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jaakkopasanen / AutoEq

Automatic headphone equalization from frequency responses
MIT License
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How to restore old results? #737

Closed itkind closed 6 months ago

itkind commented 7 months ago

Hi, I don't know what happened but the new results make my headphone sound dull. Eg. the AWKT had a gain of +7.4 at 8758hz with Q 0.5 but now it has at 8684 a Q of 2.23. It had a +6.5 at 28hz Q0.6. Nothing of that is left. How come? How can I restore the old good results?

jaakkopasanen commented 7 months ago

You can click the "History" button, which leads you to https://github.com/jaakkopasanen/AutoEq/commits/master/results/crinacle/GRAS%2043AG-7%20over-ear/Audio-Technica%20ATH-AWKT

However, if you compare the different versions, you'll see that this particular one hasn't changed almost at all.

Do you mean even older than April?

itkind commented 7 months ago

You can click the "History" button, which leads you to https://github.com/jaakkopasanen/AutoEq/commits/master/results/crinacle/GRAS%2043AG-7%20over-ear/Audio-Technica%20ATH-AWKT

However, if you compare the different versions, you'll see that this particular one hasn't changed almost at all.

Do you mean even older than April?

Yes, older than April

jaakkopasanen commented 7 months ago

https://github.com/jaakkopasanen/AutoEq/commits/75ef88f072dc39a8241d2c7a05aa6afecde59357/results/crinacle/gras_43ag-7_harman_over-ear_2018/Audio-Technica%20ATH-AWKT

There still isn't a single result that has +7.4 at 8758hz with Q 0.5

itkind commented 7 months ago

https://github.com/jaakkopasanen/AutoEq/commits/75ef88f072dc39a8241d2c7a05aa6afecde59357/results/crinacle/gras_43ag-7_harman_over-ear_2018/Audio-Technica%20ATH-AWKT

There still isn't a single result that has +7.4 at 8758hz with Q 0.5

Not in that version but close. This makes a difference like day and night between the newer version. Image on 2023-11-27 07 14 21 PM

jaakkopasanen commented 7 months ago

Where did you find those results?

itkind commented 7 months ago

Where did you find those results?

Oops. I think I quote here a different headphone. I just double checked, there is no Q0.5 in all the results from 2021 but the rest fits the results: https://github.com/jaakkopasanen/AutoEq/tree/b4722274e8c2a17eb0673a5e5af50e6305ff0895/results/crinacle/gras_43ag-7_harman_over-ear_2018/Audio-Technica%20ATH-AWKT

Was there a change between Jan 17, 2021 and Sep 18, 2022?

jaakkopasanen commented 6 months ago

That's almost two years. Safe to say things have changed during this period, but I don't have good changelogs from the time so it's hard to say what exactly.