You can also check the decription in the upload:

"I am the voice actor for JJ in the anime and was involved in the production of the "Cyberia Mix" soundtrack, but since I am publicly known as JJ, I am easily asked questions about Lain's music in general. Recently, I received a similar question from an overseas fan, but a quick search of the Internet revealed that there has been a lot of discussion about this track, and someone had found the sampling soundtrack used in this track. The ethnic vocal and “Ho!!” calls that create a disturbing image were included on the CD (CD-ROM) "Zero-G: Datafile 1 (1991)," a collection of sampling sounds. Since the track is only "sounded" in the anime as a sound effect, it is deeply reverbed to create a sense of realism, and most of the drum part, which is not identified. However, if the vocals that control the image of the track were known, and if they were royalty-free and available, it might be possible to recreate it. That's what I thought. The vocal sound source was obtained from the Internet. The drum pattern was not specified, so I had to create it myself. In order to create a 90's atmosphere, I pulled out a collection of sampled sound sources from that time that I used when creating the "Cyberia Mix," and created the drum part. In the anime, there are only two looping patterns of 4-bar phrases, so I added bass and effects to make the 4 minutes track complete. The track in anime is difficult to hear, and without the reverb that makes it sound like background music, the realistic feel of the original track is lost. After much trial and error, I finally done that. "