IAP Winter 2018 Update

“Improved Center Channel and Other Refinements”

The Winter 2018 IAP Firmware/Software updates all IAP models to the latest state. Below some highlights and a detailed list of changes.

The update is available here.

Center

While the Winter 2017 release brought major improvements to the Depth and Immersion, this release incorporates a major improvement to the Center center, released after more than 5 years of development.

While we thought that our previous center channel worked very well,  it has only been now, in comparison to the new algorithm, what additional potential there was!

The new algorithm works in 97 frequency bands – more than the number of keys of a piano! This allows separation of simultaneous tonal instruments, such as a soloist center violin, while other off center strings are playing.

 

Also, the new algorithm works with stereo phase and delay differences, preventing any timbral coloration when left-right delays occur in a recording. At higher frequencies, similar to the human hearing system, delay differences between the frequency-band temporal-envelopes are considered. Thus, even left-right uncorrelated signal is now routed to center when needed. The result is a center channel which sounds brilliant and full band.

 

Softwares

IAP Calibration has been improved in many ways. Here a few new features:

– Automatic detection of bad levels during measurement, and notification to user

– Auralization improvements, enabling yet better Illusonic Calibration Service (new auralizaton presets, improved signal processing)

IAP Controller has been updated to support the new upmix/center feature.

 

Detailed List of Additions and Improvements

Below is a detailed list of changes of this latest update, compared to the previous major update version (Spring 2017 Update).

Firmware IAP 2/4/8

– added Illusonic upmix 6 (new center + improvements)
– center on/off/on mutes sound to prevent switching artifact due to center’s new C=>LR crossover
– fixed bug in firmware versions 5.x, where input delay was not always changed when switching inputs
– improved dsp muting
– update HDMI 1.4 firmware, version 0B-27-06
– added support for future HDMI 2.0b boards
– added more characters for strings (+, :, !, *)
– added new dsp info menu (real-time info) and removed corresponding secret menus

Firmware IAP 16

– added Illusonic upmix 6 (new center + improvements)
– center on/off/on mutes sound to prevent switching artifact due to center’s new C=>LR crossover
– fixed bug in firmware versions 5.x, where input delay was not always changed when switching inputs
– improved dsp muting
– update HDMI 1.4 firmware, version 0B-27-06
– added support for future HDMI 2.0b boards
– added more characters for strings (+, :, !, *)
– added new dsp info menu (real-time info) and removed corresponding secret menus

IAP Controller Software

– modifications for upmix v6 (hide matrix option)
– added more characters for strings (+, :, !, *)

IAP Calibration Software

– added measurement levels safeguard
– now measurement is interrupted when mic level is not reasonable, user is notified