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I've been lately scouring through the repository of results that are hosted at AutoEQ on Github and have noticed that there are many variations of PEQ filters for a particular headphone measured by various individuals such as Oratory and etc. I also noticed in some instances the methodology and instrument being used for measurements such as GRAS or EARS has led to different PEQ settings.
What I am stumped about is are PEQ settings being setup according to the measurements or are they being setup as interpretation of the measurements by the person doing the measurements. I'll provide two different PEQ settings below for Grado SR80E that I found with different FR based on measurements. Should there be a PEQ file generated by software being used by measurements? Maybe @amirm can shed some light on this and enlighten me on the subject.
Crinacle Grado SR80E PEQ
Preamp: -6.9 dB
Filter 1: ON PK Fc 28 Hz Gain 6.7 dB Q 0.85
Filter 2: ON PK Fc 1453 Hz Gain 1.7 dB Q 0.39
Filter 3: ON PK Fc 2086 Hz Gain -9.6 dB Q 3.36
Filter 4: ON PK Fc 4620 Hz Gain -6.2 dB Q 3.37
Filter 5: ON PK Fc 15608 Hz Gain 1.2 dB Q 0.06
Filter 6: ON PK Fc 42 Hz Gain 0.8 dB Q 4.29
Filter 7: ON PK Fc 2190 Hz Gain 0.5 dB Q 2.93
Filter 8: ON PK Fc 2421 Hz Gain -1.4 dB Q 3.97
Filter 9: ON PK Fc 3232 Hz Gain 2.6 dB Q 5.09
Filter 10: ON PK Fc 7686 Hz Gain -2.0 dB Q 3.00
Rtings Grado SR80E PEQ
Preamp: -7.0 dB
Filter 1: ON PK Fc 28 Hz Gain 6.6 dB Q 0.86
Filter 2: ON PK Fc 1482 Hz Gain 3.3 dB Q 0.41
Filter 3: ON PK Fc 2177 Hz Gain -7.6 dB Q 2.03
Filter 4: ON PK Fc 6376 Hz Gain -3.0 dB Q 2.95
Filter 5: ON PK Fc 8520 Hz Gain -1.8 dB Q 1.62
Filter 6: ON PK Fc 149 Hz Gain -1.7 dB Q 0.65
Filter 7: ON PK Fc 217 Hz Gain 0.8 dB Q 0.17
Filter 8: ON PK Fc 1055 Hz Gain -1.1 dB Q 3.02
Filter 9: ON PK Fc 4155 Hz Gain -2.6 dB Q 4.60
Filter 10: ON PK Fc 4541 Hz Gain 3.8 dB Q 7.07
What I am stumped about is are PEQ settings being setup according to the measurements or are they being setup as interpretation of the measurements by the person doing the measurements. I'll provide two different PEQ settings below for Grado SR80E that I found with different FR based on measurements. Should there be a PEQ file generated by software being used by measurements? Maybe @amirm can shed some light on this and enlighten me on the subject.
Crinacle Grado SR80E PEQ
Preamp: -6.9 dB
Filter 1: ON PK Fc 28 Hz Gain 6.7 dB Q 0.85
Filter 2: ON PK Fc 1453 Hz Gain 1.7 dB Q 0.39
Filter 3: ON PK Fc 2086 Hz Gain -9.6 dB Q 3.36
Filter 4: ON PK Fc 4620 Hz Gain -6.2 dB Q 3.37
Filter 5: ON PK Fc 15608 Hz Gain 1.2 dB Q 0.06
Filter 6: ON PK Fc 42 Hz Gain 0.8 dB Q 4.29
Filter 7: ON PK Fc 2190 Hz Gain 0.5 dB Q 2.93
Filter 8: ON PK Fc 2421 Hz Gain -1.4 dB Q 3.97
Filter 9: ON PK Fc 3232 Hz Gain 2.6 dB Q 5.09
Filter 10: ON PK Fc 7686 Hz Gain -2.0 dB Q 3.00
Rtings Grado SR80E PEQ
Preamp: -7.0 dB
Filter 1: ON PK Fc 28 Hz Gain 6.6 dB Q 0.86
Filter 2: ON PK Fc 1482 Hz Gain 3.3 dB Q 0.41
Filter 3: ON PK Fc 2177 Hz Gain -7.6 dB Q 2.03
Filter 4: ON PK Fc 6376 Hz Gain -3.0 dB Q 2.95
Filter 5: ON PK Fc 8520 Hz Gain -1.8 dB Q 1.62
Filter 6: ON PK Fc 149 Hz Gain -1.7 dB Q 0.65
Filter 7: ON PK Fc 217 Hz Gain 0.8 dB Q 0.17
Filter 8: ON PK Fc 1055 Hz Gain -1.1 dB Q 3.02
Filter 9: ON PK Fc 4155 Hz Gain -2.6 dB Q 4.60
Filter 10: ON PK Fc 4541 Hz Gain 3.8 dB Q 7.07