6/7/2023 0 Comments Audirvana plus same output![]() It surprised me that they were unaware of this problem, even though I found numerous references to it, even on Apple forums. I began a discussion with Apple Support that is still ongoing. However, Apple Support states " which type of audio works with Macs, using HDMI? Apple supports 8-channel, 24-bit audio at 192kHz, Dolby Surround 5.1, and traditional stereo output."Īlthough this seemed to be a Mac problem, this Apple newbie was reluctant to point a finger. ![]() I can understand Apple's lack of support of DSD. Now, I know that HDMI can handle all of these formats, and I confirmed with Marantz that the AV8801 can accept them from a disc player connected to the same HDMI input to which I had connected the Mac mini. And when I checked JRiver's audio setup, all outputs had been reset to 24/96! Playing DSD or ISO files gave the same result. When I set JRiver to output 24/192 and played such a file, it playedbut at 24/96. No matter how I fooled around with the Mac's MIDI Audio and Settings menu, nothing higher was available. ![]() I could get no higher resolution than 24-bit/96kHznot too shabby, but not what I was aiming for. So, easy-peasy, I was up and running, playing all formats in stereo and in multichannel, but there were limits. I'm not sure yet, but I believe there might be a solution for this. I could comfortably use the iPad as a controller, but not without having the display on. Apparently, HDMI handshaking tells the mini when the display is disconnected (off), and it then disconnects both audio and video output. I'd hoped to use JRemote on my iPad and avoid running my plasma display, but so far, no go. It was the right choicethe interface was familiar, and on the first day of use I was able to get it to create libraries of the PCM, FLAC, DSD, and ISO files stored on my NAS. I took the easy way out and installed JRiver Music Center/Mac v.19, to take advantage of my experience with Music Center 19 on the PC. Besides, I require high resolution and multichannel playback, and despite iTunes' convenience, Apple tightly controls its file-format repertoire. I had no plans to use iTunesmy prior experience with it was not a happy one. Once you get past the stock settings, it's a hair here and there.To use the Mac mini for audio, however, I needed a music program. I also thought that filtering out the aliasing images above the nyquist using the EQ helped clarify the audible spectrum - but this could just be brain trickery. I tend to favor fewer pre echos at the expense of more post echo because I value "attack" over "separation" and I listen to very congested music with tons of instrumentation (prog rock). After that there are super small differences detected in the steepness and pre-ringing settings as this changes the pre and post echos of transients. The biggest difference I heard was in using stock settings in forced upsampling (power of 2) vs not using it. Even with my TOTL IEMs I was hard pressed to hear real differences. Of course, if you don't have very fast and resolving headphones/IEMs (and amp), you may not hear a difference. In my case FabFilter ProQ 2 - I have 96db/oct at 18khz and another 96db/oct at 19.5khz - I run in "natural phase" modeĪll of this is covered in detail in the PM I'll send you. These settings are best matched with a low pass filter scheme and VERY good EQ software. Force to "Power of 2 oversampling only".cutoff frequency 1.25 (must be this high because of the super slow rolloff in the steepness).limit your software output bit rate to match the max of your DAC - in my case I limited it to 24 bits down from 32 (I swear I heard a difference, but it was hard to tell).I'm just a copier here, not original poster! In the meantime, here are some settings I've been using with A+ and iZotope upsampling that I've basically copied from the link I'll provide to you.
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