[hanskey]

Well, I've been using PowerAmp and UAPP, and in their default configurations they both seem to draw very little power.

I think the power draw of the actual headphones/headphone jack and DAC/Amp circuits is much higher than either app and they are both very, very low power draw apps according to my battery report from my LG V60. It would be amazing if only the Apps drew power, because then I'd get like 200-300 hours of playtime, but since that's literally impossible, it's more like 40-80 hours of playtime from 100%-0%, thus crushing the battery life of all actually available DAPs on the market.

Both seem to be excellent and transparent overall, to my ears.

UAPP is slightly more prone to crashing and takes longer to update the library, and PowerAmp has a slightly better UI.

Sound-wise, as I mentioned above, they are both transparent with UAPP being very slightly louder at the same system volume, for some reason. To volume match I have to turn up PowerAmp by 2.

 

[nhockon]

Why UAPP just display "16 bit", Quad DAC works?

(LG v40, Android 8.1)

In Neutron, it upscale to 32 bit.

 

[superuser1]

Why UAPP just display "16 bit", Quad DAC works?

(LG v40, Android 8.1)

In Neutron, it upscale to 32 bit.

Did you try this

 

[hanskey]

Why would anyone want UAPP or anything else to upscale? It does not improve 16 bit sound to upscale to 24 or 32.

In fact, it can sound worse and can introduce distortion and noise (if badly implemented, if well implemented it's still just source-transparent with no audible issues) not to mention upscaling takes more power because of higher processing power needs.

 

[nhockon]

Did you try this

Why would anyone want UAPP or anything else to upscale? It does not improve 16 bit sound to upscale to 24 or 32. In fact, it can sound worse and introduce distortion and noise, not to mention upscaling takes more power because of higher processing power needs.

I use LG quad dac phone. There is something about 16/44.1 resample to 16/48. Therefore, if you want to play at original 44.1 sample rate:

- Poweramp need force 24 bit
- Neutron auto "upscale" to 32 bit, and display 32 bit, 44.1Khz when i play 16/44.1 song.
- UAPP, i dont know.

Only for LG quad dac phone.

 

[hanskey]

I use LG quad dac phone. There is something about 16/44.1 resample to 16/48. Therefore, if you want to play at original 44.1 sample rate:

- Poweramp need force 24 bit
- Neutron auto "upscale" to 32 bit, and display 32 bit, 44.1Khz when i play 16/44.1 song.
- UAPP, i dont know.

Only for LG quad dac phone.

I understand now. With UAPP, you don't need to upscale the bits to avoid frequency resampling. UAPP bypasses Android audio resampling regardless of your source bits/frequency as long as your DAC supports that format. The LG quad DAC supports native 16/44.1 KHz format, so UAPP will just send that directly.

That's why UAPP, in your screenshot shows "Direct 16/44.1."

Some people like to make double sure and enable "bit perfect" mode, but that's not really necessary to avoid added *theoretically audible* distortion from resampling by UAPP.

Have a good one!

 

[nhockon]

I understand. Thank you for helping out so much, @hanskey .

I love UAPP more than Neutron, because this feature : "More albums by singer ABC"

 

[hanskey]

I understand. Thank you for helping out so much, @hanskey .

I love UAPP more than Neutron, because this feature : "More albums by singer ABC"

Hell yeah!

I was thinking it was kinda power-hungry, but I objectively measured it using my phone's battery reporting and it's not. It's a great app!

I think the included EQ is good too - no audible distortions, but I only slightly bump the bass on my more bass-lean "neutral" headphones, for low-volume listening.