Raspberry Pi I2S to SPDIF Hat

Discussion in 'Digital: DACs, USB converters, decrapifiers' started by Michael Kelly, Apr 30, 2016.

  1. Michael Kelly

    Michael Kelly MOT: Pi 2 Design

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    The coupon code "SBAF" is back! Choose any case (even the 7") and it's free, just pay shipping. 2021 will be awesome.
     
  2. Merrick

    Merrick A lidless ear

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    I’m getting a coupon not found error when I enter it in.
     
  3. Tommy

    Tommy Acquaintance

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    Same here. PM'd Michael to let him now. Was almost ready to purchase last night and the timing of the coupon was perfect to push me over the edge!
     
  4. Michael Kelly

    Michael Kelly MOT: Pi 2 Design

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    Dummy me! Forgot to save after I made it! All set now.
     
  5. stevej

    stevej Rando

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    I'm looking to do something similar with a PI2AES on top of my USBridge Sig. Was wondering 1) how does your sound compare to the clean USB out of the USBridge and 2) looks like you are just using the standard USBridge power 5V/3A through the USB-C connector to power both the USBridge and 502?
     
  6. panasonicst60

    panasonicst60 Rando

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    I've been comparing a bunch of streamers to replace my CXC transport and have just made my decision just minutes ago to buy a PI2AES. I was about to pull the trigger on a Allo too. I just got started but I already want to take a deep dive already. I would like to get a good power supply for the PI2AES. What would be one that is 100% compatible with it? All these Volts and amps are over my head. Yes, I know a lot will tell me that it won't make a difference, but I would like to try one for myself. Yes, I do hear a difference with some upgraded power cord. Shoot me :) But please, nothing over $500. In all honesty I prefer to be around $200. Would a SHANTI from Allo work?
     
    Last edited: Jan 16, 2021
  7. Yethal

    Yethal Facebook Friend

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    Pi2Design sells a compatible one on their website
     
  8. Walderstorn

    Walderstorn Friend

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    Thanks. Ordered a new 7 case so i can try to paint it and see how it ends up.

    Really appreciate this!
     
  9. Michael Kelly

    Michael Kelly MOT: Pi 2 Design

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    Currently I have to cut all the 7-in cases by hand (actually with my desktop laser). But that means I don't get them in volume yet. That also means if I have some black acrylic floating around I could cut it in Black for you.

    PS don't tell anyone I don't want to have to do it for everybody! ;)

    PPS I'm not trying to take your fun away though!
     
  10. Walderstorn

    Walderstorn Friend

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    Please do! :D
     
  11. Tommy

    Tommy Acquaintance

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    Ooh, black. Pulled trigger slightly too fast last week. :p
     
  12. Michael Kelly

    Michael Kelly MOT: Pi 2 Design

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    Did we ship your order yet? It all depends by the way on how much black acrylic I have lying around. I don't make the cases on my own in-house cutter anymore so I haven't been buying the material.
     
  13. Tommy

    Tommy Acquaintance

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    Yep already on it’s way. No worries. :)
     
  14. HumanFly

    HumanFly Acquaintance

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    1.Not sure if it`s the output of the streamer or the input on the DAC (I have a Yggdrasil analog 2 but without the latest Unison-Usb) but I prefer the AES, not sure if everyone would call it better, I just prefer it. The USB is not bad either I think.
    2.Yup, I can do both, feed either the USBridge through the 502 or feed the 502 through the USBridge. I stuck with the latter for now because I`m too lasy to drill a hole in my dustcover. I did try both and I think the difference is smaller than the one between usb and aes. You could in theory use two PSU`s and power both (I think you need to remove a jumper on the 502 to do so, ask @MichaelKelly)
    On powersupplies: I own both the 5v Sbooster and the Allo Shanti (the one with two outputs) and the difference between those is size, the Shanti is HUUUUGE, I am not able to tell a difference in sound between the two. Some say they can and that the sbooster is still better. I`m not sure.

    VERY IMPORTANT EDIT:
    I have a 502DAC it`s the 502AES predecessor and it runs on 5v insteed of 24V for the 502AES. So my setup with a 5v Sbooster or Allo Shanti WILL NOT work with your 502AES.
     
  15. gixxerwimp

    gixxerwimp Professional tricycle rider

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    Just ordered another PI2AES for the bedroom, and the code still works (thanks!). You'll be shipping both straight and right-angle adapters, right?

    I tested out the wi-fi reception* last night with the unit from my main rig, and immediately noticed the sound is way clearer and has more blackground than phone > micro iDSD S/PDIF > Modibit. It's a bit brighter and brings out more sibilance too, but freeing me from the OTG USB cable will be very nice.

    *edit: in the bedroom
     
    Last edited: Jan 20, 2021
  16. Michael Kelly

    Michael Kelly MOT: Pi 2 Design

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    The free case code will work until the end of the month. :)
     
  17. lehmanhill

    lehmanhill Almost "Made"

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    I am having a weird problem with my RPi3/Pi2AES. Do you guys have any problem playing hi-res files?

    I usually play 16 bit/44.1 kHz files. A friend of mine asked me to review some files comparing components on an amp we work on. The comparison files he sent me are 24 bit/96 kHz FLAC. From the specs, the PiCorePlayer, the Pi2AES, and the Metrum Pavane dac should have no problem with these files. But when I try to play one, it plays for 5 seconds or less, then the sound stops, and the player disappears from the iPeng control app. iPeng actually jumps to another system like the player fell off the network somehow. I can say that the yellow LED on the Pi2AES is on indicating 48k or 96k, etc. The only way to get music again is to reboot the player.

    Am I missing some simple set up thing needed to play these files? I guess I have been fat, dumb, and happy in 44.1 land.

    Thanks in advance for any help.

    Jac
     
    Last edited: Jan 27, 2021
  18. dasman66

    dasman66 Self proclaimed lazy ass - friend

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    Nope, no problems at all
     
  19. Michael Kelly

    Michael Kelly MOT: Pi 2 Design

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    Could they possibly be protected somehow? Such a thing even possible? Just a weird random thought!
     
  20. haywood

    haywood Friend

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    Sounds like the system is crashing, check any log files your audio distro produces.

    If you’re sure the files are good try bumping any relevant audio buffers as it may just not be handling a data under-run gracefully. If you’re not sure about the files try sourcing some 24/96 files elsewhere (I’m sure there are better options but there seems to be some free test tracks here:

    https://helpguide.sony.net/high-res/sample1/v1/en/index.html
     

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