AudioCircle

Industry Circles => NuPrime Audio => Topic started by: giordy60 on 4 Mar 2018, 07:00 pm

Title: dac 10 and SRC
Post by: giordy60 on 4 Mar 2018, 07:00 pm: hello Jason a technical question:
I have the dac 10, what happens to the signal if I send a file dsd 256 to the dac?
saber chip (or its implementation) acts with some filter?
or does nothing ?
thank you
Title: Re: dac 10 and SRC
Post by: giordy60 on 4 Mar 2018, 07:50 pm: same thing if I send to dac a PCM signal at 352 / 384kHz .....
how does the chip?
Title: Re: dac 10 and SRC
Post by: rustydoglim on 5 Mar 2018, 01:57 pm: The ESS9018 DAC chip performs native decoding for DSD or PCM.
Title: Re: dac 10 and SRC
Post by: giordy60 on 5 Mar 2018, 07:54 pm: so you confirm that the signal is not filtered in any way?
Title: Re: dac 10 and SRC
Post by: rustydoglim on 5 Mar 2018, 08:28 pm: I don't know how to answer this question. What are you trying to get at?
The signal obviously doesn't go straight into the DAC chip.
Title: Re: dac 10 and SRC
Post by: giordy60 on 5 Mar 2018, 08:51 pm: Quote from: rustydoglim on 5 Mar 2018, 08:28 pm

The signal obviously doesn't go straight into the DAC chip.

Is a "passthrough" performed?
Title: Re: dac 10 and SRC
Post by: giordy60 on 5 Mar 2018, 08:58 pm: Quote from: rustydoglim on 5 Mar 2018, 08:28 pm
What are you trying to get at?

I use software that makes oversampling its strong point
I try to get the signal to the conversion stage as it is generated.
avoiding that the ESS9018 puts us of his.
Title: Re: dac 10 and SRC
Post by: rustydoglim on 6 Mar 2018, 06:38 pm: Got it, have to check with engineer.
Title: Re: dac 10 and SRC
Post by: giordy60 on 6 Mar 2018, 11:00 pm: thanks Jason :wink:
Title: Re: dac 10 and SRC
Post by: giordy60 on 18 Mar 2018, 09:32 am: Quote from: rustydoglim on 6 Mar 2018, 06:38 pm
Got it, have to check with engineer.

Hi Jason
do you have any news ?
Title: Re: dac 10 and SRC
Post by: slash71 on 18 Mar 2018, 01:15 pm: Quote from: giordy60 on 5 Mar 2018, 08:58 pm
I use software that makes oversampling its strong point
..

what software ? sox?
Title: Re: dac 10 and SRC
Post by: giordy60 on 18 Mar 2018, 01:31 pm: Quote from: slash71 on 18 Mar 2018, 01:15 pm
what software ? sox?

This
https://www.signalyst.com/consumer.html
Title: Re: dac 10 and SRC
Post by: rustydoglim on 24 Mar 2018, 08:33 am: DAC-10 doesn't change the signal.
Title: Re: dac 10 and SRC
Post by: giordy60 on 25 Mar 2018, 04:17 pm: what does it mean does not change the signal?
filters are not used ?
pass through ?
( always with the signal at the highest resolution supported by dac )

regards
Title: Re: dac 10 and SRC
Post by: giordy60 on 8 Apr 2018, 12:29 pm: Hi Jason
have you got to talk to the engineer?
Title: Re: dac 10 and SRC
Post by: rustydoglim on 8 Apr 2018, 01:29 pm: Email support@nuprimeaudio.com and post here.
Title: Re: dac 10 and SRC
Post by: giordy60 on 8 Apr 2018, 05:20 pm: I have written other times ..... and no one answers ......

....................................... .......................................
Title: Re: dac 10 and SRC
Post by: rustydoglim on 9 Apr 2018, 12:45 am: Now that Jye, my product manager is taking over all the first line of support and product management, I am sure he will respond. In the past, sales assistant just forward to R&D and factory staff, and when they are busy, sometimes they ignore question like this that goes into the design and only the engineer can answer.
Title: Re: dac 10 and SRC
Post by: Jye on 9 Apr 2018, 07:43 am: The engineers have confirmed that no Sample Rate Conversion or Filtering is done on the DAC-10 before the signal goes into the DAC Chip.
Title: Re: dac 10 and SRC
Post by: giordy60 on 10 Apr 2018, 06:21 pm: Quote from: Jye on 9 Apr 2018, 07:43 am
The engineers have confirmed that no Sample Rate Conversion or Filtering is done on the DAC-10 before the signal goes into the DAC Chip.

then the SRC of the chip is disabled with maximum frequencies supported?
Title: Re: dac 10 and SRC
Post by: Jye on 11 Apr 2018, 05:16 am: Quote from: giordy60 on 10 Apr 2018, 06:21 pm
then the SRC of the chip is disabled with maximum frequencies supported?

I can't comment on how the ESS Sabre chip works internally, and whether there is a SRC in action within the Hyperstream architecture. We setup the chip such that PCM and DSD goes in the way it is from the source.
Title: Re: dac 10 and SRC
Post by: giordy60 on 13 Apr 2018, 11:25 am: Quote from: Jye on 11 Apr 2018, 05:16 am
I can't comment on how the ESS Sabre chip works internally, and whether there is a SRC in action within the Hyperstream architecture.

https://i.imgur.com/9Xxqtdi.png[/img]](https://i.imgur.com/9Xxqtdi.png) (http://[img)
Title: Re: dac 10 and SRC
Post by: giordy60 on 16 May 2018, 12:12 pm: Quote from: Jye on 11 Apr 2018, 05:16 am
...... We setup the chip such that PCM and DSD goes in the way it is from the source.

chip mapping can be changed ?
if so, you should know the signal path before and after the chip: scratch: