Upsampling Background

[michaelagiles]

As purists would say - upsampling should never sound better..
However two months ago I got AK4493 I2S DAC /Rpi3B+/ and I've been playing with SOX resampling since.

Final result - now I upsample eveything to 32 bit, 384 kHz, Stereo (SoX medium quality)

Not the purists way, not the audiophile way - but I am just sure that it sounds better, richer and thicker to my ears. I am also sure that there are 'artefacts' but what I hear is more positive as whole experience than negative.

Cheers to SOX and Moode audio!   

I agree. RPi3B+ and Allo Boss (TI PCM5122). Upsample everything with SoX to 32/384 highest quality setting. Even lossy 320kbps internet radio sounds ridiculously good. I was stuck on integer only resampling 16/44.1 to 32/352.8 for a while, because I didn't know any better. Artifacts, if they are there, are so minor and transient.

Does medium quality sound better to you than the highest quality SoX setting?

Likewise - Allo Boss, Pi4 - up sample to 32/384, med quality. Sound great! I also have an IQAudio PiDac+ , Pi3b and these settings sound better on this as well. Both have the same DAC chip so I am guessing that bypassing the internal filters is the crucial element.

Thanks Tim and Moode devs!