Audiophile Stereo Imaging Test [See notes on how to loop.]

Web Reference: The place where audiophiles talk. Ask a question; get advice. Or just speak your mind. Apr 10, 2022 · Audiophile Grade Wall Receptacle Moving homes. Any recommendation for quality wall receptacle? Pangea? Audioquest? Thanks Jan 2, 2025 · All-in-One units for retiring audiophile & music lovers in 2025, say what? A good audio buddy friend closing in on his later parts of the golden years contacted me over the holidays. He started talking rather excitedly about these new all-in-one units. [Please disregard if this is nothing new for you and/or not of any real interest].

YouTube Excerpt: START PLAY, RIGHT CLICK THE IMAGE, AND SELECT LOOP for continuous, looping playback. Use this test to adjust your home STEREO speakers' separation, L/R toe-in (aiming), height, and up/down tilt, all for optimal, precisely focused imaging and sound stage width. Generally speaking, start with the front stereo speakers aimed directly at the main listening position, tweeters at or near ear height from your seated position, and forming an equilateral triangle with that position. Dolby considers this 60 degree "field of view" the widest allowed and 44 degrees is considered the narrowest. Keep in mind optimal results for a single listener may not be what's best for a group of two or more. NOTE: THIS TEST I HAVE CONDENSED DOWN WAS RECORDED ACOUSTICALLY, USING EITHER A STEREO MIC OR A SET OF MICS, so due to the vagaries of room acoustics, UN-calibrated mics with varying capsule sensitivities, their imprecise placement/aiming, a wandering/moving sound source (the narrator walking around), and a human's tendency to modulate their speaking voice level rather than being fixed in level, etc., the precision of the image locations won't be as exact as if the placement had been determined ELECTRICALLY by pan pot from a repeating, fixed level, MONO track, rather than from this level-varying, STEREO-mic'd, human-walking-around-a-room-live "signal generator". This may make this test unsuitable for some users needing greater precision. For precise adjustments a MONO source signal ELECTRICALLY/DIGITALLY steered to each exact imaging position from a calibrated, NON-human source would be more ideal than some guy running around a room! I do not own the copyright to any of the material; it is a video graphics enhanced version of re-sequenced material I've condensed from Chesky Records, CD number JD37, prepared under the fair use doctrine for educational/research purposes only. I have not applied any audio processing other than trimming the test to a much more useful short sequence that can easily be looped. This makes it much easier to use for setting exact speaker placement than in its original, extended form. This was originally designed for placing home stereo speakers but people using a derived center ch. may also find it of use too. Dolby Pro Logic II, for example, will interestingly place much of the "off-stage" material in the surround (rear) speakers [because it is largely out of phase content] however I do NOT advise using this test for adjusting the placement nor level of the surround speakers. This test is actually meant ONLY for optimizing the front sound stage presentation of 2ch systems. This is how I was taught in a "Masters Class" by Sonus Faber and technicians from Sumiko (high end lines I carried). Listen to the following test video which shows three front speakers however it is actually a stereo test, which you can put into a perpetual loop by right clicking the video image and selecting "Loop". Get two people to help you and have each helper stand directly behind each speaker and based on your two hand gestures (they watch) they mimic you. Your two hands rotate as if you were screwing in invisible, ceiling light bulbs. The beauty of this is there is no talking to mess up your concentration and it seems to you as if you can magically aim the speakers by your hands! Cool. If you rotate your left hand clockwise the left side helper rotates the aim of the left speaker by the same number of degrees, or at least as closely as they can. Same for the right. is to get as focused a center image as possible by having the two helpers work in unison as if they are locked together, can't vary, and need to mirror each other. This is called toe-in. Either cross the sound "beams" to a point in front of you, directly at your MLP, or behind LEGAL DISCLAIMER: The short, incomplete song excerpts are posted for noncommercial, nonprofit, educational/research purposes of audio sound reproduction equipment accuracy assessment under the fair use doctrine of Title 17 U.S. Code § 107 - Limitations on exclusive rights: Fair use "Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, including such use by reproduction in copies or phonorecords or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research, is not an infringement of copyright. In determining whether the use made of a work in any particular case is a fair use the factors to be considered shall include— (1) the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes;" 100K~0422

START PLAY, RIGHT CLICK THE IMAGE, AND SELECT LOOP for continuous, looping playback. Use this test to adjust your home STEREO speakers' separation,...

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