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Playback stutters with 10-band equalizer

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saratoga:

--- Quote from: Krismarzyk on March 20, 2013, 12:52:33 PM ---Don't get me wrong but don't understand sth. I've installed a software on my iriver h10 which is considered stable. This software has superb EQ which I would like to use. And now you are telling that actually this software is not fully operational on my DAP. So, can it be considered stable?
--- End quote ---

I'm telling you that you can't have 10 EQ bands each using 5 MHz, an audio decoder using 30 MHz, and a theme using 10 MHz on a 10 year old CPU that only runs at 80MHz. 


--- Quote from: Krismarzyk on March 20, 2013, 12:52:33 PM ---I'm considering replacing my iriver h10 with iPod Video. I've choose Video due to the fact that I will be able to install Rockbox on it and that I can do iMod.
Is the above problem common on iPod Videos? Or the problem raised  by starless is rather rare for Videos?

--- End quote ---

Exact same ancient CPU in the Ipod Video.  The H10 port is actually based on the ipod port. 

Krismarzyk:
saratoga, which DAPs, to which I could install Rockbox and use 10 band EQ, would you reccomend?

I've almost decided for iPod Video/iMod, but if the above problem will also appear in this DAP I will probably change my mind and I will look for other DAP (than Video).

[Saint]:
I'm not sure you're understanding what is being said...

Your device is capable of using the 10 band EQ. I tested playback with the 10 band EQ on another PP player (abbreviation of the Portal Player type SoC) with mp3@320 and the default theme. I did not, however, test with an animated theme - and this seems to be the tipping point in your case - my calculations (and those of others) indicated that my test case was only /just/ possible.

If you have lossless copies of your media, my suggestion would be to use a less expensive codec (flac8 can decode in realtime using approximately 50% less CPU than mp3@320 on this target), but if this isn't an option you're likely going to have to drop the animated theme. It may seem non-obvious, but animations (especially peak meters) cause more frequent LCD updates, which causes more CPU overhead...apparently just enough in your case to break decoding in real-time for you.

If you're dead set on buying a new device anyway, and were looking at an iPod Video 5th Gen iMod, I would instead spend approximately the same amount (or less) on a second-hand iPod Classic 1st Gen 160GB (the CE-ATA "fat" model). This device is readily available, and outperforms the iPod Video in every respect.


[Saint]

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