Why is there no option to upsample the audio in the built in Music player?

Why is there no option to upsample the audio in the built in Music player? We should be able to change the 2 x or multichannel PCM audio from 16 bit -> 24 bit and the same with frequency from 44.1 / 48 kHz to 96 or 192 kHz? This par for the course for most Sony SACD Blu-ray's and most audio playback systems.

 

The recording stays the same. Why would you pretend an other recording?
Maybe filtering changes at different sample rates. But 16 bit is still 16 bit even if you convert it to 24 bits. It only adds a lot of zeros.

 

That would be mathematically incorrect. All values need to be properly scaled, not padded with zeros.

 

Correct me if I'm wrong but......
Sound pressure at 16bit is the same as at 24 bits. Which implies the padding is on the right side.
Scaling/ multiplying in binary is the same as shifting to the left. So it results in extra insignificant zeros.

 

You can't pad with zeros, you won't get the full range.

An example, assuming signed integer samples:

• max positive int value in 16 bits = 0x7FFF
• shifted and padded with zeros = 0x7FFF00 (which is not the max positive int value in 24 bits).

In other words, simple padding operation just lost the low 8 bits. The correct result should have been 0x7FFFFF, which is the max positive signed int in 24 bits.

Linear data, (LPCM) is relatively straight forward. Things get more complicated in log spaces or any other spaces that use a no-linear transfer curve. That's more common in image processing, but not unheard of in some audio formats.

 

Simple question people; not looking for opinion the DMP-A6 has the Eversolo Audio Engine for bit change and frequency upsampling. How do I open a ticket the Zidoo to have the same parity feature on the Zidoo 8k platform Music application?

 

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