Fiio M3k

[Julian67]

I there any possibility that Rockbox core could ever support 24/32-bit audio?

Possibility?  Of course.  But it's not terribly likely at the moment; only a handful of the players have hardware that supports it, and need to implement in a way that doesn't bloat things for 16-bit-only players, and there's not exactly a lot of folks contributing code.  Or contributing much of anything, really.

I'm just asking because I have no idea:  Would a change from 16-bit to 24 or 32-bit be a huge upheaval?  Would it be impossible to do without dropping support for 16-bit players? Technical query, not a feature request!

[cereal_killer]

I've got few measurements for digital filters and DAC power mode illustrations.
Test signal is local file generated in REW software. 4kHz square signal, 192k sample rate, PCM24.

I am curious what the interpretation of these graphs is.

[speachy]

I'm just asking because I have no idea:  Would a change from 16-bit to 24 or 32-bit be a huge upheaval?  Would it be impossible to do without dropping support for 16-bit players? Technical query, not a feature request!

At minimum, we'd need to make the audio path variable-width at compile time, so 16-bit only devices don't incur any performance penalty.

A basic question is if we want to unconditionally use 24/32-bit audio on platform that support it, or switch back and forth at runtime.  Switching makes everything a lot more complicated, with multiple code paths and new APIs.

Meanwhile. Our DSP/EQ/effect engine doesn't support >16bit.  Additionally, we'd have to implement 16-24bit conversion for the various codecs/plugins that don't support >16bit audio (that said some of our targets only support 24/32-bit audio so that's already implemented, just not in a generic manner)

[Julian67]

I'm just asking because I have no idea:  Would a change from 16-bit to 24 or 32-bit be a huge upheaval?  Would it be impossible to do without dropping support for 16-bit players? Technical query, not a feature request!

At minimum....

Thank you for a really comprehensive answer.  Appreciated.

[mario69]

good morning, I have a problem, my fiio m3k player after two years of excellent functioning with rockbox, I get a message like this:panic -updating size on empty dir entry 4 (and also others Number) Simeone have a solution?thanks