TOPIC:

Reading the nanoDIGI datasheet and user manual it says that the Sample Rate (48kHz to 192kHz) depends on loaded plug-in.

The data sheet for the plugin, "nanoDIGI 2x8 Xover v1", says the sample rate is 96kHz. Does this mean the output is always 96kHz regardless of the input? I.e. is a CD at 44.1kHz upsampled to 96kHz? If so, what happens to the word length?

Will there be an option in future to be able to control the output sample rate?

That's indeed correct. The output of the SPDIF is always 96kHz regardless of the input rate. That's because there is a sample rate converter at the input (adapting to a fixed rate) and the DSP running inside the unit can only run at one fixed rate (i.e. DSP rate).

For that reason, control of the output sample rate is not likely at this time (i.e. downsampling back to 44.1kHz)

DevTeam

That is useful to know, thank you. So if I feed the nanoDIGI with a 24bit/96kHz signal there is no conversion?

I have been experimenting with FLAC recordings both at 16bit/44.1kHz and upsampled using SOX to 24/96. The latter seem to sound better, so I'm wondering if the nanoDIGI is keeping the word length at 16bits when it upsamples.

24/96k in = 24/96k out indeed.

Not sure what SOX is though. Is that a PC upsampler application?
When you feed a 16bit/44.1kHz, the internal sample rate converter will convert to 24/96khz.

Hoping this clarifies.

DevTeam

This is SOX: sox.sourceforge.net/

Maybe it uses a different algorithm to the internal sample rate converter.

With the current plug-in, does the nanoDIGI also accept a 24bit 192khz sample rate - and then convert the output to 24bit 96Khz?

That's indeed correct, the nanoDIGI will accept 24/192kHz and output 24/96kHz.

DevTeam

Bumping an old thread but what is better?
Set 44.1khz from computer to play Spotify and do the convers in nanaDIGI or set it to 96khz in computer?

@Solveit

From experience: the miniDSP products can do the resampling of 44.1 to 96kHz, BUT the hardwareresampling used is not completely "transparent", we have observed some loss of precision and sound stage depth especially with 44.1kHz resampling. The significantly better working approach is to upsample the 16/44.1 to 24/192kHz ahead of the miniDSP device (PC or other good upsampling device like Mutec MC-6) and have the miniDSP do an even devider down-sampling (e.g. by 2 in case of 192kHz).

Greetings,
Winfried

I max 96khz output from my soundcard via SPDIF.
I run it at 48khz now but have to convert it to 44.1khz when I do mixdown in Cubase.
Don't know if it does matter.