what is the formula for preference score?

[kenshone]

Just want to understand how the preference score weights different attributes of a speaker.

 

[AdamG]

Just want to understand how the preference score weights different attributes of a speaker.

Here is a primer read: https://www.audiosciencereview.com/...s/are-our-preferences-different-in-audio.284/

 

[kenshone]

Thanks for the link. That gives an abstract-level description. What would be useful for me to know is the variables that were used in the multiple regression model and the coefficients associated with each. It looks like I can pay $33 to buy access to the paper, but before I go so far, does anyone know these things off hand?

 

[kenshone]

Took a look at the AES paper abstract and this line caught my attention:

The premise of the CU model is that the sound power response of the loudspeaker should be flat, which we show is negatively correlated with preference rating. It is also based on 1/3-octave measurements that are shown to produce less accurate predictions of sound quality.

What is "sound power response?"

AES E-Library » A Multiple Regression Model for Predicting Loudspeaker Preference Using Objective Measurements: Part II - Development of the Model

A new model is presented that accurately predicts listener preference ratings of loudspeakers based on anechoic measurements. The model was tested using 70 different loudspeakers evaluated in 19 different listening tests. Its performance was compared to 2 models based on in-room measurements...

www.aes.org

 

[HarmonicTHD]

Took a look at the AES paper abstract and this line caught my attention:



What is "sound power response?"

AES E-Library » A Multiple Regression Model for Predicting Loudspeaker Preference Using Objective Measurements: Part II - Development of the Model

A new model is presented that accurately predicts listener preference ratings of loudspeakers based on anechoic measurements. The model was tested using 70 different loudspeakers evaluated in 19 different listening tests. Its performance was compared to 2 models based on in-room measurements...

www.aes.org

GitHub - pierreaubert/spinorama: A library to display and compare spinorama (speakers measurements) graphs.

A library to display and compare spinorama (speakers measurements) graphs. - pierreaubert/spinorama

github.com

Incl a ton of links to the various sources and studies.

Floyd Toole in his books explains also soundpower, listening window, directivity etc. (not the formula though, just to avoid misunderstandings).

 

[ernestcarl]

What is "sound power response?"

Related video discussion:

The Importance of Sound Power in Loudspeakers​

 

[fluid]

Thanks for the link. That gives an abstract-level description. What would be useful for me to know is the variables that were used in the multiple regression model and the coefficients associated with each. It looks like I can pay $33 to buy access to the paper, but before I go so far, does anyone know these things off hand?

Check the patent, as all patents it is clear as mud but the information is there
https://patents.google.com/patent/US20050195982A1/en

 

[NTK]

Even though the page is for the Harman headphone preference model, the paper (pdf) in the link is for the loudspeaker preference model (i.e. A Multiple Regression Model for Predicting Loudspeaker Preference Using Objective Measurements: Part II - Development of the Model). I suspect the "wrong" paper was uploaded.

https://www.researchgate.net/publication/332210798_A_Statistical_Model_that_Predicts_Listeners'_Preference_Ratings_of_Around-Ear_and_On-Ear_Headphones

 

[napilopez]

Just want to understand how the preference score weights different attributes of a speaker.

@kenshone This thread has the formula without reading the actual paper and doing the maths yourself, a long with some of the original hurdles in trying to implement it here =]

Speaker Equivalent SINAD Discussion

I thought I'd create a thread where suggestions/comments can be made on if Amir were to rank speakers based on measurements, how would he do so. As of right now, since Amir wants his rating to be based on listening tests and not just opinions, Sean Olive's Predicted Preference rating is likely...

www.audiosciencereview.com