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Table 2 Experimental conditions

From: Noise reduction for periodic signals using high-resolution frequency analysis

Analysis method

DFT (rectangular), DFT (Hanning), Ismo (rectangular), Ismo(Hanning), NHA

Amplitude modification

Spectral extraction, SS

Sampling frequency

44.1 KHz

Length of Music

2 s

Frame length

256, 512, 1024, 2048

Shift length

(Frame length)/4

Added noise

White Gaussian noise, Pink noise

Input SNR (dB)

-10, -5, 0, 5, 10

Instrument of MIDI

Flute, Grand piano, Reed organ, Overdrive guitar, Trumpet

Music (midi)

Do-Re-Mi, For Elise

Software synthesizer

YAMAHA XG WDM SoftSynthesizer