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Chord Mojo DAC-amp ☆★►FAQ in 3rd post!◄★☆

Discussion in 'Portable Source Gear' started by Mython, Oct 14, 2015.
  1. Mython Contributor
    Hmmm... I wonder if it's trying to automatically upsample everything to 24/192, like stock Android does?
    That might make it run out of CPU/RAM resources.
    Only a guess, and could be completely wrong.
  2. miketlse
    I think there was a post a couple of weeks ago (either here, or on the Oppo HA2 thread possibly) about using spotify and/or tidal offline.
    The problem arises because the offline music is stored in encrypted format, so that people cannot copy/pirate these offline files.
    These encrypted files can only be played by using the spotify or tidal app (or embedded software) to decrypt the files, and convert them to analogue music - so you do not have the opportunity to feed the decrypted digital music files to an external dac, like mojo.
  3. GreenBow

    @rkt31, also there is the Oppo HA-2 I think is a best buy. (It might be an amp as well that one.)
  4. miketlse
    I remember reading somewhere that someone was having issues with the beta, but it may have been your post on the Hugo thread.
    If so, then you are the only person - so I cannot suggest anything.
  5. kinetic758

    I think Tidal was given direct support in UAPP. Not much news on Spotify, however. Would moving to an iPhone exhibit the same issues? Or is it simply a case of Spotify + external DAC = impossible?
  6. xeroian

    Interesting thought though the corruption seems to start happening sooner than on previous betas and the sample rate light colours still match the music being played.
  7. miketlse
    I was only quoting from memory of those recent posts.
    I don't use Tidal or Spotify, so I do not have an in-depth knowledge of how to use either. It is better for some of the more knowledgeable users to offer advice to you.
  8. miketlse
    I presume it is just the normal situation whereby different parts of the OS are written by different teams, and the Beta is the first chance that they get to link everything together - only then do the users discover that different sub-programs are both trying to write/read data from the same locations in memory (resulting in overwritten/corrupted data), causing the sub-programs to pause whilst they decide how to progress.
    Once users point this out, the coders can fix the problem(s).
  9. xeroian

    Yeah I worked in software development for 40 years so I understand the process.

    Hoping for someone here who can say 'I too have this problem' or alternatively 'iOS 10 works for me on my 6s+.
  10. miketlse
    Maybe you were the only person brave enough to try the beta (who also uses an external DAC)?
  11. Mython Contributor
    Fair enough, yes; that does point away from the likelihood of upsampling being the cause.
    As per the warning in post #3, it is true that 9.3(iirc) beta had problems with stuttering/juddering of the audio, but I am surprised if the iOS development team have been so lacking in diligence that they allow the same - known issue to happen again - if they have, then whoever's responsible should be ashamed of themselves. Maybe it's the same cause, or maybe something different. Personally, I never trust beta releases, on any platform, until a few weeks after they've been guinea-pig-tested  [​IMG] 
  12. xeroian

    As an ex-developer I am happy to be a guinea pig (and ios10 is looking very solid) but I am concerned that if others are not so willing or Chord is not testing then we (Apple users) will all be bleating next month.
  13. Mython Contributor
    (if) it's broken then it's broken.
    ...and even if no guinea pigs mention it, and such a break continues into final release, then I hardly think that will absolve Apple of responsibility to fix it, LOL [​IMG]  May just take a couple of weeks longer, and red faces all around, in Cupertino
  14. EagleWings

    I am sure you are following the parallel conversation about the issues with iOS10 Beta. But I use iOS 9 and things are fine for the most part as The only reason I hook my phone to the Mojo is when I use Spotify.

    As I have reported earlier, RF/EMI noise is one issue which I get, so I'd have to switch my phone to airplane mode. And sometimes the Camera Adapter used to connect the apple device to the Mojo might not work. Which would require a phone reboot. I got the cable replaced and have not had the problem yet. But also, I don't use my phone much. There are others who have reported similar behavior. It's mostly a hit but sometimes it can be a miss.
  15. kinetic758

    Reading about all of these issues makes me want to forget the whole idea of using a separate DAC/amp!

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