Zero-Order Hold Resampling

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HamedShahr
Posts: 3
Joined: Fri Sep 24, 2021 6:20 am

Zero-Order Hold Resampling

Post by HamedShahr » Fri Sep 24, 2021 6:25 am

Neutron Player currently offers two resampling options to choose: Quality and Audiophile. It would be nice to be able to choose other algorithms such as zero-order hold to simulate NOS dac response.

I would appreciate if you add zero-order hold and even other options to Neutron Player.

blaubär
Posts: 3313
Joined: Tue Apr 02, 2019 6:48 am

Re: Zero-Order Hold Resampling

Post by blaubär » Fri Sep 24, 2021 10:04 am

With "NOS dac" you mean Non-Oversampling DAC ?
As to zero-order hold, perhaps one of the two "audiophile" and "quality" already is this ... if only we knew :D .

HamedShahr
Posts: 3
Joined: Fri Sep 24, 2021 6:20 am

Re: Zero-Order Hold Resampling

Post by HamedShahr » Fri Sep 24, 2021 10:23 am

blaubär wrote:
Fri Sep 24, 2021 10:04 am
With "NOS dac" you mean Non-Oversampling DAC ?
As to zero-order hold, perhaps one of the two "audiophile" and "quality" already is this ... if only we knew :D .
Yes Non-Oversampling DAC or to better say it, non-oversampling filterless DAC.

I tested both Quality and Audiophile resampling with 44.1Khz white noise and they both attenuate the signal after 22.05khz as they should so no imaging artifacts is created.

Zero-order Hold basically doesn't filter anything at all so we get tons of imaging artifacts. However, the impulse signal is perfect; no pre-ringing nor post-ringing.

Zero-order Hold is the simplest resampling algorithm so there's no CPU problem. If Neutron developers add this feature it would be great.

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