caused this problem, you might have avoided wasting so much of everyone's time with this thread. Or at least mentioned it!
--- Quote from: CT71 on April 15, 2013, 07:28:25 PM ---Even though these would not be the final settings - or hell, maybe not even close to them - I CAN hear a difference,
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I didn't say you couldn't hear a difference and I believe you can. Why are you even telling me this?
--- Quote from: CT71 on April 15, 2013, 07:28:25 PM --- they are NOT distorting,
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No, they probably are, you just don't notice it. Any positive gain will almost certainly cause distortion, although it may not be obvious particularly for such small gain changes. You shouldn't be doing that. Perhaps this is a good time to look at the manual?
--- Quote from: CT71 on April 15, 2013, 07:28:25 PM ---Like I said, not trying to sound pissy here - if my ipod cannot handle the EQ being on, and there are not other things on Rockbox I can disable - if these are truly the end all be all answers, then obviously I'll be stuck with the decision of whether or not the choppiness and the importance of the EQ are things that I can go forward with. I gather, from what is being said, that in the end the only two solutions I may have are - EQ or no EQ.
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This is absolutely ridiculous. You don't have to choose between choppiness or EQ. You're only having this problem because you're not using the EQ properly. We added a 10 band option because some people wanted to try it on modern hardware where the CPU hit is pretty small. But you don't actually have to use all those bands, and in fact you almost certainly do not want to. Lots of pro parametric EQs only have 4 or 5 bands! 10 is a really, really large number of bands for a parametric device. Its basically useless to have that many. The fact that you even think you need them suggests that you are probably really, really confused.
So with that in mind, let me ask: have you ever used a parametric EQ before? Do you realize how they're different then more simple non-parametric devices?
CT71:
"You know, if you realized it was the EQ setting that caused this problem, you might have avoided wasting so much of everyone's time with this thread. Or at least mentioned it!"
Look, Saratoga, I'm not trying to get into any argument with you. If you read every post from the start, I only found out a few posts ago that the EQ was the problem. And from there all I asked if there was a workaround to this. And now basically thats where everything stands. I'm not looking for a miracle - if my ipod is a dinosaur and cant handle the CPU, then so be it. If there are things on Rockbox I can disable to free up some power, then I'd like to know. When I started the post, these are all things I was unaware of - I never would have suspected that the EQ feature was so taxing on my particular ipod - if I had known this from the beginning then I obviously wouldn't have played stupid and asked for help. So in a nutshell, thats where I am right now. I'll look into playing around with all the subsequent EQ settings and see what happens with each one from here. Thanks - seriously, did not mean for it to go down this path.
wodz:
--- Quote ---saratoga [Saint]: Q is the width of the filter, if you can't control the width of the filter you need a lot of bands, if you can control the width of the filter you hardly need any bands
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This qute from our IRC channel should give you a clue.
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