Hi Guys,
I'm having an extremely frustrating time with my audio since inserting (what I thought would be a better) SD Card.
I get intermittent audio stutter on the new SD Card with screen on or off. Mostly when off though. Frequency seems to increase when notifications come through, though, don't occur exactly or exclusively on notification arrivals.
My Phone setup: As per Signature below
Old Card: Kingston SDHC Class 4 32GB (Formatted FAT32)
New Card: Strontium NITRO 566X SDXC UHS-1 64GB (Fotmatted exFAT)
I have attempted the following to try identify the cause:
1) Tried different Player (Sony's "Music" instead of Poweramp): Stutters on both
2) Complete clean install: Issue remained on new card
3) Reformat New Card to exFAT again: Issue remains
4) Xposed Active: Old Card works, new card stutters
5) Xposed Inactive: Old card works, new card stutters
The only conclusions I can draw are that the exFAT file system is the issue or the card is faulty.
I managed to capture a stutter in log cat. These two lines are interesting:
06-23 19:45:59.983 I/AudioFlinger(833): BUFFER TIMEOUT: remove(4097) from active list on thread 0xb4343000
06-23 19:46:00.245 W/AudioTrack(2465): releaseBuffer() track 0x9cbe6000 disabled due to previous underrun, restarting
I've attached a more complete log file. You'll see this error occur several times in short succession. Hopefully someone can see something I can't.
I'm at wits' end! Help would be deeply appreciated.
No such issue here, I have a 64GB Sandisk Extreme U3. I think it maybe the card., only way to find out is to test it in another phone/tablet.
I assume intermittent slow reads / simultaneous accesses of card or CPU time allocation can cause buffer under runs, as in something/app utilizing too much CPU time while your Music is playing. I suspect the former, its the MicroSD card's intermittent slow reads or other apps accessing it at same time. It is a low end card so I assume that much.
I generally prefer Sandisk Extreme or Pro / Lexar (Micron/Crucial) / Samsung Pro / Kingston (Collaboration with Toshiba) as they make their own NAND Flash and are pretty reliable.
abhinav.tella said:
No such issue here, I have a 64GB Sandisk Extreme U3. I think it maybe the card., only way to find out is to test it in another phone/tablet.
I assume intermittent slow reads / simultaneous accesses of card or CPU time allocation can cause buffer under runs, as in something/app utilizing too much CPU time while your Music is playing. I suspect the former, its the MicroSD card's intermittent slow reads or other apps accessing it at same time. It is a low end card so I assume that much.
I generally prefer Sandisk Extreme or Pro / Lexar (Micron/Crucial) / Samsung Pro / Kingston (Collaboration with Toshiba) as they make their own NAND Flash and are pretty reliable.
Click to expand...
Click to collapse
Thanks for your feedback. What file system is your SD Card formatted to? exFAT I presume?
I am starting to think the card is the issue. Just want to be certain before I return it. Perhaps there is a trend or another cause.
Also, not sure I agree on your statement regarding Strontium being "low end". How did you come to this conclusion?
I assumed the model being somewhat equivlent to the SanDisk Ultra / Samsung Evo low end units due to the pricing and speed tests online.
It should still be good enough for music even if it's much slower but I assume multiple simultaneous acceses by other apps or inconsistent read speeds are causing your issue.Worst case the card is dud and you need a replacement. So just try it on another device to confirm of the card is the issue.
High end is usually the SanDisk Extreme/Pro or Samsung Pro or Lexar 633x (you can actually get them cheap on occasional sales on Amazon) but it shouldn't matter much for music though unless you are using like HD Audio or something.... Makes a big difference in video recording however.
Seems the SD card I bought was defective. I replaced the card with a SanDisk Ultra 64GB. Stutters have disappeared...
Related
Is anyone else having issues with their sd card corrupting? I have an 8gb class 6 transcend card and it has corrupted 3 times in the last month. I always unmount the card in windows before unplugging the phone. It seems to do it when I'm writing to the sd card from the phone.
The first time I noticed it was when I deleted a picture with built in photos app.
The next time was today when I made a nandroid backup before applying an update (theme). The nandroid backup finished and when I went to apply the update it came up with an error (I didn't reboot between the backup and applying the update). I reset the phone and the sd card was unavailable.
At one point I did have the card partitioned with the apps on one partition. When it corrupted I reflashed the phone back to 1.42 and left the apps on the phone. I went back to one partition and left it at that (fat32).
I don't know if I just have a bad card or something else is going on. I never had any problems with 1.41. However because it did it while doing a nandroid backup would that rule out the software version?
I would like to find a solution, as I don't trust the card anymore without backing it up frequently.
i've had it happen once (files names corrupted) but assumed it was down to the card as i had the same happen when it was in my N95, i've now bought a new card and i'll see how it goes.
When mine goes down, it seems like it kills the partition. When I open a disk manager I don't see a partition on the card anymore.
Hey axion,
Yea your card is pretty much dead... this also happened to me yesterday on my 4 gig card... yyour card will still work however reformatting or creating anymore partitions won't help bring it back.. for future update.zips or recovery boots upload your update files to your stock 1 gig card.. remember to always safely remove hardware with any card mounted to the to a computer..
YES - and not only have I had the same problems, it's with the same brand card! Transcend 4 GB Class 6.
My phone started having issues where I installed an application and it would act wonky, then if I tried to reboot it'd lock up into an infinite loop.
The last couple of times, I solved the loop by doing a fsck on the partition in GParted (booted into a GParted Live instance from a laptop using a USB stick). The problem reoccurs though, making me think there's something problematic with the card.
There's an app in the thread on the cheap 8 GB cards (of which I'm holding my recently received shipment . There's an app in that thread used to test write performance, but it does some crude error checking, and I had an issue when I did that test.
I'm going to do a partition clone and report back.
my dodgy card was 4GB Kingston, one interesting problem i had with it was video refused to play, i could read and write the file fine but android would refuse to play it and meridian video player would report the wrong pixel size, time and codec which had me confused all last weekend.
I'm also frequently having problems with my 8gb card (http://www.newegg.com/Product/Product.aspx?Item=N82E16820211341). Every few days I find myself firing up Ubuntu to fsck it and I always find errors. I often discover them when looking for a file on the phone (I usually do a find / | grep whatever and notice that I get "stale file handle" errors).
Should I get a newer/better card? I'm happy to pay more for a better one. I didn't know this brand, but it was the only class 6 I could find. If Sandisk made a faster card I'd get that, but I can only find a class 2. I have a 16gb Sandisk but it is only class 2 and therefore not good for apps, which is what I'm using the sdcard for.
If anyone can recommend a better one, I'll give it a try.
Does a 16gb class 8 exist yet? What about a 16gb class 6?
I just moved to the same card you have, mlevin - so I'll post back my experiences if I'm seeing anything.
I'm wondering if maybe moving the caches to SD isn't the greatest idea, since these devices aren't meant for continuous writes. If I have more issues, I might just move the caches back to the onboard memory.
giantcrazy said:
I just moved to the same card you have, mlevin - so I'll post back my experiences if I'm seeing anything.
I'm wondering if maybe moving the caches to SD isn't the greatest idea, since these devices aren't meant for continuous writes. If I have more issues, I might just move the caches back to the onboard memory.
Click to expand...
Click to collapse
Yeah, that worried me as well, so I moved my caches back to the main storage and only have app, app-private and data symlinked to the card.
If you are having problems after moving apps and data to your ext2 partition, you have to push the original init.rc and mountd.conf back onto the phone so you can wipe to card fully and restore it to the FAT32 file system.
I had a similar problem on my tmobile wing (variant of the Atlas which is a modified version of the Herald) running Windows Mobile 6 and Windows Mobile 6.1. I think it was also when I used the SD card as a place to store cache for PocketIE. Maybe that's the issue, using it as cache storage. (This is my theory, not something that has been confirmed.)
g1 sd card deletes itself
I am on my 4th sd card. I am not sure what is corrupting/deleting my data. I can copy over some music/video/pdfs/wtfevers and it'll stick around for awhile. Then BAM, music folder empty(had 1 gig of music in it). BAM, 1 of 3 video files corrupted. OH wait, now all 3 are gone. awesome. I keep a backup on my pc so I can copy it all back over once it goes south. I have the doodledroid drawing app on my phone and the folder will go corrupt - not allowing me to save an image until I delete the folder so it can reinitialize(create a non-f'ed up folder). Also, my picture thumbnails get f'ed so I have to delete that folder so the G1 can remake a new non-corrupted set. My PDFs disappeared about 3 days ago. Cards all formatted fat32. blah.
Frustrating.
I have root
kila-user 1.1 PLAT-RC33
Anyone else find a solution?
BTW, my sd cards were:
sandisk 2gb
sandisk 2gb
PNY 4gb (current)
Lexar 4gb
mlevin said:
I'm also frequently having problems with my 8gb card (http://www.newegg.com/Product/Product.aspx?Item=N82E16820211341). Every few days I find myself firing up Ubuntu to fsck it and I always find errors. I often discover them when looking for a file on the phone (I usually do a find / | grep whatever and notice that I get "stale file handle" errors).
Should I get a newer/better card? I'm happy to pay more for a better one. I didn't know this brand, but it was the only class 6 I could find. If Sandisk made a faster card I'd get that, but I can only find a class 2. I have a 16gb Sandisk but it is only class 2 and therefore not good for apps, which is what I'm using the sdcard for.
If anyone can recommend a better one, I'll give it a try.
Does a 16gb class 8 exist yet? What about a 16gb class 6?
Click to expand...
Click to collapse
mlevin: I have that card. It's been fine...until I believe the other day. I was running 5.01H w/ apps to sd and my battery had died so I charged it. Upon turning it on the android screen kept looping as though it wasn't mounting the card. Worse came to worse and I had to end up reformatting the card and starting from square 1. Now that I reformatted it, I'm getting "insufficent space" errors when trying to install paid apps even though I did everything right.
I'm wondering if it is the card.....
well i bought a micro sd card patriot SDHC Class 4 thinking this will work for sure because i use a lot of patriot products and they tend to work great. But this time i popped in the card everything seemed normal until i started using the memory card on the phone. The camera would not see the sd card even though it was in there after the first camera shot, and it hangs the whole phone. Whenever the card is in use the whole phone will lag until i eject the card then everything returns to normal speed. I have a 1GB Kingston that i got with the phone and that works fine, could this be a problem with patriot and G1 having compatibility issues because i have already RMAed the card once thinking it was defective.
Also i have tried formatting the card many times running diagnostic with windows and it comes out ok, i can even transfer large files onto without any problems on windows with a card reader.
I have read about this problem with others, so my question is what is a good card to replace patriot with anyone recommend one that is working flawlessly like a brand, or know a fix for this issue.
I think I have the same problem with the same sdcard/model...
When I try to copy a file on my SD from my PC (usb), my phone become slow and unresponsive. The file copy will even fail after a while and linux (my desktop) unmount the SD.
From my desktop PC:
Apr 12 16:43:36 duff kernel: [1029503.471572] Buffer I/O error on device sdf1, logical block 222
Apr 12 16:43:36 duff kernel: [1029503.471573] lost page write due to I/O error on sdf1
Apr 12 16:43:36 duff kernel: [1029503.471615] sd 53:0:0:0: rejecting I/O to offline device
Apr 12 16:43:36 duff kernel: [1029503.471661] sd 53:0:0:0: rejecting I/O to offline device
Click to expand...
Click to collapse
I also have this problem! I got the card replaced 2 times and both of them have this issue! I got a 8gb transcend and i don't have any problems with it at all.
try using a different program to copy.
i used 'GNU Midnight Commander for Windows' as a quick fix and it just copied the large files over where de windows explorer copy failed
i'm sure there are better tools but i was in a hurry to make it a quick fix.
Has anyone noticed slow SD transfer since upgrading to ICS?
The simple copying of files from PC to SD has become unbearably slow. Even after fixing the SD (from the dialog that came up, not sure if it actually did anything) no change.
Taking the SD out and copying direct is very fast.
It wasn't like this on Gingerbread.
My Sensation is stock o/s, not rooted, I use Sense.
Note: I had posted this a few days back on a thread about reboots, no responses so reposting here as it's really a separate topic, hope that doesn't violate rules, etc.
With root, you can increase cache size your SD to 2048kb. You can also buy a faster card. What class you have now?
I had a similar problem. My file transfer was only a little slower on ICS, but it was noticeable. On top of that, my SD card would unmount without warning during larger transfers. This was on a Lexar 32 GB Class 10.
I ended up pulling the card a week ago, backing up the contents to my PC and just reformatting the thing in my PC as FAT32. It came as FAT32 from the factory, but I've read a lot of posts where people fixed their SD errors by reformatting the card in a PC.
So far, no unexpected SD unmounts, and speed might be better. Or it could be my imagination.
Not sure if this will fix your problem, but it's something to try if you have no other leads.
I have a class 10 sans disk. Didn't notice any slow down going to ice really.. Not that I can remember what GB was like sd card was misaligned apparently according to 4ext. I formatted my sd with my PC, hit the default format settings, not quick format then stuck it in my phone.
Thanks for the replies, they don't sound like my situation.
My card was always secure, and the copying is vastly different inside and outside the phone, so I can't fault the card.
Something is buffering between the phone and the card. The difference is night and day.
I can just take out the card and copy direct each time, but that's kinda stupid and inconvenient, there's got to be a better way. And I'd be surprised if it were only affecting my phone.
Hi,
I recently bought my first smartphone: an NGM Endurance running on 4.4.2 (KitKat) with 1GB ram and 8GB storage.
Without an SD card fitted, the Camera App takes, stores, and replays Full HD videos @ 30fps with no problem at all.
When I fitted a Class 10, "SanDisk Extreme PLUS 32 GB microSDHC Memory Card" (from Amazon) the following problem appeared:
Most of the time when I switch the phone on, or wake it from sleep, and then try to take a video I usually get a, "Low Memory, Auto Change Quality" message.
The video is about half its normal size (approx 20MB for 20 secs), is stored on the SD card (but takes 40+ secs to do so!), and plays back OK.
Subsequent videos taken immediately after are about 40MB and no warning message appears (they also take only a second or two to save).
I did a factory reset via the Settings menu and it's made no difference except I don't always get the, "Low Memory..." message now.
The problem isn't entirely consistent because I think that on rare occasions a first 20 sec video has gone OK only for the problem to appear in the next.
I have a PhD in Breaking Things and would welcome any help or advice (rather than my blundering around and poking things with little idea of what I'm doing).
John Latter
I tried another 32GB card with the same results.
I then tried two 2GB cards from voice recorders and they work OK!
A SD card tester app gave read and write speeds for the 2GB cards as approximately 10 Mb/s for both read and write.
I've just run the app on one of the 32GB cards and the read/write speeds are 7.42/1.99 Mb/s (!)
Am totally baffled and haven't a clue in which direction to look for a solution - help, please!
John Latter
John Latter said:
I tried another 32GB card with the same results.
I then tried two 2GB cards from voice recorders and they work OK!
A SD card tester app gave read and write speeds for the 2GB cards as approximately 10 Mb/s for both read and write.
I've just run the app on one of the 32GB cards and the read/write speeds are 7.42/1.99 Mb/s (!)
Am totally baffled and haven't a clue in which direction to look for a solution - help, please!
John Latter
Click to expand...
Click to collapse
Your device may not be recognizing the new SD cards and saving the images to the internal storage (this phone has very little internal storage) I would make sure to back up anything on the SD card and reformat it via pc.
shel692 said:
Your device may not be recognizing the new SD cards and saving the images to the internal storage (this phone has very little internal storage) I would make sure to back up anything on the SD card and reformat it via pc.
Click to expand...
Click to collapse
Thank you for your reply, shel692
The phone appears to recognize all the sd cards I've tried because:
a) There are no error messages
and
b) Once installed, all photos and videos are saved to the sd card instead of phone memory
Unfortunately, my camera app doesn't allow me to choose where the photos/videos are stored else I'ld save them to phone and transfer over if necessary.
Although a relatively unknown model, quite a number of NGM Endurance's have been sold in the UK (and throughout Europe - the manufacturer is Italian) but no-one else has reported this problem (yet!)
John Latter
Hi, I've searched and seen many posts on slow sd's, and separately many posts on sd corrupting pics and vids, and I seem to be observing both.
The sd card is a 95mbps Samsung (uhs-1 class 10 u3) , phone is an lg g6. Phone is fine (non rooted), and all apps were working fine. Then when I started pointing apps to the SD, I noticed transfers were extremely slow (I'm only getting between 4-10mbps up and down), and in some cases things were breaking like vids, pics, and off Spotify not loading, line map downloads failing.
Ithink what is happening is the os or the SD formatting with a low buffer, is causing the low speeds, and then the apps can't handle the slowness somehow. Like if I take 10 photos quickly and video, the buffer to storage is so slow that it thinks they've failed or something.
Anyways, would appreciate any help because I feel like I've just wasted 40 dollars on an SD card.
On a side note looked wide and far to find out the G6 sd specs, to no avail other than a forum poster saying their device took the uhs-1 class 10 ok.