His engineer friend Maria visited. She didn’t reach for better cables. She opened a spectral analyzer.
She switched the filter to “Slow” or “NONE” (if his DAC supported it) and left ultrasonic content intact. Alex re-ran “Red Barchetta.” This time, the ride cymbal had shimmer and air. The stick attack on the bell was palpable. Rush - Moving Pictures -2015- -FLAC 24-192-
– Nyquist theory says 44.1kHz (CD) captures frequencies up to 22.05kHz, beyond human hearing (20kHz). So why 192kHz? Because it captures transient response and ultrasonic harmonics. – On Moving Pictures : The harmonics of Lifeson’s ES-355 guitar through his Hiwatt amplifiers produce content above 20kHz. While you cannot "hear" 30kHz, those frequencies intermodulate with audible frequencies, creating a sense of air and space. On the 192kHz transfer, the attack of the snare drum in "YYZ" stops being a "thwack" and becomes a physical pressure wave. His engineer friend Maria visited
Here’s a useful story for anyone working with high-resolution audio, specifically the 2015 FLAC 24-bit/192 kHz release of Rush’s Moving Pictures . She switched the filter to “Slow” or “NONE”