Originally Posted by ClawAndTalon
Please tell me more about this Auromatic upmixer.
Also, can you please detail how do you do the speaker switching?
Sent from my iPhone using Tapatalk
The Auromatic Upmixer try to generate the sonic bubble that native Auro-3D mixes are supposed to provide. It expands the sound to above and your listening room seems bigger. It copies the bed channels (5.1 or 7.1) to the height channels (Front High, Center High, Surround High, Top Surround) and applies some reverberation as if the sound was happening in a bigger room/hall.
When upmixing from stereo, I do not know how it generates the other bed channels, but it is more subtle and less dynamic/aggressive than the Dolby DSU or DTS Neural:X upmixers. Those other upmixers can potentially do things like “extract” and separate a particular sound/instrument from the stereo to rear channels. For example you listen the keyboards, some guitar, or chorus voices from the rear instead of from the front stereo. This “special effects”, depending on the source mix and on the music genre, may be very amazing, like in electronic music, or very strange/bad as in classical music if you expect all sound coming from the front stage and not a violin from the rear.
Auromatic tries to generate something like the original Auro-3D live recordings intention. They record with a pack of microphones capturing floor level sounds and height level sounds from the different micros positions and generates that each of the Auro-3D channels this way. Thus it sounds more “natural” as if you were there at the concert Hall instead of at you “small” room.
For my Speaker Switching design
, please find attached the .ZIP with an Excel with some of the design sketches. If you find something in Spanish, please use google translator. I only translated the essential.
In the four Worksheets you will find:
– Some design ideas and the actual speaker commutation switches of H1, H2, H3 output binding posts. In the names of each one of the eight configuration you have notes (in Spanish) that explain the purpose of each configuration.
– Mixer/amp to implement Dialog Lift to the Central to Central High Speaker
– Actual Scheme of the Switching connections
Programming Switch SONOFF
– The table of the programming settings for the SONOFF switches
How it works:
I can command the switches from the Mobile Application and also from Alexa (Amazon Echo) to select one of the different Eight Configurations.
BUT…. Is not as quick as that, because each configuration has its own Denon 8500 configuration with different Audyssey calibrations. So, for each change I must load from a different USB stick the corresponding configuration. (Just a minute or so)