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The Fiio X5 Thread - Page 646

post #9676 of 19523
Quote:
Originally Posted by CH23 View Post


Okay. Thanks for calling us fanboys, i'll try to be more negative and less objective next time.

people like this can only buy expensive stuff..i think it's still best AK240 for him :) as ipod doesnt support any DSD~

post #9677 of 19523
Quote:
Originally Posted by x RELIC x View Post

@Canaudio I'd agree with Lee730 on this as a possible issue (can't be sure though). I suspect there isn't loads of headroom for the X5's CPU or built in RAM. It may be having a problem reading some codec or the file has a tag that it is stumbling with. If using FLAC on full compression 8 (just as an example) the CPU may be working too hard. When using WAV there is basically no codec to unpack so this is a good test to see if that is the problem. Worth a shot. Also, one time I had a stray .pdf in the folder of one of my albums and that messed up my playback quite a bit. Just some ideas, good luck smily_headphones1.gif
 

Decoding FLAC requires the same processor power irrespective of the level. It is more likely to be tag related as this is an area where the X5 is known to be picky.

I've not used the library functions, preferring to play by folder, but tags are still read and I've not experienced this problem. It would be worth checking the offending files to see if there are any extended tags or unusual characters in the main tags that could be responsible for the issue.

post #9678 of 19523
Quote:
Originally Posted by Canaudio View Post

I'm using 64 GB class 10 cards, so I don't think it's card related.  My latest experiment is to use the X5 coax output to feed the DAC connected to my stereo.  On 192 khz files there is still an occasional stutter episode, though much less than during playback through the analogue headphone out.  Apart from that, the X5 makes a great digital music source.  It sounds very good through my PS Audio DAC.
Don't forget that not all 'class 10' cards are born equally - what brand is it, and how much did it cost?

That is one very annoying thing about UHS-1 - seems to be little to no consistency with regards to read speed frown.gif
post #9679 of 19523
Quote:
Originally Posted by Duncan View Post


Don't forget that not all 'class 10' cards are born equally - what brand is it, and how much did it cost?

That is one very annoying thing about UHS-1 - seems to be little to no consistency with regards to read speed frown.gif


It will also be worth running a disk check to repair any file system errors as this can seriously affect the read speed.

post #9680 of 19523
Note: When buying DSD music, get .DSF files, not .DFF. The latter do not support tagging at all, in any player, and the X5 won't play them.

UPDATE: See my post, below.

Even WAV files have to be tagged for the X5. All of mine are tagged, as I rip to FLAC with EAC, then convert to WAV with dbPoweramp - which preserves EAC's tags.

The morning after box opening, I'm still enjoying .DSF and WAV files, without issues, from my library of Class 10, SanDisk 64GB FAT32 cards. :-)

I was expecting all manner of madness, but so far, all is well!

Mike
Edited by zilch0md - 5/24/14 at 8:48am
post #9681 of 19523
Quote:
Originally Posted by uzi2 View Post

Decoding FLAC requires the same processor power irrespective of the level. It is more likely to be tag related as this is an area where the X5 is known to be picky.
I've not used the library functions, preferring to play by folder, but tags are still read and I've not experienced this problem. It would be worth checking the offending files to see if there are any extended tags or unusual characters in the main tags that could be responsible for the issue.

Perhaps the same processor power, but maybe the decoder can't handle it. I've heard of problems with maximum compression in FLAC before (loooong time ago). If it's a non-issue then, ok. Just spitballing here trying to eliminate the cause.

Edit: I'm not implying the X5 can't handle maximum FLAC compression, just trying to get a baseline for the files used that are skipping. We won't know if we don't ask.


Never mind. Losing my marbles. Sorry.
Edited by x RELIC x - 5/24/14 at 4:51am
post #9682 of 19523
Quote:
Originally Posted by uzi2 View Post


It will also be worth running a disk check to repair any file system errors as this can seriously affect the read speed.

Hopefully the card was formatted with the X5.
post #9683 of 19523
Quote:
Originally Posted by x RELIC x View Post


Perhaps the same processor power, but maybe the decoder can't handle it. I've heard of problems with maximum compression in FLAC before. If it's a non-issue then, ok. Just spitballing here trying to eliminate the cause.

Edit: I'm not implying the X5 can't handle maximum FLAC compression, just trying to get a baseline for the files used that are skipping. We won't know if we don't ask.

I strongly suspect the issue is tag or card related, otherwise we would all be suffering these problems. My FLAC files are all level 8 and do not stutter.

Originally Posted by x RELIC x View Post


Hopefully the card was formatted with the X5.

Even if it was, it can still develop file system errors, with the most common cause being removal of the card during read/write.

 

I don't want to come across as a fanboy, but we must eliminate these external factors, before speculating on any limitations of the X5 to handle the files. The only problem I see with large files is DSD which plays fine, but slows the GUI down to a crawl. There's no decompression involved here as DST is not supported, but it is being converted to PCM on the fly.

 

Quote:
Originally Posted by zilch0md View Post

Note: When buying DSD music, get .DSF files, not .DFF. The latter do not support tagging at all, in any player, and the X5 won't play them.

 


The X5 will play .dff files as long as they are DSD 64 and uncompressed, but they do have very limited tagging options.


Edited by uzi2 - 5/24/14 at 4:51am
post #9684 of 19523
Quote:
Originally Posted by uzi2 View Post

I strongly suspect the issue is tag or card related, otherwise we would all be suffering these problems. My FLAC files are all level 8 and do not stutter.
Even if it was, it can still develop file system errors, with the most common cause being removal of the card during read/write.

I don't want to come across as a fanboy, but we must eliminate these external factors, before speculating on any limitations of the X5 to handle the files.

Agreed and I was in a bit of a fog when writing the previous post. confused_face.gifblink.gif Apologies. We're on the same page.
post #9685 of 19523
Quote:
Originally Posted by uzi2 View Post
 

[snip]

 

The X5 will play .dff files as long as they are DSD 64 and uncompressed, but they do have very limited tagging options.

 

Thanks for the correction - I'll fix my previous post...

 

Mike

post #9686 of 19523
Quote:
Originally Posted by uzi2 View Post
 

Decoding FLAC requires the same processor power irrespective of the level. It is more likely to be tag related as this is an area where the X5 is known to be picky.

I've not used the library functions, preferring to play by folder, but tags are still read and I've not experienced this problem. It would be worth checking the offending files to see if there are any extended tags or unusual characters in the main tags that could be responsible for the issue.

 

I'm not sure about this uzi2. On the Studio V and Rocoo BA on highly compressed FLAC files the units would exhibit clipping on certain tracks. More so tracks that were extremely busy. That issue was solved by changing the compression levels. Also take into account APE is a prime example of high compression and it puts a lot of strain on DAPs. That comes from having to process/unpack the file. That leads to faster battery drain.


Edited by lee730 - 5/24/14 at 10:10am
post #9687 of 19523

I have considered many of the useful suggestions re the stuttering problem.  the files in question are all 192 khz or 96 khz file purchased form HD Tracks.  I have removed all album art from the folders, tried playing with a 5 V DC source connected, checked the SD cards and run a disk test - clean, no errors.  I am still encountering this problem on a more or less random basis several tracks will play fine, then I will get an episode that lasts for several seconds.  Switch albums and the problem recurs after a few minutes and then will play without any issues for an entire track. An interesting factor is that this is a new problem; I did not have this issue with these files when I first received my X5 - It appears to have appeared/gotten worse over time, so perhaps it really is a hardware component failure of some kind?  It's just odd that it would only affect playback of these high res files.

post #9688 of 19523
So way is it that you have not requested a replacement and sent it back? You could have solved the problem by now!
post #9689 of 19523
Quote:
Originally Posted by lee730 View Post
 

 

I'm not sure about this uzi2. On the Studio V and Rocoo BA on highly compressed FLAC files the units would exhibit clipping on certain tracks. More so tracks that were extremely busy. That issue was solved by changing the compression levels. Also take into account APE is a prime example of high compression and it puts a lot of strain on DAPs. That comes from having to process/unpack the file. That leads to faster battery drain.


APE and FLAC are very different in this regard. FLAC has been designed to very light on the CPU for decoding, the levels only require more for the encoding. Whatever level you choose the encoding is lossless, so WAV->FLAC->WAV = original WAV in all regards. If there was no clipping in the original, then there will be no clipping in the result. Clipping can only be introduced in the conversion process by an external factor that is increasing the gain. Early versions of DVDAudio Extractor used to introduce clipping when ripping multichannel to FLAC, so must have been attempting some sort of Replay Gain in the process. I can only guess that this was the problem also in the players you mentioned. I can confirm that no such issues exist with the X5. It plays level 8 FLAC files just fine.

Quote:
Originally Posted by Canaudio View Post
 

I have considered many of the useful suggestions re the stuttering problem.  the files in question are all 192 khz or 96 khz file purchased form HD Tracks.  I have removed all album art from the folders, tried playing with a 5 V DC source connected, checked the SD cards and run a disk test - clean, no errors.  I am still encountering this problem on a more or less random basis several tracks will play fine, then I will get an episode that lasts for several seconds.  Switch albums and the problem recurs after a few minutes and then will play without any issues for an entire track. An interesting factor is that this is a new problem; I did not have this issue with these files when I first received my X5 - It appears to have appeared/gotten worse over time, so perhaps it really is a hardware component failure of some kind?  It's just odd that it would only affect playback of these high res files.


I believe at some point you were asked what brand of SD cards you were using, but I can only see that you said they were 64GB class 10. It is important to use only good quality branded cards.


Edited by uzi2 - 5/24/14 at 11:20am
post #9690 of 19523
Quote:
Originally Posted by uzi2 View Post
 


APE and FLAC are very different in this regard. FLAC has been designed to very light on the CPU for decoding, the levels only require more for the encoding. Whatever level you choose the encoding is lossless, so WAV->FLAC->WAV = original WAV in all regards. If there was no clipping in the original, then there will be no clipping in the result. Clipping can only be introduced in the conversion process by an external factor that is increasing the gain. Early versions of DVDAudio Extractor used to introduce clipping when ripping multichannel to FLAC, so must have been attempting some sort of Replay Gain in the process. I can only guess that this was the problem also in the players you mentioned. I can confirm that no such issues exist with the X5. It plays level 8 FLAC files just fine.

 

Well apparently that is not the case on the players that I mentioned. I mentioned them as they are an exception to your statement. The original files do not have clipping. It was with the higher compression where this resulted. Not that this would cause an issue for the X5.


Edited by lee730 - 5/24/14 at 11:35am
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