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Orange: Steinway · Mint: recipe
Stereo power preserves both channels. One recipe gain matches the Steinway’s 100–1000 ms RMS throughout every plot and playback. Spectra: Hann windows, 2048-point FFT for attack, 8192 for body/tail; common peak-relative dB scale. Spectrograms: 2048-point FFT, 30 Hz–20 kHz, −90 to 0 dBFS. Time zero uses the recording’s extraction onset and removes the recipe’s 128-sample filter delay.