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Poweramp alpha build-705 - Updates for high-res & notifications within old (feature-complete) user interface

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On 5/19/2018 at 6:47 PM, andrewilley said:

Still not sure what you are reporting - the speaker is not meant to work when you are using Bluetooth or a headset.

Already in the 709 it was fixed .. It did not have audio in the loudspeaker when it reproducia some music .. it only worked well when it used the bluetooth and auricular   

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On 5/13/2018 at 1:28 AM, maxmp said:

It does work on (non Compact) XZ @ 8.0.0 - via OpenSL ES HD. What is your Android version? I will try to get XZ1 variant and will check what's happening there. Thanks for the report.

Build 790 has no device filters, thus it does play hi-res even if device doesn't actually support that. This is not a desired way of playing audio, as there is double sample rate and format conversion: first upsampling e.g. to 192khz/24bit, then downsampling by Android (so-so) resampler back to 48khz/16bit. The upsampling to Hi-Res is not a bad thing, but that following Android downsampling is. (There are additional possible resampling steps in hardware, as usually they are 1-bit DACs running on very high sampling rate).

How about adding an option to adjust the primary output sample rate to the song format instead of upsampling to a fixed rate?

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1 hour ago, sqliuchang said:

How about adding an option to adjust the primary output sample rate to the song format instead of upsampling to a fixed rate?

While technically it's easily possible, it will result in no crossfade, no gapless, clicks between tracks, and some devices still force-resampling to 48khz.

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1 hour ago, maxmp said:

While technically it's easily possible, it will result in no crossfade, no gapless, clicks between tracks, and some devices still force-resampling to 48khz.

So that explains it. Thanks!

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