New compensation target will be applied to the measurement datas

I'm planning to substitute the previous Olive-Welti compensation target to their latest compensation target which was put in AES paper 9382.

[Introduction]

Compared to a total of 11 listeners were participated in previous AES paper 8994, a total of 249 listeners were participated in AES paper 9382.

Using a MOA(Method Of Adjustment), listeners adjusted the related treble and bass levels of a headphone which was equalized to match a flat loudspeaker in the Harman reference listening room.

In their new study, preferred levels averaged across all programs and listeners were bass +6.6 dB and treble -1.4dB.

Green: Loudspeaker equalized to flat in-room response

Black: Curve from AES paper 8994

Blue: Curve from AES paper 9382

In overall aspect, there is no significant differences, but not to get confused I'll call this lastest curve as 'Harman Target' from now on.

[References]

• AES paper 8994 (Olive-Welti Target) : Listener Preferences for In-Room Loudspeaker and Headphone Target Responses
  

• AES paper 9382 (Harman Target) : Factors That Influence Listeners' Preferred Bass and Treble Levels in Headphones