Grammy Gear: What it Takes to Produce the Grammy Live Webcast

All 手机视频 Digital Media’s Joe Einstein supplied 流媒体 with a comprehensive list of his team’s equipment for the 格莱美现场直播，并附上评论.

名人(制作)

Four Sony HDC-1500 cameras (used on the red carpet and the backstage coverage)
One Sony HDC-2500 camera used on backstage wireless camera due to better sensitivity to low-light environments

This is an RF camera that uses licensed frequencies and will allow us access to roam on the red carpet and backstage during the broadcast. This is important because of the restrictions we have from the venue and fire marshal regarding cabling.

四台松下HE-120机器人摄像机
Eight pool and press feeds from various locations around the site
24 channels of DDR for recording and playback of media assets

布线

One of the big challenges with this show is the large number of locations we have equipment around the campus. 我们在红毯上有多个监控和摄像头, feeds and cameras at the Premiere broadcast (which happens at Nokia Theatre, 斯台普斯中心街对面), 还有后台和记者区的摄像头. Each area has cameras, video feeds, intercom, and interruptible foldback (IFB) for the talent. We end up with 8 IFBs in different locations and about 30 intercom drops outside the truck. The biggest challenge is that all the cabling has to be done with single mode fiber, due to the fact that the shortest run into the venues is about 4,000英尺. We use the in-house Staples Center fiber network and use various patch panels around the venue to get close to our production areas. In total, more than 45 miles of single-mode fiber and 6 miles of audio cable were used.

我们在光纤网络上使用的设备:

电视广播了: Used to convert the Sony cameras to use single mode fiber instead of the traditional SMPTE camera cable
Multidyne FiberSaver: CWDM technology used to “mux” multiple fiber feeds onto one strand of fiber (very important due to the face that we are very limited in the amount of fiber we have in various parts of the Staples Center)
电视广播TR6442-i15: Allows us to run intercom and IFB circuits over fiber
电视广播喋喋不休者: 我们用这些来通过光纤发送高清视频. This is used for the press and pool feed, the robotic camera, and on-set monitors. There were more than 25 video feeds on fiber by the end of the weekend.

图形

We use multiple Ross Expression units for all production graphics as well as social media integrations that happen throughout the day. 这与去年相比有所变化. In the past all social media has been placed in the page, but we are seeing more and more it is now being placed in the video stream. 这允许更简单的页面设计, 以及在移动设备上的统一体验, 连接电视, 等等.......

We use CG Social from CGLA to moderate and publish all the social media content into the main show.

视频点播剪裁

EVS XT[3] using IP Directors for VOD clipping for VOD assets on Grammy.com
VOD clips are clipped in real time throughout Sunday, 代码转换, 并在不到实时的情况下上传到格莱美.com网站.

传输

我们同时使用AT&T video services fiber and the AMVDM dark fiber network to send four discrete feeds from the site at Staples Center back to our broadcaster in Marina Del Rey, 加州. This gives us a fully geographically diverse transmission path between the Staples Center and our broadcast center.

AMVDM’s dark fiber network currently passes about 50GB/sec. 洛杉矶周围的视频流量. It is connected to LA Live (Staples Center), One Wilshire Colocation, and Pacific Television. This provides us video services access to PacTV, The Switch, Vyvx, etc.

On each circuit we compress each of the four video feeds to an MPEG-4 ASI stream, 然后我们把这些信号混合到电路上. 这些馈电使用Cobalt编码器进行编码. Those feeds are then decoded at our broadcast center back to HD-SDI using Harmonic and Ericsson decoders.

In addition to video transport, we also connect the two sites via Gig-e Ethernet services. 用于以下服务:

互联网接入(500MB/秒).)
视频点播的文件传输
Intercom circuits between the site and our broadcast center

实时编码服务

Each feed is encoded on both a primary and backup encoder and delivered to geographically diverse entry points into Akamai’s network.
Encoding takes place on Cisco Anystream 8100 and 9300 encoders.
All encoding services are monitored in our broadcast center and coordinated with Akamai in terms of end user delivery.

球员

AMVDM’s player deploys a four-angle play for the event that offers streaming thumbnails of all feeds and allows users to click the stream that they want to watch.

本文发表于2015年4月号 流媒体.

免费的

合资格订户

现在就订阅最新一期过去的问题

Shangri-LA Chases Streaming Video Success in Paradise: A Q&A

Online series Shangri-LA is a funny and heartfelt look at oddballs on the extreme fringes of Hollywood. Here's a conversation with the director about calling in favors and creating a show.

8月15日2019