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The iBasso DX50 Thread - Latest firmware: 1.5.0 - Page 685

post #10261 of 15239
wow dsd support for dx50?
though it is a great news for current user,
but please just fix the clicking problem of hi rez (24/192) music first!
post #10262 of 15239
Quote:
Originally Posted by tin427 View Post

wow dsd support for dx50?
though it is a great news for current user,
but please just fix the clicking problem of hi rez (24/192) music first!

If they could,did u send them a file for identifying the root cause?
post #10263 of 15239
Quote:
Originally Posted by CosmicHolyGhost View Post


If they could,did u send them a file for identifying the root cause?

 

 

All my 192khz FLAC files clicked, downloaded from HD Tracks, Linn Records, 2L etc...

Ibasso could easily download a 24bit/192 khz FLAC file from any of these websites and test it 

post #10264 of 15239
Quote:
Originally Posted by roamling View Post
 

 

 

All my 192khz FLAC files clicked, downloaded from HD Tracks, Linn Records, 2L etc...

Ibasso could easily download a 24bit/192 khz FLAC file from any of these websites and test it 

I think those clicking is kind of decoding problem.

If dsd support is out and perfectly implemented, I think a 'less hi-rez' format like the flac decoding will be fixed.

post #10265 of 15239

Just picked up a 2 pack of these : http://goo.gl/xgPqv1 (link is to the single pack only).

 

So I have some spare batteries for OTG, and various chargers dotted around the place (work, home, car), including one of these:

 

http://goo.gl/FWlK5v

 

So, I think I'm all fit and ready to go.

 

EDIT: shortened huge ugly links


Edited by Carlosfandango - 1/16/14 at 4:09am
post #10266 of 15239
Quote:
Originally Posted by tin427 View Post
 

I think those clicking is kind of decoding problem.

If dsd support is out and perfectly implemented, I think a 'less hi-rez' format like the flac decoding will be fixed.

I think DSD is around the 96khz PCM range when it comes to comparing the bit rate density, so maybe DSD is still easier to decode than an 192khz PCM file. But I have no clue if that is comparable when it comes to processing power.

 

192khz WAV was working fine on the DX50. FLAC and AIFF were not. 

post #10267 of 15239
Quote:
Originally Posted by Trebor1966 View Post
 

...soon we will get DSD support...

 


 

ibasso schrieb:
HI,
The DSD will be supported with the upcoming firmware.
We will release it in a couple weeks.

Sincerely
iBasso Audio

 

Any news about USB DAC function?

post #10268 of 15239

From Cooperpwc:

 

"Oh dear. I have an issue with my DX50. It is partly my own stupid fault but I am still not delighted.

 

It seems that my DX50 has no safety shutoff circuit for battery depletion. I installed a new genuine Galaxy S3 battery a couple of weeks ago and was able to get it up to a full charge using a 1.3 amp Nokia charger. Then on the road this week, I had simply fantastic battery life from my new battery."

 

I found my DX50 battery had run down yesterday, and would not stay on for more than a moment or so before shutting down. Perhaps I had inadvertently left the unit on. However, after a few hours charge, connected to my computer, it charged fully. Just checked the DX50 after it had been off overnight, and it is still fully charged. Why not try a wall charger and see if you can get the unit back to fully charged?


Edited by Aurion - 1/16/14 at 5:33am
post #10269 of 15239

Thanks, Aurion. I am using a wall charger for the DX50. I do not have separate battery charger for a Galaxy S3 battery.

 

I switched back to the original DX50 battery which still carries a charge; there was still one bar on the battery meter. I am charging that now. At least it should get me listening again until I get a new battery.

post #10270 of 15239
Quote:
Originally Posted by roamling View Post

I think DSD is around the 96khz PCM range when it comes to comparing the bit rate density, so maybe DSD is still easier to decode than an 192khz PCM file. But I have no clue if that is comparable when it comes to processing power.

192khz WAV was working fine on the DX50. FLAC and AIFF were not. 

Prior to FW 1.2.5 I was having the clicking on 192kz ALAC but only when playing from the SD card. Putting on internal memory, it worked. With 1.2.5 192khz ALAC works from the SD card. I only have one album at this rate but it seems to be working now with ALAC. I can't tell a SQ difference between 96khz so I don't plan on adding any more.
Scott
post #10271 of 15239
Quote:
Originally Posted by cooperpwc View Post
 

Thanks, Aurion. I am using a wall charger for the DX50. I do not have separate battery charger for a Galaxy S3 battery.

 

I switched back to the original DX50 battery which still carries a charge; there was still one bar on the battery meter. I am charging that now. At least it should get me listening again until I get a new battery.


Where did you see the lithium battery discharge warning? This warning is new to me. Hadn't known that complete discharge wrecks the battery. There must be safety circuits to prevent this in all iPads.

post #10272 of 15239
Quote:
Originally Posted by Aurion View Post
 


Where did you see the lithium battery discharge warning? This warning is new to me. Hadn't known that complete discharge wrecks the battery. There must be safety circuits to prevent this in all iPads.

 

I linked it in my post:

Quote:
 I decided to run the battery down which can be useful to do once on a new battery. However as noted on the Internet (so it must be true..)

 

Here it is direct:  http://www.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/#.

post #10273 of 15239
Quote:
Originally Posted by cooperpwc View Post

However as noted on the Internet (so it must be true..)

Well... sort of.

Small Li-based batteries have a maximum charge cycle life of about 400 cycles. Li batteries suffer progressively worse chemical degradation when discharged past about 50% of capacity. Routinely discharging them to nil will rapidly reduce their charge capacity and overall life by half or more. This is the real reason why you shouldn't deep discharge Li batteries. Lower quality batteries, like the ones iBasso ships, can have shorter lives and lower nominal capacities and more rapid degradation. It doesn't surprise me that the stock battery would go from the rated 10+ hours to just 4 hours over three or four months of heavy use.

Unlike NiCD and NiMH batteries which can be monitored by temperature, Li-based batteries require a "smart" charge circuit to prevent overcharging and rupturing. When the charge monitor circuit fails or faults then the battery can discharge or self-discharge to nil while the circuit says it has a full charge. The result is that the circuit prevents the battery from being charged. Early Li-P and Li-Ion battery packs are notoriously susceptible to this phenomenon. Anything more recent than, say, 2003 should be more reliable as the circuits were altered to prevent this kind of self-discharge fault. Still, faults happen. Unfortunately, it's usually impossible for consumers to fix or reset a Li battery once it gets into this state. A dedicated charger might be able to get it working again but that depends on the battery and the charger; it's not a universal thing.
post #10274 of 15239
Quote:
Originally Posted by cooperpwc View Post

Then you lose me again by failing to acknowledge that someone might buy the Mercedes also because it drives better and is more pleasurable to drive. You are on your way in your reasoning but you keep missing the conclusion.

There's nothing wrong with wanting more/better per se. What I hate is the pressure in this forum to buy outboard amplifiers when they're not needed and are of no actual benefit. Case in point: my deconstruction of LinkyG's perceived SQ improvements between v1.2.6 and v1.2.7 by adding an amplifier. To follow your Mercedes vs. Honda analogy, it's like you insisting that I really should get an S-Class because it's so much better than the Fit (Jazz to you folks outside North America). Better in some ways perhaps, but an S-Class costs $80K-$120K more to buy, is commensurately more expensive to insure and maintain, guzzles more than twice as much fuel per mile, and isn't nearly as much fun to drive as my Fit.
post #10275 of 15239
Quote:
Originally Posted by ratinox View Post


Well... sort of.

Small Li-based batteries have a maximum charge cycle life of about 400 cycles. Li batteries suffer progressively worse chemical degradation when discharged past about 50% of capacity. Routinely discharging them to nil will rapidly reduce their charge capacity and overall life by half or more. This is the real reason why you shouldn't deep discharge Li batteries. Lower quality batteries, like the ones iBasso ships, can have shorter lives and lower nominal capacities and more rapid degradation. It doesn't surprise me that the stock battery would go from the rated 10+ hours to just 4 hours over three or four months of heavy use.

Unlike NiCD and NiMH batteries which can be monitored by temperature, Li-based batteries require a "smart" charge circuit to prevent overcharging and rupturing. When the charge monitor circuit fails or faults then the battery can discharge or self-discharge to nil while the circuit says it has a full charge. The result is that the circuit prevents the battery from being charged. Early Li-P and Li-Ion battery packs are notoriously susceptible to this phenomenon. Anything more recent than, say, 2003 should be more reliable as the circuits were altered to prevent this kind of self-discharge fault. Still, faults happen. Unfortunately, it's usually impossible for consumers to fix or reset a Li battery once it gets into this state. A dedicated charger might be able to get it working again but that depends on the battery and the charger; it's not a universal thing.


All good information, but.....I'm not going to worry about it. I have lithium batteries all over the house, and the only one I can recall having a problem with is from my Logitech remote. It had been sitting on a charger when not in use for at least 2-3 years. The battery was so badly swollen that it could not be removed. Logitech replaced it at no cost. My original iPad, first model, is still going strong. And the DX50 batteries are so inexpensive and available everywhere that it is of little concern, to me. Your information is interesting nevertheless.

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