Welcome, Guest
Username: Password: Remember me
NOTE: This forum is community powered. Please be mindful that long time community members are here to help as part of a community effort. If you have a specific issue (e.g. hardware, failure), please use our tech support portal (Support menu - > Contact Us). Thanks a lot of your help in making a better community. :-)

TOPIC: D/A or A/D conversion

D/A or A/D conversion 7 months 6 days ago #33310

  • AW_miniDSP
  • AW_miniDSP's Avatar
  • Offline
  • Junior Boarder
  • Posts: 23
  • Karma: 0
PWR-ICE125 and PWR-ICE250 amplifiers have Stereo Digital: AES-EBU (XLR).

Is there any D/A- and/or A/D- conversion using this Stereo Digital: AES-EBU input?

What does this mean:"A digital input (AES-EBU/SPDIF) combined with a Sample Rate Converter (44.1~216kHz) saves on the A-D conversion"? www.minidsp.com/images/documents/Product%20Brief-PWR-ICE125.pdf

Are these amplifiers true digital PCM-to-PWM?

Rgds
AW
The administrator has disabled public write access.

D/A or A/D conversion 7 months 6 days ago #33311

  • john.reekie
  • john.reekie's Avatar
  • Offline
  • Platinum Boarder
  • Posts: 3061
  • Thank you received: 1303
  • Karma: 126
It means that when you use the AES/EBU digital input then the signal doesn't pass through an ADC before the DSP. So when using that input, the signal flow is:

(AES/EBU) -> ASRC -> DSP -> DAC -> 125ASX2 (ICEpower) -> Speakers

HTH :)
I am not miniDSP support.

"You must ask the right questions." - Dr. Alfred Lanning's hologram.
-> Have you read the User Manual??
-> Have you drawn and posted a diagram?
-> Have you posted a screenshot?
-> Have you posted your config file?
Last Edit: 7 months 6 days ago by john.reekie.
The administrator has disabled public write access.
The following user(s) said Thank You: devteam, AW_miniDSP

D/A or A/D conversion 4 months 1 week ago #34668

  • AW_miniDSP
  • AW_miniDSP's Avatar
  • Offline
  • Junior Boarder
  • Posts: 23
  • Karma: 0
And what about analog signal inputs?

Is there a ADC -> xxx -> DAC in front of the analog inputs of the 125/250ASX2 (ICEpower) for analog inputs?
There must be one for DSP?!?
Can this bypassed?
Is there a signal path for analog signals bypassing DSP using directly analog inputs on the 125/250ASX2 (ICEpower)?

Is it possible to use external DACs directly on the (analog) inputs of the 125/250ASX2 (ICEpower) modules built in PWR-ICE125/250 modules?

Or in other words: Is it possible to bypass all signal processing and conversions for analog inputs? To have an external DAC being the final DAC.

Second issue:
What does this mean: "Converter resolution / Sample rate 24bit / 96kHz (higher sample rate available with custom configuration)"?

Does DSP work at 24bit / 96kHz?

Can this be configured on the board?


Rgds
AW
The administrator has disabled public write access.

D/A or A/D conversion 4 months 1 week ago #34670

  • john.reekie
  • john.reekie's Avatar
  • Offline
  • Platinum Boarder
  • Posts: 3061
  • Thank you received: 1303
  • Karma: 126
You may find it helpful to have a read of the user manual, that may describe the amps better than the datasheet.
I am not miniDSP support.

"You must ask the right questions." - Dr. Alfred Lanning's hologram.
-> Have you read the User Manual??
-> Have you drawn and posted a diagram?
-> Have you posted a screenshot?
-> Have you posted your config file?
The administrator has disabled public write access.
The following user(s) said Thank You: devteam
Time to create page: 0.218 seconds