Wednesday, April 10, 2024

New Experiments ~ Eclipse Golf Outing, The Best Disc Ever, Pint Day, & Speed Of Sound 08Apr24-10Apr24

Golf With Matt... I met MLC @ Kennedy for our first holes of the season; yes, it was during an eclipse. The course was in great shape for the date and Matt slayed it with 320yd drives, pin seeking approaches, and drained 10 footers... wow. I didn't suck. Of course we stopped at Comrade before I headed out to Summit Co to make some pickups.

New NestMT Configuration... Out in Summit I reconfigured the NestMT to use the Sony TV speaker array as a center channel, extending the killer dual DRC Onken CC. I could do this because the Yamaha AVR drives the amplified outputs simultaneously with the pre-amp outputs. The augmented CC improves dialogue and is quite good for tunes. I also dropped in a DVD player to check what cool concert discs could offer on the music theater.

Best Disc Ever... To show as a premier in the DVD player on the NestMT I chose the best concert disc ever, Roy Orbison Black & White Nights. This full 6 channel discrete Dolby Digital & DTS DVD from a 1987 concert at  the Coconut Grove in LA is spectacular. When can you see this array of headliners playing backup together in one show? When it's Roy Orbison; his friends for this show include Jackson Browne, T. Bone Burnett, Elvis Costello, k.d. lang, Bonnie Raitt, J.D. Souther, Bruce Springsteen, Tom Waits, and Jennifer Warnes. That says everything about the eclectic crowd too, including Chris Kristofferson, Daryl Hannah, and Billy Idol, along with many more celebs ~ normal humans couldn't get these tickets. Unmitigated success ~ so good on the NestMT, on Colorado Pint Day.

Colorado Pint Day @ ORB... Sure it's snowing on 4/10 in Frisco... it's Colorado, and it's Pint Day statewide. I gotta tip the Colorado Brewers Association with a purchase and commemorative glass from my fav brewery. Plus, when it's on tap, the In The Steep DDH is all that. Cheers y'all.

Do I Need To Adjust Delays For Differences In The Speed Of Sound @ Elevation... Not really. Let's say the temperature declines ~3.5°F for every 1Kft of elevation gain. Temperature is the dominant effect on the speed of sound in air on earth. The speed of sound, c, is Latin for "swiftness" and is know by the Newton–Laplace equation c= sqrt(Kₛ/ρ) where Kₛ is stiffness of the medium (air/water/whatev at whatev elevation) and ρ is density (folks, Newton considered this before exploration of thermodynaimcs!). Anyway, my gear adjusts delays (like due to distance from transducer to listener) in 1 msec increments. The difference from sea level to 10Kft elevation changes the speed of sound by just 25mph on 761mph (assuming all else equal); this'd require an adjustment of ~475Mft/s. So, at just 6ft listening distance, the reduction in the speed of sound at elevation is far below the tolerance of my gear to adjust. Good thing, it is hard enough balancing the, more significant, equipment processing delays well.

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