MinimServer2 : Best audio transcoder/resampler and transcode options

[adhara]

Hi,

I'm new in MinimServer customers :-)
I finished to install MinimServer2/MinimStreamer on my Synology NAS (1618+ / intel cpu), MinimWatch on my Windows PC.
I use BubleUpnP or Lumin client from my Android smartphone. Audio files (mostly flac 16bits or 24 bits) are stored on my NAS, I also use Qobuz Premium.
My receiver is Chromecast plugged into WISA Hub receiver (Axiim Q unit).

At the moment, I only tested ffmpeg trancoder with Sox.
I'm looking for the best audio quality possible for my audio system.
The best I can deal with is 24 bits/ 96 Khz

What do you think about settings below ? Is there something else I can do (modification) for sound improvement ?

stream.options : convOut=-af aresample=resampler=soxr:precision=33:cheby=1:dither_method=triangular

stream.transcode: flac(16;44):wav24;88, flac(24;44):wav24;88, flac(24;48):wav24;96, flac(24;88):wav24;88, flac(24;96):wav24;96, flac(24;176):wav24;88, flac(24;192):wav24;96, mp3:wav24, dsf:wav24;96, wav:wav24;96, mp4:wav24;96

Maybe there is another transcoder/resampler, more efficiency and offer a better sound quality than ffmpeg/sox ?

Thanks