Rapture3D Audio Demonstration

Rapture3D is an OpenAL driver that can produce 3D headphone surround sound using HRTFs. In this video, I’ve attempted to demonstrate this effect using a program called “EFX10Show” to drag the position of various different sound sources around the listener. I’ve also used a program called “Renderer” at the start of the demonstration. “Renderer” and “EFX10Show” come with the OpenAL 1.1 Core SDK.

Rapture3D is able to produce much more than just simple left-to-right panning when you’re using stereo headphones. Take note of how it can simulate sounds sources from all around you. The difference between in-front and behind, as well as above and below, is quite clear.

Rapture3D is made by Blue Ripple Sound.

When you’ve finished watching this video, rewind it and watch it again … this time with your eyes closed.

This video was created with the “User” version of Rapture3D 12.3.29. The speaker layout was set to “Headphone Stereo (Compat.)”. During some sections of the video, the decoder was set to “HRTF (Green)” and, in others, it was set to “HRTF (Red)”.

Nguồn: https://speakforchange.org/

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  • Soooo which one is better? I cant understand any difference between HRTFs. Can u help me to choose the best for gaming (2.1 headset)

    Семен Дудкин June 27, 2020 7:56 am Reply
  • nie mam pojęcia co to robi na moim komputerze. Chciałem zobaczyć do czego służy 😀 fajne 

    Limon June 27, 2020 7:56 am Reply
  • Incidentally, Rapture3D has the ability to output a wide variety of speaker systems, including 2 front speakers, 5.1 and 7.1 systems. When using 2 front speakers, you can optionally enable crosstalk cancelled stereo with HRTFs. In 5.1 and 7.1 modes, you can optionally enable HRTF "tinting". In haven't tested any of these, though, because I only have headphones.

    WildCat June 27, 2020 7:56 am Reply
  • precisely why i say directsound. since most modern games arent built with 3d sound in mind. directsound was the last api that really excelled with positional audio. i would love to play system shock with rapture. i wonder what api the original quake used? that would be awesome!

    dzmcm June 27, 2020 7:56 am Reply
  • Yeah. I find it odd that there aren't more audio programmers in the games industry who know about HRTFs and want to implement them in their games.

    By the way, modern games no longer use DirectSound3D. These days, you'll mostly see games using things like XAudio2 and FMOD.

    WildCat June 27, 2020 7:56 am Reply
  • You are probably right then. I really wish there where more applications for this software. Too many people just don't know what they are missing.

    Now if only someone would make a wrapper to convert directsound3d to openAL (that works with rapture3d) we could really have some fun.

    dzmcm June 27, 2020 7:56 am Reply
  • I can assure you that Z is not the vertical axis. The reason for the confusion is because the particular HRTF data is not suited to your ear and head shape.

    Since I made this video, I have realized that Green isn't a good decoder for my ears because, like you, forward and backwards seems a lot like up and down. Red, however, is great and sounds almost perfect to me.

    WildCat June 27, 2020 7:56 am Reply
  • I happened to be in the mood to use my Hifiman re-0 IEMs tonight so I tested them out with a number of apps/vids.

    I suspected that the front/behind and above/below axis where backwards here. Now I am certain. Although my ears strongly favor red, green also clearly illustrate that Z is the vertical axis. If you let your expectations affect your ears (and we all do) it is far less convincing. Otherwise this is an excellent demonstration.

    dzmcm June 27, 2020 7:56 am Reply
  • How is possible that this works on 2.0 too??

    Someone June 27, 2020 7:56 am Reply
  • @thehyphenator It's likely that the HRTFs that I used in the video don't match your head shape, resulting in an unnatural sound. Rapture3D comes with 5 HRTF profiles to choose from so, hopefully, there would be one that's right for you.

    Upon closer listening, I also felt like the "Green" HRTF profile causes forward and back to sound a bit like above and below (like you described). "Red" works great for me, though. I also like the "Yellow" profile, which is not featured here.

    WildCat June 27, 2020 7:56 am Reply
  • Ironically, I felt the UT3 demo had better forward/back positioning, but weaker above/below positioning. Maybe the quality was lost on Youtube or something, seems like it has a lot of potential. Anyone know of a free alternative to this (preferably an OpenAL extension/feature)?

    thehyphenator June 27, 2020 7:56 am Reply
  • The first demo was unconvincing; it doesn't truly sound like a voice is in any of those positions. Also, the forward and back sounded like above and below, but at a closer distance than the actual above and below. Real binaural recordings work fine on my headphones (ie. virtual haircut).

    thehyphenator June 27, 2020 7:56 am Reply
  • @ogre130 Creative Labs has provided this functionality for over a decade, it's called EAX. (Aureal also provided 3D audio) The problem is that people are too cheap to buy after market sound cards anymore, and with multiple cores on CPU's becoming plentiful, this virtualized 3d sound card tech seems to be taking off. Call me old school, but I still prefer a dedicated soundcard. Rapture3D is quite impressive though, if you can afford to take the hit in CPU processing.

    k1DBLITZ June 27, 2020 7:56 am Reply
  • @puffpio It… kind of is. Ears can only really hear left, right, and volume. The rest is the subtle interpretation of it by the brain.

    Gradius June 27, 2020 7:56 am Reply
  • Is my brain broken or something, these 3d audio things or even binaural recordings never seem to work for me. it just sounds like left/right panning and volume high/low. Are there different HRTF's for in ear headphones vs regular can style headphones

    David Pio June 27, 2020 7:56 am Reply
  • @HenkSpankK Those sounds are distributed with Left 4 Dead 2. If you own it, then go to your Steam folder and use Windows search to find:
    (The water sound also comes with the original Left 4 Dead.)

    WildCat June 27, 2020 7:56 am Reply

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