johnn29
100+ Head-Fier
- Joined
- Jun 2, 2015
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Watched a few shows/movies with 300ms on a couple of my HRIR's - no ill effects.
Think it's ready for the main branch!
Think it's ready for the main branch!
A couple of questions. Sorry if they are too basic, or I'm so confused even the questions don't make sense.
What's the difference between the hesuvi.wav and hrir.wav files? I've been using hesuvi.wav. What is hrir.wav for?
In the moment the plot shows a flat target. So I guess that's it.The doc says "Impulcifer will compensate for the headphone frequency response using headphone sine sweep recording". Is there a default eq curve that you compensate the headphone/ear measurement to match? I realize there are ways to bake in other eq adjustments as documented, but I'm wondering what the target is without the extra eq.csv file.
Hrir.wav has a different channel order compared to Hesuvi.wav. The reason is the very strange channel configuration in hesuvi.
Left curve in results plot is the average frequency response of all left ear impulse responses. The results plot contains all the equalizations, corrections and what not. It's the total EQ curve that gets sent to the headphones.
I'm not sure how the results curve relates to an the personal ideal FR target without speaker virtualization. Maybe it would be good with HRIR measurements that only have FL and FR channels. Also could be that ideal target for virtual speakers is a bit different than for headphones without virtualization.
lowdown - are you using the virtual room correction? That'll handle everything automagically and EQ to what's been shown to be a listening panel's preference - the Harman Room curve. If you are using that - that is why it sounds different.
A good frequency response in room would be +/- 5db - the virtual room correction can you you close to that.
I know humans find it hard to pick up on frequency nulls more than booms.
For what it's worth in my entire "career" of being an audio-nerd I've never put much stock into a flat frequency response. Your brain copes with much of it automatically. Now I have Impulcifer I can generate a flatter frequency response vs the natural room and A vs B. I couldn't really notice much difference outside of the bass boost. But it satisfies the audio-OCD in me to know that I have a much flatter frequency response than in my real room with the virtual room.
Ah I see what you mean. You can generate different virtual room targets that Jaako tried (https://github.com/jaakkopasanen/Impulcifer/tree/master/research/virtual-room-target). See if you like any of those better.
In my experience with trying to figure out what HRIR sounds good I was even thrown off by being in different rooms. I posted about it when I first generated a good HRIR that I was very happy with when listening in my home theater. I then took it into a cafe and found it sounded terrible and that Dolby Headphone sounded far better. It's because my brain wasn't expecting the theater sound in a loud and novel environment.
I'd say the easiest thing to do is shoot for the harman target and then use simple bass/mid/treble tone controls on some of your favorite tracks to see what you like. When Harman's studied room correction systems they found that listeners didn't actually prefer them and simple tone controls were sufficient anyway.
In some ways having a HRIR means we can do A vs B so much quicker and easier than on a real loud speaker setup. But in other ways because you can switch so quickly between HRIR's you don't give your brain enough time to compensate. You then end up fiddling with many settings. For my own listening i've created 3 go-to HRIR's. One is nearfield that I use when close to a screen - like a laptop or desktop monitor, the other is midfield where I'm sitting 1-2m away from a TV and the final is far-field whic his for projection use. The only one I can consistently use in all situations is nearfield - if I use the far field one in a different environment it just sounds wrong.
Aww. Thanks!Just want to say Impulcifer is so amazingly good. I thank you every day.
That is all.
I also added another target which Harman's headphone target for in room setup. It's essentially the same but with less treble. This is called harman-in-room-headphone-target.