Sound quality that critics "like to fall off the chair"! The charm of 4K / high resolution distribution "Live Extreme"

https://www.phileweb.com/review/article/202107/12/4398.html

I shared it.

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Hisaaki Hijikata

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July 12, 2021

■ What is the appeal of the 4K / high-resolution distribution system "Live Extreme" developed by Korg?

Recently, due to the influence of Corona, attention has been focused on streaming live and concert videos. Various artists are delivering concerts with various services, from simple ones using SNS to full-scale paid services.

However, one unfortunate thing as an audiophile is that the sound quality specifications of many services are not very high. The distribution spec of YouTube, which is one of the mainstream, is only 128kbps. The Berlin Philharmoniker's "Digital Concert Hall" has started lossless distribution of 48kHz / 24bit, and "MUSIC / SLASH" has developed "MUSIC / SLASH Premium" that supports up to 96kHz / 24bit. Although it appears in the section, in most cases, it is a low bit rate delivery in the AAC format of Rossy (lossy compression). In an era when 4K is not uncommon for video distribution, sound quality has not evolved much. If you wanted to enjoy it with better sound, it was difficult to spread it widely because it was necessary to install dedicated viewing software.

However, one solution I'm about to introduce has the potential to lift that limitation and become a game changer in the livestreaming world. It is the Internet video distribution system " Live Extreme " with the highest sound quality in the history of the industry, developed by KORG, a Japanese electronic musical instrument / audio maker .

Live Extreme logoThe specifications that can be distributed are maximum 4K / 30p for video, lossless for audio, and support for maximum PCM 384kHz / 24bit and DSD 5.6MHz, and maximum 8ch (7.1ch / 5.1.2ch / 5.1ch + stereo, etc.) can be distributed. And since it can be viewed on an Internet browser such as a personal computer or smartphone (that is, there is no need to install a dedicated application), it is also attractive that viewers can easily enjoy it.

On the Live Extreme official website, sample content that allows you to compare and audition the differences in sound depending on the format is also available.

In addition, this service brings unprecedented benefits not only to the recipient (viewer side) but also to the artist / distribution side in terms of both ease of introduction and cost. From the following, I would like to tell you the whole picture of Live Extreme, which can be said to be the definitive version of Internet live distribution.

■ You can watch 4K / high resolution distribution only with a web browser From

here, let's explain the four points of Live Extreme. First of all, the distribution standard is MPEG-DASH, which is standard for live distribution and on-demand distribution, and the format is H.264. The video specifications will be full HD (1,920 x 1,080 60fps) or 4K UHD (3,840 x 2,160 up to 30fps).

A system that benefits both general users and artists

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