Glitchy audio after resume playback (split from: New USB mode questions)

[ThaCrip]

just a side note... there is new bootloaders for your Sansa e250 (i have same player) so it never boot original firmware unless you specifically tell it to when the power is off by holding the left button on the d-pad when powering it on

p.s. to anyone... earlier i was using my e250 and for the first time ever while playing (i might have been pausing it here and there and when i resumed etc) the sound basically got all static etc etc so i had to stop it and resume to get it back to normal again.... happened twice earlier... prior to this i never had it happen so it might be some glitches in recent-ish builds?.

EDIT: ... i just noticed when i power it on, on the main Rockbox screen just before it fully loads it changed between 2 different versions on the screen (for the build and date etc) ... i might do a clean install of a recent build and see if it acts up in the near future.

[jgsprenger]

p.s. to anyone... earlier i was using my e250 and for the first time ever while playing (i might have been pausing it here and there and when i resumed etc) the sound basically got all static etc etc so i had to stop it and resume to get it back to normal again.... happened twice earlier... prior to this i never had it happen so it might be some glitches in recent-ish builds?.

I noticed the same here on my e280... more than twice, I got the weird static and had to shuffle/jog the mp3 file to clear the static...(I just thought it was a crappy mp3 recording?) .... i have r20185 loaded.

EDIT: ... i just noticed when i power it on, on the main Rockbox screen just before it fully loads it changed between 2 different versions on the screen (for the build and date etc) ... i

did not see this

[epithetless]

p.s. to anyone... earlier i was using my e250 and for the first time ever while playing (i might have been pausing it here and there and when i resumed etc) the sound basically got all static etc etc so i had to stop it and resume to get it back to normal again.... happened twice earlier... prior to this i never had it happen so it might be some glitches in recent-ish builds?.

I noticed the same here on my e280... more than twice, I got the weird static and had to shuffle/jog the mp3 file to clear the static...(I just thought it was a crappy mp3 recording?) .... i have r20185 loaded.

EDIT: ... i just noticed when i power it on, on the main Rockbox screen just before it fully loads it changed between 2 different versions on the screen (for the build and date etc) ... i

did not see this

I've noticed both of those things myself. On my e280, MP3 playback turns to crackly static sometimes (but not always -- so reproducibility is elusive) after resuming playback from a lengthy paused state. Typically, simply re-pausing then un-pausing has returned playback to normal.

The two Rockbox boot screens, as I see it, show 1) the test bootloader version number, and 2) the Rockbox build number. The latter has always happened; the former is new to the new bootloader.

[ThaCrip]

as said above... yes, i had the static issue from 'a long pause state' to is when i think it mainly happened if i recall correctly.



as said here, "The two Rockbox boot screens, as I see it, show 1) the test bootloader version number, and 2) the Rockbox build number. The latter has always happened; the former is new to the new bootloader."

so apparently (as said above) the new bootloader causes it to show 2 different dates/build numbers?.

as for the... "(I just thought it was a crappy mp3 recording?)" ... im pretty sure that's NOT the issue because i never had this issue up until recently, v3.1 works perfect and never done anything like this... heck, Rockbox has been pretty much flawless for me up until this recent static glitch.

[Llorean]

The bootloader shows its own version number, not the Rockbox build number. It always has. since it's built from Rockbox sources, unless we've changed the string (as we do for release bootloaders usually) it will have a version number that looks like a Rockbox version number.

So yes, you should always expect to see a different version number in the bootloader than after the bootloader.

[AstroBoy]

I had the static issue after a long pause.  I could pause and play, but still got static.  I powered it down, on power up it said battery was too low.  I assumed the issue was related to the battery voltage being too low.  I do long pauses (hours) all the time and this has only happened once.  I have auto-off disabled.

[Llorean]

Please track down exactly which version the static issue starts with. It's unlikely that it's caused by the USB support.

[AstroBoy]

I have version r20107-090225.
I don't know what version I had before that.  Does rbutilqt-v1.0.8 keep any history?

I don't know how this can help, but...  The static was not white noise.  Not even static.  Just random tones and chirps and clicks.  I have heard simular sounds when I had a bad mp3 file.  But this was not a bad file, I replayed the same part without issue.  The file was .mp3 or .ogg.  I have no way of knowing beyond that.

[Llorean]

You'll need to search back through old versions. As I said, we'd need to know the exact version it was introduced with.

[ThaCrip]

just to more confirm AstroBoy's statements... i 100percent agree with him about where he said... "The static was not white noise.  Not even static.  Just random tones and chirps and clicks."

but i guess i might be able to help a little with tracking down the issue but it might take me a while since i dont use my e250 alot but i use it here and there and i aint exactly sure how it can be replicated but it does seem to be related to a long-ish pause and when resuming it does the 'chirps and clicks' stuff... cause the time it happened to me im pretty sure i had mine paused to for a little while... the 2nd time it might have just did it out of no where while playing a song i always played before that i know works fine and he said he just pressed paused and play again to fix his... i never tried that but i just pressed the power button quickly and then resumed the file and it seemed fine again.

but assuming i can help, which version of Rockbox is the first one with USB support? , this way i can start from there and see what happens, but like i say it might take quite a bit of time to track it down.

[AstroBoy]

You'll need to search back through old versions. As I said, we'd need to know the exact version it was introduced with.

Since I have had the failure once in about 6 days, it will take a long time to track this down.  We need to maintain a list of versions that don't fail and do.  We can then do a binary search between them.

I know version r20107-090225 has the bug.  Any idea what version does not?
Also, my failure was while the battery was really low, so I am not sure the problem was not caused by low voltage.

[ThaCrip]

about Astroboy's 'low voltage' comment... i dont think that's the issue cause my battery was pretty much FULL when it happened to me (at least 80+ percent easy left in battery).... i always keep my battery close to full because i was told it's easier on the Lithium Ion type battery's to keep them close to full then charging them (basically a small drain on battery then charge) vs draining them quite low then charging them.

p.s. i just hope whatever happens this bug is not in the v3.2 release because my general opinion of Rockbox is close to perfect (it was pretty much perfect up until this issue recently ) and that could hurt it's rep a little bit... but i guess on a positive side is that it's not a extremely important issue (since Rockbox is still more than usable overall) but it's definitely important if you ask me that it's fixed.

[Llorean]

It's impossible to fix if you guys don't track down where it started, since it needs someone who's actually experiencing the issue to figure it out...

[epithetless]

It's impossible to fix if you guys don't track down where it started, since it needs someone who's actually experiencing the issue to figure it out...

Agreed, but the problem is intermittent enough that reproducing it is a bigger issue than finding the first build where it appeared. As AstroBoy said, this one is going to take a while...

[ThaCrip]

It's impossible to fix if you guys don't track down where it started, since it needs someone who's actually experiencing the issue to figure it out...

can you link me to the first build of Rockbox that supports USB? ... if so ill start there (because i dont know how to access older builds, on the 'current builds' section etc)

also, i assume that the bootloader has ZERO chance to cause issues like this? (just making sure , since im using the new bootloaders so i dont need original firmware at all now. )

p.s. keep in mind i know NOTHING about coding (just basic concepts, like the general idea behind it) ... im just good with general PC related stuff like fixing PC's, moding consoles etc etc.