Bob Stern

If you're interested in the theory as to what convolution actually means, here's a tutorial by Robert E Greene, TAS reviewer and UCLA math professor: Part 1: http://www.regonaudio.com/Digital%20Filters%20Part%20I.html Part 2: http://www.regonaudio.com/Digital%20Filters%20Part%20II.html

Confusion re product name and sales Flavio: Does the standalone Mac/Windows version (with standalone Processor) have a name to distinguish it from the Dirac Live product that works only with licensed AVRs? It appears you have removed the standalone Mac/Windows version from your web Shop. Are you offering 30-day trials of either 1.x or the 2.0 beta to new customers?

Since several of you are having problems with Roon, does Roon install updates automatically without alerting you? If so, a Roon update may have changed the way Roon streams to HQP.

Try using Finder Tags rather than relying entirely on the folder hierarchy. Tags have the advantage of facilitating multi-dimensional searches. For example, a given track can be tagged as both Classical and Piano. Of course, a true database permitting searching of multiple fields is even better. That's why I use iTunes or Swinsian as a music database manager.

https://www.prestomusic.com/classical/promotions/naxos-hi-res

The two most popular backup programs for Mac are SuperDuper and Carbon Copy Cloner. Both have been around for many years and are very reliable. Smart Backup is free, but I haven’t tried it: https://solesignal.com/smartbackup4/ Of course, the built-in rsync program is free, but I assume you don’t want to mess with geeky Terminal commands. (Carbon Copy Cloner and Smart Backup actually use rsync, so they can be thought of as user-friendly configuration interfaces for rsync. I believe SuperDuper uses lower level system commands rather than rsync.)

More seriously, I recommend tray-loading rather than slot-loading drives because discs sometimes get stuck in the latter. LG drives seem to get above-average ratings for durability. https://www.lg.com/us/burners-drives

You mean the sound of the motor whirring while ripping the CD? My two drives sound quite different in that regard.

I find ASDM7EC at DSD128 (the highest my CPU can go) has much better "purity" than ASDM7 at either DSD128 or DSD256. (My DAC cannot do DSD512.) Other parameters were Redbook source, poly-sinc-ext2 filter, 19-bit dither. According to OS X Activity Monitor, ASDM7EC at DSD128 loads CPU about 15% more than ASDM7 at DSD256.

In theory, peaks can be corrected very successfully by EQ (room correction), whereas narrow dips cannot be. I expect mitchco will be able to get great results for you with Acourate or REW.

Tip for Linux neophytes: The easiest way to run Linux commands, edit config files, etc is via SSH from a Mac or Windows PC. This gives you the familiar conveniences of a GUI OS such as copy/paste, using the mouse to select and edit text, etc. Q: Does the Bootable Image for Embedded include sshd? (fwiw, I'm not using Embedded anymore, but I experimented with installing it on Ubuntu Server before Desktop 4 obviated my reason for trying Embedded. I'm a total Linux neophyte myself, but my discovering the SSH approach saved me much aggravation.)

Do you have any other Thunderbolt cables that do insert fully in the same jack? If you've never used the Thunderbolt jack, it probably will loosen up the first time you use it. If you're not using Thunderbolt for anything else, I see little risk in pushing harder. Alternatively, take the Air to the Apple Store and ask them to assess whether the insertion force is excessive so as to merit warranty repair. In any event, too tight is better than too loose so that the cable could fall out during use!

Since you use the term RTP, did you work in semiconductor manufacturing?

I don’t know. Idagio only provides 44.1. Try it and find out. Be sure to set Audio MIDI Setup to 192 for the Loopback device. Rogue Amoeba Loopback admittedly is quite expensive at $99, but it has a very generous, flexible trial mode: It is not limited by number of days. It replaces the sound with white noise after 30 minutes of actual audio transmission. Time the program sits idly without capturing audio is not counted toward the 30 minutes. Each time you relaunch it, you get another 30 minutes.

"Wherefore" means "why", not "where".