Introduction to video images for acoustic engineers <7th: Live distribution examples (live distribution by Takumi Sound-VR-50HD MK II)> [PROSOUND SEMINAR]

Takumi sounds based in Shiga Prefecture

A craftsmanship that produces/sound/video production of various events based in Nagahama City, Shiga Prefecture. In 2005, he started his acoustic work after planning a local event. Since 2014, he has been in charge of the production of the largest Yosakoi event in Shiga Prefecture, Appare Festival, and in recent years he has been doing a lot of jobs near Tokyo. According to the representative Nobuhiko Ikawa, it was about four years ago that the company started working on video production, which triggered the advertising effect of sponsoring companies.

"The local companies will be sponsored by the events we are working on, but we will post a company logo on the flyer even though we have a lot of money. I've always been sorry, so I thought I could do something more beneficial to sponsoring companies, and try to introduce an LED vision to regenerate the video. I wanted to do it, but at the local event, the budget was not abundant, and even if I could afford it, I had to go to Osaka or Kyoto to rent equipment. I thought it would be better. If you have a LED vision, you can play a little video, such as commercial commercials and promotional videos, so LED with 9 meters wide / 4 meters wide. I purchased a vision. "(Mr. Iikawa)

It is a simple system that uses a personal computer as a player and outputs it to an LED vision via a video switcher, and has been working on video production. Takumi sound. The production by LED vision has been popular among sponsoring companies and stakeholders, and the number of jobs involved in images has increased steadily.

"We are relatively late in the sound world, so it is difficult to get into a connection where you have good equipment. I thought it would be useless if I didn't enter a new field to go, so I introduced an LED vision, but this has become a really big "weapon" for us. Sound and video. By working with the production together, you can now get a job at a price that will never lose to other companies. If you rent an LED vision every time you have an event, I think it will never be possible at our price. (Mr. Iikawa)

LED vision was sent shortly after receiving the Loland V-1HD as a video switcher, and a few months later he upgraded to the AV Mixer VR-50HD. He said that he had other options for introducing a video switcher, but he selected Roland products without hesitation.

"There is a line alay speaker that I like for many years, but in the digital console I used before, I feel that the outline of the sound is blurred with the table. So, when I wanted to do something, I asked a Roland M-5000 from a Nagoya sound shop, but this was really good. The outline of the sound is clear, and the 96kHz process is different. I knew the sound of 96kHz, and I sold all the tables I used until then (laughs). From that experience, I had a good impression on Roland products, so I tried to make the video equipment Roland without hesitation. I thought "(Mr. Iikawa)

Introducing VR-50HD MK II with subsidies

This summer has come to live live distribution. That's right. He began to be interested in live distribution after the real event was no longer held due to Corona.

"The sound work of acoustics has disappeared around the spring, and people who start live distribution around come out, so it seems that they are interested. Investigate what equipment you need. Luckily, my VR-50HD had a USB terminal that can output streams on my computer (laughs). So I introduced Sony's XDCAM as a video camera and can support live distribution. We have established a system. But we didn't have a live distribution job from the beginning, and we came to the request after the site became a "hybrid". Hybrid only live distribution. Not a distribution with a little audience. The line at the site is very complicated, and you can't do it without the knowledge of sound. You shouldn't return the sound there and send it here, or it's messed up. It's confusing. Of course, in the case of music live, I couldn't hear the sound of the distribution unless I did a good miking ................. (Laughs).

After that, the number of video cameras has been increased, and now it is all made by Sony. AV mixers and video cameras are connected by basic SDI.

"Video equipment must consider the compatibility of the equipment more than the audio devices. Especially the HDMI connection is sensitive, and those that are really close are connected by HDMI. , Converted to basic SDI and connected. Cables are inexpensive, so they are all unified in Kanare. The LAN cable had a high quality one for dante connection. So it was lucky to be able to use it as it is. The cameras currently used are all made by Sony, 2 XDCAM PXW-X160, 2 XDCAM PXW-Z90, α7Ⅲ, ZV-1. I am particular about it because there are many people who use it around, but it is easy to match color. I used to use other manufacturers before, but the color did not match. I have had a hard time using PXW-X160 for each camera, and the PXW-Z90 is often used in drawing. Α7Ⅲ can be replaced with lenses, so XDCAM cannot handle it well. It is sometimes active. The other day, there was a fireworks display in Tsukiji, but it was recorded from the upper floor of the building, so PXW-X160 and PXW-Z90 are close to don. It has become. In such a case, the combination of α7Ⅲ and wide -angle lenses is useful. " Roland AV mixer, VR-50HD MK II. VR-50HD MK II, the successor model of the VR-50HD, is a high-quality 4-channel video switcher, a 12ch digital audio mixer, a multi-view monitor with a touch panel, and a USB3.0 streaming output. AV mixer with performance. It is a convenient equipment that can manipulate images and audio with one unit and perform live distribution as it is. It is a Takumi sound that loved the previous model VR-50HD, but in full-scale live distribution operations, it was upgraded to VR-50HD MK II.

"In the early spring, when the problem of the new colon virus was increasing, I applied for a small-scale business sustainable subsidy. I was able to introduce two cameras. The VR-50HD MK II has improved all the dissatisfied parts in the previous model, and it has become quite better. With the function, the head amplifier became completely new and it sounded very thick. The channel EQ has improved, and most of all, the master and AUX have a 15 -band graphic EQ. Building. This is really grateful because the howling points are different depending on the venue. I don't feel like it's inferior to small PA tables in both sound quality and functionality.

Piano + vocal music live distribution

In this magazine, we decided to show how the craftsmanship is being distributed live in what kind of system/operation. The site I bothered was a pianist Mari and a vocalist LINA ☆ Zo live on September 5. The venue was a space called Otoki -soo in Kawasaki City, Kanagawa Prefecture, and the musicians on the stage were Mari and the vocal LINA ☆ Zo, and the sound and video operation was Mr. Iikawa. I did it alone.

"Mari is a pianist from Shiga prefecture as me, and it is about an hour of spectator live distribution that also serves as LINA ☆ Zo's new song. The biggest purpose is to get Mari and LINA ☆ Zo on LIVE and Facebook Live, so I made it for free viewing. The performers are Mari and LINA ☆ Zo. The microphone is DPA 4099 on the up and down of the up light, the vocal microphone is SHURE KSM8. The sound is a very simple site with only four lines with MC microphones. Of course, all microphone outputs are output. , I did not use a single preamplifier, all of which were entered directly into VR-50HD MK II. " Use 4 ZV-1 units. Only α7Ⅲ was connected to HDMI, and other cameras were extended with SDI and connected to VR-50HD MK II (Fig. 1).

"The α7Ⅲ, which is installed in the middle of the front, pulls out the pianist and vocalist with two PXW-Z90, the ZV-1 is for the pianist's hand. This time, a musician. There is no monitor display for, and the video switched by VR-50HD MK II was also recorded in Blackmagic Video Assist. Live in small bands is almost such a system. Distribution devices are ATEN UC9020, which is highly performance. It does not require a PC, it can insert telops, support simultaneous distribution, and the operation is very stable. Also, at the live distribution site, a multi -band router is always used. Multiband.・ The router is a router that can be connected to the Internet by bundling multiple optical lines and mobile phone lines, so you can distribute stable distribution even if some lines are clogged. I used a bundled multi-band router. "(Mr. Iikawa)

[PROSOUND SEMINAR]">

, and is delivering live. What kind of operations do you operate using VR-50HD MK II on site? First, I asked a story from the sound mix.

"VR-50HD MK II is an audio mixer on the left half, but what you are doing is the same as the basic PA table. How to make sounds? Live distribution is often watched on a smartphone, so I monitor it with headphones and check how to go out. Specifically, it is more low than ordinary PA. I try to make it a jazz -like tuning or a refreshing sound. Since the viewing device is a smartphone, there is a limit to the playback ability of the speaker, so I put a bandwidth that cannot be played. What about? (Mr. Iikawa)

And what the reader of this magazine wants to know most is probably about the operation of the video. At the same time as the sound mix, what kind of operation is performed on the right half video switcher? Mr. Iikawa explained carefully.

"The basics are the switching of the camera. The input select switch on the right side switches four cameras. You can switch the camera according to the music or stage performance. In my case, I select the video I wanted to watch. I am not a person who has been doing the video all the time, so I am selecting with sensitivity. Multi -view that can check the video of the four cameras at the same time. While looking at the screen, for example, if you are a piano solo, you will want to see the pianist's hand and expression, so you can switch with the viewer. Often, it is said that "the more amateurs switches the video", but if you broadcast a fireworks with music, you can make a quicker switching (laughs), and you can't say it in general. The speed of switching the camera can be changed by the knob of Transition Time in the upper right, but this is the same as the reverb time in the PA table. This setting changes considerably depending on the switching speed. It's quite important. You can wipe two images, but I rarely use it. In summary, the only thing that is performed in music live is the operation of the camera switching and the switching speed. After that, it displays a still image and artist name telop such as "Distribution starts at 15:00". In the recently we worked on online, the sutras will be displayed in chroma key synthesis. " Mr. Iikawa)

The craftsmanship that was able to ride the live distribution boom of Corona evil by introducing the convenient equipment that can operate the sound and video with one unit. In the future, Idekawa, who wants to take full advantage of VR-50HD MK II and wants to challenge various jobs, gave advice to a company that is interested in live distribution / video production.

"If you are interested in distribution, you can start immediately if you prepare three AV mixers and video cameras. VR-50HD MK II has four systems. It has SDI and HDMI input, but most of the sites are entered one PowerPoint screen, so I think about three are just right at first. As I said earlier, all video cameras are the same manufacturer. If possible, it is better to match the same model. The rest is better to have an SDI output. The important thing in distributing as a business is the preparation and setup in advance. If you don't, you will definitely have trouble on site. The most common problem is around the sound, and if you look at the screen, you can see that there is no signal, but I can't see the sound. The other day. Even at the site, it was hard to think that ZOOM's sound was to be sent to Facebook Live at all. The voice line of the distribution is surprisingly complicated, so it is really important to set up. I guess it would have died now if I did it with sound (laughs). As with the sound, I study every day because it is very deep. " Recommended video equipment for engineers/acoustic companies #5 Roland V-1HD+classic video switchers upgrade models appear

Live distribution model of small HDMI video switchers

Live distribution A new product related to video / acoustics that are appearing one after another from each company in response to the growing demand. Among them, Roland's V-1HD+, which was announced last month, has become a big topic among stakeholders. V-1HD+is a product that greatly upgraded V-1HD, a popular video switcher at live distribution sites. The V-1HD, released in 2015, integrated a video switcher function and an audio mixer function to a half A4 size compact body, and developed a new genre called "Small HDMI Video Switcher". It is a product. The V-1HD concept remained the same, but the V-1HD+was greatly enhanced, and according to Roland, it was developed in a form reflecting many feedback received from users. This magazine readers, who are cheap and are interested in live distribution, can be said to be the hottest new products.

A newly equipped scaler and an EDID emulator.

V-1HD+is a video switcher that can switch four HDMI inputs with one switch. 。 At the right end is a traditional "T -bar" mounted on commercial video devices, and it also supports directing while fading to music. Like the conventional Roland video switchers, it is an intuitive and easy -to -understand operation system, and even those who are not used to video equipment will be able to use it immediately. One of the new functions related to video added in

V-1HD+is the "Scaler" and "EDID emulator" in "HDMI input 4" (fourth HDMI input). Until now, when connecting equipment with a different resolution from a general video signal such as a personal computer or tablet, the format was to be adjusted using a converter, but the "scaler" can be simply connected. 。 There is also an "EDID emulator" that sends information such as resolution and refresh rate to the connected device side, so it is possible to connect a computer or tablet without having to make a troublesome setting. This is a very useful new feature, as there are many situations where you want to display a computer or tablet screen at live distribution sites.

In addition, the large point of V-1HD+is that the multi-view screen division that allows you to check the video on one screen has increased from 4 to 10. As a result, one HDMI input of the four systems, the PGM output of the internal video bus and the PST output, the four still images (in V-1HD+, can play up to four still images in the same way as the video). You can now display / check on the screen.

The effects/synthetic functions of the video have been enhanced, and the number of layers that can overlap multiple images is increased to four. In addition, there is also a function called "DSK (downstream keyer)" that can easily synthesize telop. As a result, HDMI input 1 and HDMI input 2 are split (divided) split (divided) with PINP (Picture in Picture), and HDMI input 3 is overlapped on a small screen, and telops are repeated with "DSK" as the fourth layer. Such a full -fledged synthesis is also possible. Video like TV news programs can also be made with easy operation.

V-1HD+from above. Compared to the V-1HD, the number of operations has increased so that it can be operated more intuitively. The operator of an audio mixer is arranged in the lower left, a switch for changing the video is arranged in the lower right, and the "T-bar" that can be switched smoothly on the right end is also equipped. ·panel. Equipped with four HDMI inputs and two HDMI outputs. In V-1HD+, the audio input is a balanced XLR terminal, and an interface such as tally output and RS-232C is also installed. The number of divisions has increased to 10, and the four HDMI input, the internal video bus PGM output and the PST output, and four still images can be displayed on one screen. The number of layers that can be done is increased to four layers. Equipped with a "DSK (downstream keyer)" function that can easily synthesize the telop

Audio input is implemented with XLR terminals

The audio function is full -fledged, 24bit/48kHz compatible. Equipped with 14ch digital mixer. You can balance the audio signal of HDMI input to the same as a single audio mixer by repeating the audio of microphones and line input. In V-1HD+, the XLR terminal with a balanced specification is adopted for the two-system audio input, and it is also possible to directly connect a condenser microphone, which also supports phantom power supply. In addition, each audio input has three independent bands, high -pass filters, compressors, noise gates, and signal delays that can correct videos and audio gaps, and the audio input of the XLR terminal and mini terminal. Built -in. Compared to a single audio mixer, it is a fulfilling specification that is not as good as it is.

The operability has been brushed up, and a large number of operations that were not available in the V-1HD were installed, enabling more intuitive operations. It is a nice point that the peak indicator is provided on the main body panel, which allows you to instantly grasp the overall input level.

In addition, a recording control function that can operate the corresponding recorder via the HDMI cable, and the Tally output terminal/RS-232C terminal are also added. It can be said that it is a definitive version of a low -priced video switcher that supports live distribution, as well as event production and video production.

Options that allow HDMI output to a personal computer, USB Video Capture UVC-01 also appeared

V-1HD+, and a new product called UVC-01 was also announced. Let's introduce it. The palm-sized UVC-01 is a video capture device that converts HDMI output to USB 3.0 stream. This is a useful equipment that can build a high-quality live distribution environment simply by connecting a V-1HD+video switcher to an HDMI input and a USB terminal to a computer. PCs correspond to both Mac and Windows, and special drivers are not required for use. It is also convenient to operate with USB bath power. The built -in encoder is compatible with non -compression/up to 1920 x 1080/60p resolution, and is a hardware encoder, so it features low delay/low load/stable operation. It also has an analog audio input of the stereo mini terminal, and can be applied to the sound of HDMI input as needed. Although it is simple, it is a useful function when you want to overlap a little narration or SE.

UVC-01 is not only for Roland's video devices, but for most digital cameras and video cameras with HDMI output. If you use a free personal computer software called Roland genuine "Roland Live Recorder", it is possible to easily incorporate the HDMI output of the video camera into the PC (edition: "Roland Live Recorder" is only for Windows. For Mac. There is a software called "Video Capture for VR").

UVC-01 that can simply incorporate HDMI output of video equipment into a computer. This is also a new product that needs attention, just like V-1HD+.

Inquiries: Roland Co., Ltd. TEL: 050-3101-2555 (Customer Counseling Center) https://proav.roland.com/jp/