AP Wrote:
-------------------------------------------------------
> Hi Guolive,
> Thank you for the feedback!
> The digital volume control is already there,
> hiding in the audio menu It is not something we
> though one would use as a normal volume control,
> i.e. using the VanityPRO as a "digital preamp".
> But it is still there to adjust the global output
> level, should you need to.
> Limiting the PCM sampling rate to 96kHz (2x) or
> upsampling everything to 192kHz (4x) is
> theoretically possible. We had similar
> functionality in the Avarice upsampler. The
> sampling rate would still change between the base
> frequencies (multiples of 44.1 and 48 kHz) though.
> Fractional sample rate change (44.148kHz) would
> need a little bit more resources to do it
> correctly.
> Thanks again!
>
> Regards,
> Pavel

Looks like Pavel already responded stating sample rate conversion could be possible. Any updates to share on this front Pavel?

Hi feurkils.
Well, it is important to say what the sample rate conversion would be used for. There are different reasons for using sample rate conversion.
- What can be potentially implemented in the VanityPRO is a synchronous conversion for increasing or decreasing the sample rate within the sample rate base For example 192k->96k (both based on 48k), 176.4k->88.2k (both based on 44.1k), but not 192k->88.2k. This can be useful for application where the DAC is only limited to 96kHz max sampling frequency, but can happily take anything below.
- What would not be that easy is ASRC (asynchronous resampling) to "fix" the output sampling rate regardless of the input one. This would be useful for users feeding the audio into a computer via USB, because USB audio lacks the functionality of determining the sampling rate by the USB device - only host can do that.

We are still considering the options, because the ASRC can be performed by other device on a dedicated output board. Although technically possible, I am afraid that it is just matter of commercial viability.
Best Regards,
Pavel

AP Wrote:
-------------------------------------------------------
> Hi Guolive,
> Thank you for the feedback!
> The digital volume control is already there,
> hiding in the audio menu It is not something we
> though one would use as a normal volume control,
> i.e. using the VanityPRO as a "digital preamp".
> But it is still there to adjust the global output
> level, should you need to.
> Limiting the PCM sampling rate to 96kHz (2x) or
> upsampling everything to 192kHz (4x) is
> theoretically possible. We had similar
> functionality in the Avarice upsampler. The
> sampling rate would still change between the base
> frequencies (multiples of 44.1 and 48 kHz) though.
> Fractional sample rate change (44.148kHz) would
> need a little bit more resources to do it
> correctly.
> Thanks again!
>
> Regards,
> Pavel

Looks like Pavel already responded stating sample rate conversion could be possible. Any updates to share on this front Pavel?