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Memory access noise on Clip+

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Gunbuster:
Hello folks,

First I know this is a long known issue

http://www.rockbox.org/tracker/11907
http://forums.rockbox.org/index.php?topic=28150.0
http://www.hydrogenaudio.org/forums/index.php?showtopic=86306

But I found out that downgrading to 3.7 completely eradicated the issue for me, it may be still there but I can't ear it even if I try to !
Playing with different versions it seems the issue appeared since 3.8.1

Here is two record of what happen when I skip track rapidly and the buffer need to be refilled :

Clip+ on 3.13 : https://www.dropbox.com/s/y4t4c4xc3o663o5/clip%2B%20noise%203.13.wav
Clip+ on 3.7 : https://www.dropbox.com/s/ue58txa3lsbcaij/clip%2B%20noise%203.7.wav

The constant background noise is because of my bad line in, as you can hear the access noise present from the rockbox 3.13 record is completely absent from the 3.7 one.

I heave two memory cards, a 32gb class 4 from Sandisk and a 32gb class 10 from Transcend and the issue is the same for both of them, but the pitch of the hum vary depending of the album I play (may be related to the position of the file in the card.)

Now I can't help but wonder if the noise/flickering screen issue on the Fuze+ is related to this one. On the Fuze+ it's less annoying because the buffer is much bigger thus it needs to be refilled less frequently.

saratoga:
Since this only happens on a small number of devices I think you'll be on your own figuring out a solution. Going to be hard for other people to help without access to your player.

That said I'd be surprised if older versions of Rockbox sound different.

Gunbuster:
Hi saratoga, thank you for your answer.

I don't want to sound rude to you but I'm not sure denying/overlooking the problem exist is the way to go.

The problem exist and I proved that something changed that broken rockbox at least on my device since 3.8.1

The thing is I bought a Fuze+ considering that like you said, only a small portion of devices maybe affected, so I thought I would have more luck with another device...  but I'm a little baffled to encounter another issue that look very similar.

Not Rockbox fault though and I know this will be difficult to resolve if, again like you said, only a small number of devices is affected.

Then again I thought that bringing a new clew on this issue might revive some attention to it, maybe it wasn't that new after all  :'(

Would be nice if, since I'm not alone to have this issue, other peoples try the same thing as I did and test with an older version to see how it goes.

saratoga:
Noise on SD access is common to a large number of sandisk players and has been for years now. No idea about the fuze plus but it wouldn't shock me.

[Saint]:

--- Quote from: Gunbuster on July 05, 2013, 05:22:57 PM ---I don't want to sound rude to you but I'm not sure denying/overlooking the problem exist is the way to go.

--- End quote ---

At no point did anyone do so.

Saratoga did not deny the fact that this issue exists, his second post goes on to acknowledge that on some devices this is a well known issue. All that was said was that this problem only seems to occur on some players, and that without having physical access to a player that presents the issue it is unlikely anyone will be able to do anything about it. These are truths.

He also stated that he would be surprised if prior revisions lessened the issue (and, I would be, too), but this again is not saying that it does not in fact do so, or that you are not experiencing the issue.


[Saint]

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