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-   -   Hi-end DSP based multi-channel integrated Preamp/Crossover/DAC project (https://www.diyaudio.com/forums/vendor-s-bazaar/264743-hi-dsp-based-multi-channel-integrated-preamp-crossover-dac-project.html)

Tranquility Bass 29th December 2019 03:44 AM

Quote:

Originally Posted by NATDBERG (https://www.diyaudio.com/forums/vendor-s-bazaar/264743-hi-dsp-based-multi-channel-integrated-preamp-crossover-dac-project-post6023658.html#post6023658)
By the way, how is the possibility of the production run looking? I'm not quite there with finances yet..

It's on track so far ;) For those who cannot afford the full amount a 20% deposit would suffice so we can allocate a Preamp for you. However to be fair to those who have already paid up the full amount, they will be placed first in the queue to receive their Preamp ;)

cheers
david

NATDBERG 31st December 2019 08:17 PM

Thanks for the info! Hopefully soon I shall be joining the queue (somewhere).

Tranquility Bass 2nd January 2020 12:23 AM

Quote:

Originally Posted by NATDBERG (https://www.diyaudio.com/forums/vendor-s-bazaar/264743-hi-dsp-based-multi-channel-integrated-preamp-crossover-dac-project-post6027730.html#post6027730)
Thanks for the info! Hopefully soon I shall be joining the queue (somewhere).

Sent you a PM for the payment details.

Kind Regards
David

vessk0 5th January 2020 11:50 AM

I want to know if the built-in DAC can be configured to be non-oversampling and switch off the high pass filter for a nice non-ringing impulse response?

DSP_Geek 5th January 2020 02:01 PM

Quote:

Originally Posted by vessk0 (https://www.diyaudio.com/forums/vendor-s-bazaar/264743-hi-dsp-based-multi-channel-integrated-preamp-crossover-dac-project-post6032944.html#post6032944)
I want to know if the built-in DAC can be configured to be non-oversampling and switch off the high pass filter for a nice non-ringing impulse response?

That does remind me: are the output DACs independent of the processing sample rate? In other words, can I process at 48 kHz and run my own oversampling filter to 192 kHz?

Why do such a fool thing? Just for kicks & grins I'd like to try a minimum-phase reconstruction filter. It'll cost a few clocks but nothing like the 100 Hz FIRs elsewhere in my system. :D

Tranquility Bass 5th January 2020 10:23 PM

Quote:

Originally Posted by vessk0 (https://www.diyaudio.com/forums/vendor-s-bazaar/264743-hi-dsp-based-multi-channel-integrated-preamp-crossover-dac-project-post6032944.html#post6032944)
I want to know if the built-in DAC can be configured to be non-oversampling and switch off the high pass filter for a nice non-ringing impulse response?

We weren't planning on doing anything like that as the ES9038PRO already provides 7 different OS filters. In any event even if we could override the internal OS filter and generate our own with the DSP it would chew up quite a bit of the DSP resources from the normal usage for crossover use.

cheers
david

Tranquility Bass 5th January 2020 10:25 PM

Quote:

Originally Posted by DSP_Geek (https://www.diyaudio.com/forums/vendor-s-bazaar/264743-hi-dsp-based-multi-channel-integrated-preamp-crossover-dac-project-post6033062.html#post6033062)
That does remind me: are the output DACs independent of the processing sample rate? In other words, can I process at 48 kHz and run my own oversampling filter to 192 kHz?

Why do such a fool thing? Just for kicks & grins I'd like to try a minimum-phase reconstruction filter. It'll cost a few clocks but nothing like the 100 Hz FIRs elsewhere in my system. :D

Yes you can do something like that in Audioweaver. You can down convert to a lower sampling frequency to do FIR's and the up convert back ;)

cheers
david


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