CREMA
Member
*My English can be awkward using a translator. So, it may be difficult to answer the question. I'm sorry!
Impulcifer is a software that records the HRIR Response and allows you to listen to speakers on your headphones.
This is Free, but quite similar to the expensive Smyth Realiser A16, BACCH-HP technology.
https://github.com/jaakkopasanen/Impulcifer
If you have an ADC and a Binaural microphone, you can simply use Impulcifer.
Process HRIR to make it available to Hesuvi.
In my case, I created an HRIR response using a Motu M4, 48V converter and an MS-CB-900 Binaural microphone from Sound Professionals.
Here's the picture. I put a cap on it.
Reliablely located in the External Audio Canal.
The headphones used are HD800S, and the speakers are B2031A with some internal tweaks. the Subwoofer is SVS PB2000PRO.
The headphone amplifier is a topping L30, and the output is connected by the RCA of Motu M4.
And this is my response.
I tried to make it similar to Speaker harman target, but I've boosted 20Hz more. (BASS!)
I used Dirac Room Correction, 2.2M between speakers and 2.1M away from listeners.
The room size used for the measurement is 7.8x6.4x4.8, controlled using sound absorption materials, but not perfect.
Initial reflection is 18ms. Close to nearfield. RT60 is from 350ms to 400ms.
The environment with a lot of direct sound responded better to Impulcifer than the environment with a lot of reflective sound.
As for the listening experience...
First of all, it's almost the same in terms of Timbre.
The sound point stands out exactly in the front, and the speaker's spatiality is not perfect, but I can feel it well.
It can be a little unnatural because the sound doesn't change even if you move left and right.
Perhaps thanks to the characteristics of the headphones that can raise the sound freely and have low noise, depth and dynamics seem to be more vivid.
If you adjust the volume to the same as the speaker, you can hear almost the same sound, except for the feeling of the Sub Low Bass and the feeling of being surrounded.
I think the sound is more similar and accurate than I thought, but it's still close to simulation through headphones, so it's not completely the same as the speaker.
Nevertheless, I think it's well worth a try.
You can copy and use multiple spaces and speaker sounds, or try to virtualize 7 channels for use in games and movies.
If you use a webcam to fix the head position, I think you can try to blind test the speaker using HRIR.
Perhaps we can evaluate preferences by changing the HRIR of several speakers in one space. Mono or stereo, freely choosing.
Anyway, it must be a useful and excellent technique.
I hope many people experience it.
Thank you!
Impulcifer is a software that records the HRIR Response and allows you to listen to speakers on your headphones.
This is Free, but quite similar to the expensive Smyth Realiser A16, BACCH-HP technology.
https://github.com/jaakkopasanen/Impulcifer
If you have an ADC and a Binaural microphone, you can simply use Impulcifer.
Process HRIR to make it available to Hesuvi.
In my case, I created an HRIR response using a Motu M4, 48V converter and an MS-CB-900 Binaural microphone from Sound Professionals.
Here's the picture. I put a cap on it.
Reliablely located in the External Audio Canal.
The headphones used are HD800S, and the speakers are B2031A with some internal tweaks. the Subwoofer is SVS PB2000PRO.
The headphone amplifier is a topping L30, and the output is connected by the RCA of Motu M4.
And this is my response.
I tried to make it similar to Speaker harman target, but I've boosted 20Hz more. (BASS!)
I used Dirac Room Correction, 2.2M between speakers and 2.1M away from listeners.
The room size used for the measurement is 7.8x6.4x4.8, controlled using sound absorption materials, but not perfect.
Initial reflection is 18ms. Close to nearfield. RT60 is from 350ms to 400ms.
The environment with a lot of direct sound responded better to Impulcifer than the environment with a lot of reflective sound.
As for the listening experience...
First of all, it's almost the same in terms of Timbre.
The sound point stands out exactly in the front, and the speaker's spatiality is not perfect, but I can feel it well.
It can be a little unnatural because the sound doesn't change even if you move left and right.
Perhaps thanks to the characteristics of the headphones that can raise the sound freely and have low noise, depth and dynamics seem to be more vivid.
If you adjust the volume to the same as the speaker, you can hear almost the same sound, except for the feeling of the Sub Low Bass and the feeling of being surrounded.
I think the sound is more similar and accurate than I thought, but it's still close to simulation through headphones, so it's not completely the same as the speaker.
Nevertheless, I think it's well worth a try.
You can copy and use multiple spaces and speaker sounds, or try to virtualize 7 channels for use in games and movies.
If you use a webcam to fix the head position, I think you can try to blind test the speaker using HRIR.
Perhaps we can evaluate preferences by changing the HRIR of several speakers in one space. Mono or stereo, freely choosing.
Anyway, it must be a useful and excellent technique.
I hope many people experience it.
Thank you!
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