More > JRiver Media Center 31 for Mac
Harsh Sounding High End Audio Playback
JimH:
What is the model # of the Marantz? We could look at the input options. It probably has RCA jacks so you could use an inexpensive USB DAC to feed it. :-\
Try searching for USB DAC at Amazon.
Birchman:
I will research DAC options at a later date as there is too much else going on for me just now. Not sure if that is the fix I need as it might interfere with things like video play, Dolby digital, etc. so would have to do a bunch of research. Just a quick update: The Mac specific media players that sound correct process FLAC files which the Apple player does not process. Once again, thanks.
bob:
I've added a bunch of logging to the CoreAudio device open that would help show exactly what is happening.
Also, the next build (which I'll post today, 31.0.21) will show whether or not integer mode is being used in the audio path.
I did a little playing with this because it's actually pretty difficult to find a device which works in integer mode. None of the system devices on a M1 do.
Even if it says Integer in Audio Midi you can't open it as an app in Integer mode unless the device has the non-mixable attribute.
I'm pretty certain you need to use exclusive mode as well.
So I have 2 devices that work in integer mode. One is a Dragonfly USB Dac. It does 24 bit integer mode as well as the default float32 mode.
The other is a iFi iDSD Nano USB DAC which does 32 bit integer mode (no 24 bit integer mode) as well as the default float32 mode.
Testing the dragonfly I noticed a marked listening difference between the 32 bit float mode and the 24 bit integer mode that surprised me (and I wasn't expecting that).
The sound to me was clearer and brighter in Integer mode.
Anyway for everyone that's following this, hope it helps.
AGAWA:
Bob,
I just switched from Apogee Duet for Mac and IOS; Duet. With Integer Mode set in MC Audio MIDI was showing Integer, 24 bit non-mixable.
Apogee Symphony Desktop shows 24 bit Integer - Unmixable.
Apple Music is not setting unmixable attribute. JRiver does - uses also exclusive mode.
Just curious.
bob:
--- Quote from: AGAWA on June 09, 2023, 12:35:15 pm ---Bob,
I just switched from Apogee Duet for Mac and IOS; Duet. With Integer Mode set in MC Audio MIDI was showing Integer, 24 bit non-mixable.
Apogee Symphony Desktop shows 24 bit Integer - Unmixable.
Apple Music is not setting unmixable attribute. JRiver does - uses also exclusive mode.
Just curious.
--- End quote ---
Just to clarify, that is the case when my iFi is running in integer mode as far as the display in Audio-Midi is concerned (it switches to non-mixable during playback).
The system devices on some Macs (not the M1, but my Intel iMac for example) and also my monitor connected to the Mac M1 show that they can support integer mode in Audio-Midi however they are not settable to non-mixable mode as you can see by looking in the MC log for when the devices are queried for integer mode support upon open.
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