Horowitz plays Liszt Sonata in B minor (1932) [Spatial Enhancement added to my 78 rpm Transfer]

English 78 rpm records from 1932.
His Master's Voice, recorded 12 November 1932, London,
Abbey Road Studio no. 3
Vladimir Horowitz (1903-1989), piano.
D.B.1855-1857 - Liszt Sonata in B minor (h-moll)

Transferred from the original 78 rpm record at 45 rpm with a standard USB turntable equipped with special needle (65µm).
Postprocessing in Audacity:
-inverse RIAA equalisation
-speeding up to 78 rpm
-DC correction
-auto click removal (threshold 200, length 20)
-mono conversion
-declicking/decrackling with ClickRepair (Wavelet, 100%, 100%, all)
-pitch correction
-normalisation to -2 dB
equalisation applied in Reaper:
-Type Notch, Freq. 12000 Hz, Gain 0 dB, Bandwidth 0.4 oct
-Type Low Shelf, Freq. 300 Hz, Gain 7 dB, Bandwidth 1.5 oct
Audacity:
-48 dB low pass filter above 12000 Hz

Spatial enhancement (for unprocessed mono, please use left channel only):
-prepare 3 copies of the monaural track (1, 2, 3)
-1, 2, 3: normalise to -4 dB
-2: switch to left channel
-3: switch to right channel, add 10 ms silence to the beginning
-2,3 join as stereo track
-mix 1 (-3 dB) with (2,3) (+3 dB)
-adjust balance
-normalise result to -0.1 dB

Видео Horowitz plays Liszt Sonata in B minor (1932) [Spatial Enhancement added to my 78 rpm Transfer] канала Martin Adler