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Help quickly came in the form of setup utilities that required no knowledge of acoustics—only a willingness to position a microphone for a series of measurements and let the system do the rest. Audyssey was the first such utility to gain wide acceptance. Today, some arrive installed in AVRs and preamp-processors; others come as standalone devices or computer software. Most work well, providing precise level balance, compensating for unequal pathlength differences, and correcting in-room frequency response for all the speakers.In the two-channel world, things have proceeded much more slowly. I can think of several reasons. There are fewer speakers to integrate. Small, standmount speakers often benefit from uncorrected room modes to extend their range. Stereo listeners are much more likely to integrate analog sources—turntables, reel-to-reel tape, and old-fashioned radio tuners—into their systems and to resist converting that pure analog signal to digital so that it can be processed and room-corrected. And yet, these days, most two-channel audiophiles spend at least some of their time listening to digital, whether it's from a streaming service, locally stored downloaded or ripped files, or old-fashioned shiny silverdiscs. There's a place in the two-channel world for room-correction DSP.Dirac Live (the original)When it first appeared, Dirac Live was a software product that the user could buy, download, and install into a Windows or Mac computer used for music playback (footnote 1). As such, its use was limited to the more intrepid and technical audio consumers. For those of us who accepted the job, it was an ear-opener. Not only was it more flexible and precise than those convenient built-in products; it was audibly more capable of dealing with problematic room effects. I reviewed the original release of the Dirac Live Correction System (DLCS) in 2014 and installed it into both my systems, for multichannel and stereo.In its original implementation, the Dirac Audio Processor (DAP) acted as a virtual audio device, inserted into the signal chain between your music program and your DAC. The DAP accepted only PCM sources (no DSD) and, at the time of the review, only up to 24/96. The other half of DLCS, the Dirac Live Correction Tool (DLCT), was used to conduct measurements and create filters. Those filters were uploaded to the DAP, which applied them speaker by speaker to the music being played back. I loved it.Over time, DL added support for 24/192 PCM, expanded its hardware compatibility, and introduced a VST plug-in version of the DAP. Notably missing still was bass management. It's still missing, but not for long. (See sidebar, Dirac Live Bass Control.)Dirac Live 3I stayed in touch with the Dirac team. After a while, the responses to my questions and requests shifted from answers and fixes to intimations that they were directing their energy to a new product. At the 2018 Munich show, I had a long conversation with Jakob Ågren, Dirac Live's head of product management. He intimated that all my requests would be fulfilled by a new version of Dirac Live—but they'd be directing their earliest efforts to creating an embedded app for AVRs and prepros—not computer applications. It was, I'm sure, a wise business decision, but it wasn't what I wanted.Dirac Live 3 is finally here, not only on many hardware platforms but, finally, as a PC and Mac application. As promised, it offers many enhancements over earlier Dirac software, with more promised.The Dirac system still has two components: the Dirac Live Processor (DLP, formerly the DAP), which applies the filter corrections to music as it plays. In PCs and Macs, it can be installed as a plug-in or as a regular application. Plug-in support is not universal, but JRiver, Audirvana Studio, Amarra, and most DAWs support it.Many computer-based music apps can work with the standalone Dirac Processor. The processor module appears as a virtual soundcard (limited to 8 channels) and becomes the computer's default output device. The actual target device—the DAC—is specified in the Dirac Processor. There's no reason why this configuration should not work with all music players and the desktop apps of streaming services, but I could not get it to work with Roon (footnote 2). I used it successfully with JRiver, Apple Music, and Qobuz (up to 192kHz). A warning: The standalone application routes all sounds, including notifications, through the Dirac Processor to your system. If you don't turn off all system sounds, you and your neighbors risk ear-popping beeps, bells, and swooshes with the arrival of each new e-mail or the insertion of a USB drive.The second component, Dirac Live (formerly DLCT), makes all the measurements and generates the corrections. You pay for the DP: $349 for a stereo license, $499 for multichannel. DL is a free download.Up and runningDirac provides a detailed, step-by-step user manual; here, I present a summary of how it worked for me in actual use.With a PC or a Mac, you install the Dirac Processor first; once that's set up, the Dirac Live 3 calibration component recognizes and conforms to the channel/speaker configuration you specified in the Dirac Processor. I installed the Dirac Processor as a VST3 plug-in in JRiver (accepting all the defaults) and did most of my testing and listening that way. After starting up JRiver, I navigated to its DSP Studio menu, clicked on "Manage Plug-ins," and selected "Add JRiver, VST or WinAmp plug-ins." A window opened to the default location, and I selected DiracLiveProcessor.vst3.Up popped the Dirac app menu, with eight empty slots for correction filters, a gain control, and a dropdown list of 29 channel formats from mono to 7.1.2. Included on that list were quadraphonic as well as Ambisonics, first through fifth order! 5.1 was my choice (footnote 3).Footnote 1: The original Dirac Live was also offered in the Theta Casablanca IV, the Datasat RS20i, and the Emotiva XMC-1. A limited version of the current app is included with the NAD M10 integrated amplifier; see here.Footnote 2: Dirac seemed puzzled. Roon seemed uninterested.Footnote 3: Supported configurations for the plug-in are 2.0, 2.1, 3.1, 4.1, 5.0, 5.1, 5.0.2, 5.1.2, 6.0, 6.1, 7.0, 7.1, 7.0.2, 7.1.2, Quadraphonic, Pentagonal, Hexagonal, Octagonal, Ambisonic. The Standalone is limited to 8 channels. NEXT: Page 2 COMPANY INFODirac Research ABStationsgatan 23-25753 40 Uppsala, Sweden+46 18 4108210dirac.comARTICLE CONTENTSPage 1 Page 2 Dirac Live Bass Control Specifications Associated Equipment Log in or register to post comments COMMENTS Bass to mono? Submitted by Mike-48 on September 22, 2021 - 11:08am Kal, I enjoyed the review and am thankful for your continued interest in DSP applied to audio. To clarify what you wrote about DLBC, my impression is that it sums bass to mono?




dirac live free download


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Those who have purchased licenses for upgrade 1.x will have the same for 2.x. However in order to use the full functionality, users will need to visit live.dirac.com/login and use their account credentials to log-in and reset their password.


Dirac Live is the market-leading digital room correction technology that together with compatible high-quality home audio brands on the market radically improve your listening experience. Dirac Live employs a sophisticated analysis of your speakers and listening room to optimise the speakers overall audio performance and remove sound colourations introduced by the room.Unlike other correction systems, Dirac Live compensates for imperfections in the time domain as well as for in the frequency response. The result is substantially improved room correction compared to other room correction systems that only correct the frequency response, but not the impulse response. Dirac Live corrects both, thus offering improvements in the room acoustics, the stereo image, clarity and transient reproduction of the music making a remarkable difference to the staging, clarity, voice intelligibility of music, along with a deeper and tighter bass.Using a microphone to analyse the audio system and room, the software then uses this data to build an acoustic model of the listening environment and detects the deficiencies. After careful analysis, Dirac Live corrects for both the timing and amplitude aspects of the colourations in sound to deliver a uniquely pristine listening experience.Dirac Live technology is useful for both home audio systems and professional audio applications. Dirac Live is also used in the automotive industry, in manufacturers like Bentley, BMW, Rolls Royce and Volvo.The mobile app offers an intuitive and streamlined workflow that guides you through the measuring and adjustment processes. For advanced users there is also a desktop application offering a more detailed control over the room correction.The Dirac Live makes use of QT. QT is licensed under LGPLv3. For more information, contact info@dirac.com.


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