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In Reply to: RE: WTF? posted by Ivan303 on July 02, 2015 at 13:44:27
Yes, OSX re-samples everything to what is set in the Audio Midi settings.
The Well Tempered Computer
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This is true but players like Pure Music and Audirvana Plus (and others) can bypass Core Audio and automatically match and switch the sampling rate for you. However, I'm not sure if these players will work with Spotify and streaming services via web interface or an App. They work nicely for playing music files.
and files stored on my computer at Hi Rez (don't know exactly).
It would not surprise be if I can bypass Apple Core Audio with VLC and just don't know how. :-(
You cannot bypass Core Audio with VLC alone. Bypassing Core Audio is just one of the claims to fame with those other players like Pure Music, Audirvana Plus, Amarra, etc., along with other features like disabling services, setting OS priority for music playback, memory play, etc.Through the use of software like Audirvana Plus, you bypass Core Audio so it's out of the picture and does no sample rate conversion at all. AV+ can be setup to pass the file at it's native resolution from the Mac to DAC without altering it.... Or you can choose to alter some files.
For example, in Audirvana Plus I normally have it set for direct mode, exclusive access (hog) mode, integer mode and to not alter sampling rate at all, EXCEPT for my 16/44.1 files which get sampled 2x using the iZotope SRC via the Custom Settings.
The end result is also displayed correctly on the Ayre and the Oppo screens. On the Ayre my CD rips show up as 88KHz (2x 44.1) and my other files display natively as 88, 96, 192.
Audirvana Plus Preferences. Selet modes and memory
Select Sample Rate Converter and when and how it's used
Custom sample rate settings. Only my 44.1 files are converted 2x
Disable unneeded services and set OS priority for music. Other services and
processes can be disabled manually or through scripts
Edits: 07/02/15 07/02/15
via optical. Using the USB input only for YouTube, etc.
Very little difference when changing sample rate, at least for streaming internet Lossless FLAC.
Only have one or two Hi Rez files on my MacBook Air and they sound great.
Good. Glad to hear it! Enjoy.
Foolish me thinking it's in the 'sound' settings.
That said, 24/192 re-sampled to 32/48 sure sounds GOOD!
Too bad Apple Midi can't auto select.
That said, it sounds great either way.
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