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  1. #1

    PicorePLayer and HiFiBerry DAC+ DSP

    HiFiBerry just launched their latest DSP equipped DAC https://www.hifiberry.com/blog/annou...tm_medium=mail .

    This DAC/DSP can be programmed to do many things, including negating room acoustical anomalies etc. Would be a fantastic if Picoreplayer could support this card and enable use of its capabilities on the 'card control' tab


    Sean

  2. #2
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    Their announcement page says that there are command line tools to control it so should be straight forward.
    Paul Webster
    http://dabdig.blogspot.com
    Author Radio France (FIP etc) plugin

  3. #3
    Quote Originally Posted by Paul Webster View Post
    Their announcement page says that there are command line tools to control it so should be straight forward.
    To do anything sophisticated would require a lot of command line commands. My plan is to use REW to generate a 'room negation' curve and download into the DSP ( https://github.com/hifiberry/hifiber.../rew-basics.md ). Its capable of doing a lot of other stuff but configuration from the 'Card Control' page of Picoreplayer would probably be complex; requiring a lot of string entry boxes on the page.

  4. #4
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    My guess, and only a guess because I did not find the manual covering it, is that you could use other tools / tooling to configure it and then copy some files over, include them in the pCP backup and then invoke that configuration it from command line in pCP.

    Update:
    Found this https://github.com/hifiberry/hifiber.../rew-basics.md
    Last edited by Paul Webster; 2018-08-30 at 00:43.
    Paul Webster
    http://dabdig.blogspot.com
    Author Radio France (FIP etc) plugin

  5. #5
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    I have used Inguz EQ as an LMS plugin for years, but having a DSP function in a RPi player may be simpler.
    Using REW with a squeezebox to determine Parametric Equaliser Settings (PEQ) is described in this post:
    https://forums.slimdevices.com/showt...l=1#post904176

    You could probably use REW to determine SOX equalisation settings and apply them to the SOX graphic equaliser function.
    A camel is a racehorse designed by a committee.

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  6. #6
    Senior Member Jeff07971's Avatar
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    Quote Originally Posted by Paul Webster View Post
    My guess, and only a guess because I did not find the manual covering it, is that you could use other tools / tooling to configure it and then copy some files over, include them in the pCP backup and then invoke that configuration it from command line in pCP.

    Update:
    Found this https://github.com/hifiberry/hifiber.../rew-basics.md
    Reading between the lines the DSP filters are stored in non volatile storage and only need to be uploaded (from a txt file) to the DAC once.

    Therefore you could use raspian to upload and then plug in a pCP SD card and all done !

    We could ask the devs to include "dsptools" as an extension then we could upload and apply all within pCP

    DSPTools

    Now I need to work out how to implement KEF KUBE 105/3 EQ on the DSP !!

    Jeff

    EDIT: I wonder if DSPTOOLS can be added as an "on demand" extension IE does not survive a reboot ?

    EDIT2: DSPTOOLS has a few dependencies so maybe the easiest way is just with a raspbian SDcard
    Last edited by Jeff07971; 2018-08-30 at 14:48.
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    Anyone tried one of these ?

    Just ordered one of these. Anyone tried one yet?
    A camel is a racehorse designed by a committee.

    Seen sprayed on the outside wall of the local library -
    Three things I hate in life :
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