| Abigor писал(а): |
Надо учесть, диски старые, вто время еще все было далеко от совершенства, такие вещи на по спектрограмме смотреть, будет внятнее |
Маленький оффтоп: смотри, запись 1935 (!) года:
auCDtect: CD records authenticity detector, version 0.8.2
Copyright (c) 2004 Oleg Berngardt. All rights reserved.
Copyright (c) 2004 Alexander Djourik. All rights reserved.
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Processing file: [1 (01) - Bach_JS(Yehudi Menuhin)-sonate_no1_pour violon seul-sol_mineur_bwv_1001-1_Adagio - .wav]
Detected average hi-boundary frequency: 2.050838e+004 Hz
Detected average lo-boundary frequency: 1.321819e+004 Hz
Detected average hi-cut frequency: 2.156929e+004 Hz
Detected average lo-cut frequency: 8.712791e+003 Hz
Maximum probablis boundary frequency: 2.157900e+004 Hz
Coefficient of nonlinearity of a phase: 3.837717e-001
First order smothness: 5.031915e-001
Second order smothness: 6.297872e-001
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This track looks like CDDA with probability 100%