February 16, 2024 – Theoretica Applied Physics is pleased to release version 14 of its industry-leading spatial audio application, BACCH-dSP. This latest version, aside from introducing a few improvements to the performance, stability and efficiency of BACCH-dSP, is the first to feature Theoretica’s new room correction and speakers equalization technology, BACCH-ORC.

BACCH-ORC is a new paradigm in room correction. It is the most advanced room correction technology today. Unlike any other commercially available room correction system, BACCH-ORC relies on quick in-ear (binaural) acoustic measurements, millimeter-resolution head tracking, and cutting-edge algorithms derived from years of psychoacoustic research, to produce and apply individualized optimal room correction (ORC) filters that elevate any stereo loudspeaker playback system to its ultimate level of transparency.

Not only does BACCH-ORC correct for the spectral coloration of the loudspeakers and the listening room, it also neutralizes the spatial signature of the loudspeakers, which interferes with the spatial cues of the sources in the recording, leading to significantly enhanced spatial imaging. For more on ORC, read its official webpage.

BACCH-ORC requires acoustic measurements with the BACCH-BM in-ear microphone and is therefore available only for the Audiophile Edition and above.

The BACCH-ORC module can be added to BACCH-dSP at any time for $1000. However, in appreciation of the trust and enthusiastic support of our existing customers, we are offering a free perpetual license for the BACCH-ORC module to all those who have purchased BACCH-dSP Audiophile (or a higher edition level) by March 3, 2024, and whose 1-year Tech Support and Version Update Service Plan has not expired by that date. If you are receiving this email message, and you have BACCH-dSP Audiophile, Audiophile+ or Pro, you qualify for this offer. The second stage of the installation process described below will automatically add the ORC module to your BACCH-dSP app. After installation, we advise you to download and read the latest Version Notes for BACCH-dSP 14 to learn the simple steps for making and applying ORC filter..

If you are receiving this message, and you have the Intro edition, you are entitled to the new version update to BACCH-dSP 14 Intro, and we advise you to follow the instructions below to download and install it. If you decide to upgrade to the Audiophile edition and above at any time in the future, we are happy to offer you a free perpetual license for BACCH-dSP.

Installing BACCH-dSP 14 with ORC is a two-stage process:

In Stage I, you follow the steps below to download and run the latest installer to install BACCH-dSP 14 on your Mac. You can then run BACCH-dSP 14 as usual at the edition level you have purchased but without ORC, which requires a separate upgrade license.

If you have the Audiophile edition or above, you can proceed to Stage II of the installation when you are ready to add the BACCH-ORC module.

In Stage II you follow the steps below to send us a request for the ORC upgrade activation. You will then receive an email message from Theoretica with simple instructions for activating the perpetual license for the BACCH-ORC module. Please note that once you send the request you will not be able to use BACCH-dSP if you quit it again, until you receive the ORC upgrade activation from us. This can take up to 12 hours in the worst case (although we often reply within the hour).

Please note that unlike recent BACCH-dSP updates, v14 is a major “deep update” and this installation will overwrite all your existing BACCH-dSP settings and previously and BACCH filters. Also, please note that due to the deep changes in v 14, you will not be able to import filters and settings exported with previous versions of BACCH-dSP. You will need to reload you BACCH-BM equalization file, reset all your settings (or run the appropriate auto-configure script), load your individual BACCH-BM equalization file, and remake your BACCH filters from scratch. As long as your service plan is valid, you can contact us at info@theoretica.us for assistance in this process.

BACCH-dSP 14 can run under the latest Mac OS, Sonoma 14.3.1 , as well as all previous Mas OS versions down to Mojave 10.13. Please do not update to a version of Mac OS past the present latest version (Sonoma 14.3.1), before you hear from us confirming that BACCH-dSP is compatible with that Mac OS.