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How ASMR and 8D Audio works? 「顱內高潮」和8D音頻究竟是什麽?


We know 3D and 360 audio, but 8D audio?


To understand how it works. First, we have to explain what is binaural.



Binaural is a recording technique to capture stereo audio that is simulate the sound waves exactly as your ears hear. The picture below explained what that means.



In the picture is the microphone popularly used to create binaural recording. The ear shape cover redirect the sound wave before it reaches the microphone inside. It works exactly like our ears. This creepy looking head below was used for the Beck's concert on 2013 to capture the sound for their 360 cameras.



Now you are ready for the ASMR.


The name stand for Autonomous sensory meridian response (ASMR). By looking at this picture below you probably already know what it is and how it works. The performer record sound use binaural microphone to simulate the intimate activities with your ears.


You can understand more by checking famous YouTuber Rapunzel ASMR video:

https://youtu.be/qKHpcXUAQlM



However, for some people this idea maybe not so new. In fact many band experiment this idea back on 80s, and published their binaural songs.


Pink Floyd - The Final Cut: https://youtu.be/UxgZnVTyWRk

Pink Floyd (Alternate Album) - The Pros and Cons of Hitchhiking: https://youtu.be/0JyG_MadaCE



So what is 8D audio?


Recent years things has changed thanks to digital audio workstations. The remix getting more and more popular. Many music producers and sound engineers started to remix and produce immersive 360 audio for the headphones. However, instead of record and mix the binaural sound into the music. The new approach is to use binaural simulation software to manipulate the original stereo recording. By panning the sound in 360 degree to create binaural effect like the singer is singing from different directions to your ears. For this reason we think it is fair to define the "D" from 8D as "direction".


Check out some 8D music here:

Lana del Rey - Young And Beautiful (8D AUDIO) https://youtu.be/vOSGa5MHBMI

Billie Eilish - i love u | 8D AUDIO (With rain) https://youtu.be/f4FHfn6ur7I



"HEADPHONES ONLY"?!


You can see many ASMR and 8D music stated headphones only. This means you can not listen to the effect with speakers, even home theater speakers. But due to OPSIS II's special acoustic spatial processor that allow you to enjoy 8D/9D/16D music. Use two OPSIS II to playback the front and rear surround will get you the same experience you heard from your headphones.


Check out one of our testimonials here:

https://youtu.be/xanZVoxhsIA


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近年來,ASMR「顱內高潮」和8D音頻在YouTube上越來越流行。我們知道什麼是3D和360音頻,但它們是一樣的嗎?首先,我們先要瞭解什麼是雙耳錄音。



雙耳錄音是一種錄製技術,可以創建立體聲音頻,模擬與您的耳朵完全相同的聲波。下面這張圖片解釋了那是什麼意思。



這個是通常用於創建雙耳音頻的麥克風,耳罩可將聲波在到達麥克風內部之前重新定向。它的工作原理就像我們的耳朵,這種方法效果很好,可以重現逼真的3D雙耳音頻,專業人士可以用它來重現360度現場音樂會效果。下面這個奇怪的假頭被用於2013年貝克的音樂會,以捕捉其現場360度的聲音。



現在來瞭解一下ASMR 「顱內高潮」吧


ASMR的全稱是自發性直覺經絡反應,意思是指人體通過視、聽、觸、嗅等感知上的刺激,在顱内、頭皮、背部或身體其他部位產生的令人愉悅的獨特刺激感,又名耳音、内高潮等等。看下面這張圖片,您可能已經大概知道它是什麼。表演者使用雙耳麥克風記錄他們的聲音,以模擬您耳朵的運作。



當然ASMR這種方式其實很久之前就有人使用過,許多樂隊都在80年代嘗試了這個想法,最著名的是Pink Floyd, 他們早期的專輯有很多雙耳錄製的歌曲:

Pink Floyd - The Final Cut: https://youtu.be/UxgZnVTyWRk

Pink Floyd (Alternate Album) - The Pros and Cons of Hitchhiking: https://youtu.be/0JyG_MadaCE


那麼什麼是8D音頻?


近年來,由於出現越來越多數字音頻工作室,情況發生了變化,重新編曲和混音變得越來越受歡迎。許多音樂製作人和聲音工程師開始為耳機重新混音並製作身臨其境的360音頻。方法是非常不同的,不是將雙耳聲音錄製並混合到音樂中,新方法是使用二進制模擬軟件來操縱原始立體聲錄音。


通過以360度平移聲音來創建雙耳效果聲音,就像歌手從不同方向對著您耳朵唱歌一樣。它為聽眾提供了全新的、不同的聽覺體驗,從這個角度我們認為將8D的"D"定義為”方向“會更有意義。所以我們可以通過8D混音歌曲在耳機上體驗360度身臨其境的現場音樂會音頻。


這裏是一些8D音樂:

Lana del Rey - Young And Beautiful (8D AUDIO) https://youtu.be/vOSGa5MHBMI

Billie Eilish - i love u | 8D AUDIO (With rain) https://youtu.be/f4FHfn6ur7I


再也不是“只能用耳機聽”!


我們會看到很多ASMR ,8D音樂上面都寫著只能用耳機,這是因爲的確這些效果不能在揚聲器聽得到,就算家庭影院設備也不能。但是,由於OPSIS II的特殊空間處理器,您不僅可以聽到8D的音樂,而且9D、16D都可以,通過使用兩台OPSIS II達到全空間環繞聲效果,帶來跟頭戴式耳機一樣的環繞效果,而且可以在空間享受得到。


這是我們其中一個試聽測評,測評者提到,“感覺像在天文館面!”

https://youtu.be/xanZVoxhsIA


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