cuepilot技术文件的翻译——如何使用时间代码

使用时间码

介绍

Timecode is a powerful yet simple tool, that keeps all departments in a live production in sync. That includes, for example, the Lighting, Audio, Content playback and Camera departments

时间码是一个强大但是简单的工具,保证直播中的所有部门之间的同步。包括灯光部门、音频部门、播放和摄像部门。

In a live production environment, there is one true Timecode source, which is distributed around the different departments. Everyone adjusts their own Timelines in their respective systems, to match the start of the Linear Timecode, the LTC. 

The Audio department is often the source of the LTC. When they hit play on their playback track, everyone follows. The source device might be Pro Tools or Cubase or even EVS. The timecode is over LTC and plugged in to various devices, including CuePilot’s Studio Server.

When the director calls action, the audio playback track is played, and all departments devices begin receiving the LTC and follow. The backing music track is played to the vocalist’s in-ear monitors, the lights hit their cues, and the CuePilot Timeline will begin to play, switching cameras on the vision switcher, and Cueapp will begin cueing the camera operators for the shots as planned.

导演喊开始,音轨开始播放,所有的部门的设备都会收到时间码,并且开始同步。背景伴奏在歌手的耳返里,灯光开始触发cue点,cuepilot的时间线也开始播放,在切换台开始切换机位,CUEapp开始给摄像做cue点提示,按照脚本拍摄。

Working with Timecode requires that the performer(s), perform in sync with the playback track, so that their live vocals match the music. If there are instruments being played and singing live but not to a playback track, the performers will need a click track, to keep them performing in sync with all of the production elements being cued with Timecode around them.

采用时间码,需要表演者的表演和播放的音轨同步,这样人声和音乐才能匹配。如果是现场乐队演奏,歌手真唱,没有播背景音乐的轨道,那就需要一个click轨,这样不仅能保持表演的同步,还能让所有参与直播的部门都得到一个时间码。

 

Start Timecode of Acts and Applying Offsets

Knowing the timecode of the start of the playback track is essential to ensuring that the Cues execute correctly live. LTC has hours, minutes, seconds and frames. In pre-production, you need to determine what start time each performance has.

知道回放音轨的时间码起点是非常有必要的,这样才能保证cue点是准确无误的。LTC有时、分、秒、帧组成,在前期阶段,必须要定下来每个节目的起始时间。

A simple convention for smaller shows, is to have the start timecode for each Act begin on a new hour. i.e Act 1 is 01:00:00:00, Act 2 is 02:00:00:00, Act 3 is 03:00:00:00. 

对于小型演出,一般有个惯例,每一个曲目的起始时间,都是一个新的“小时”,比如曲目一的LTC码是01:00:00:00,曲目二是02:00:00:00,曲目三是03:00:00:00

The start of an Act in CuePilot’s Timeline is always at 0:00:00, however with an Offset applied, Act 1 will roll when the incoming LTC his 01:00:00:00.

在cuepilot时间线上,每个曲目的起始时间都是0:00:00,尽管有偏移量,当LTC是01:00:00:00,曲目01就会开始播放。

You set the start time for each Act by applying the Timecode Offset. You can set this when you add a new Act, or from the Rundown view select the Act and then the … , or from the Act view click on the Act’s name at the top. This opens the Act’s edit dialog.

通过时间码偏移量可以设置每个曲目的开始时间。增加一个新曲目就可以设置,或者从Rundown的界面中选择曲目(act),然后来设置。或者从Act的界面点击act的名称,打开act的编辑对话框。

In the field TC. Offset, enter the timecode for that Act. For instance, if Act 1 is going to be at 01:00:00:00, then enter that. The Timeline in CuePilot is still 0:00:00, and when the incoming LTC gets to 01:00:00:00, Act 1 will start playing.

 

It can also be handy to set a different start time to 0:00:00. Maybe you need a 5 second count in (as the performer has click track before the performance starts, and you have programmed lights and effects to crescendo just before the singing begins. Leave the Timecode Offset as 01:00:00:00 but change the Act’s start time to be -5:00, for minus 5 seconds. When the incoming LTC is 00:59:55:00 CuePilot will start following and then at 01:00:00:00 the music will start playing, all in sync as planned.

将不同的开始时间设置为0:00:00也是很方便的。也许你需要一个5秒的倒计时(因为表演者在表演开始前已经点击了音轨,而你已经将灯光和效果在歌唱开始前渐强。将时间码偏移保留为01:00:00:00,但将演员的开始时间改为-5:00,即减去5秒。当传入的LTC为00:59:55:00时,CuePilot将开始跟随,然后在01:00:00:00时,音乐将开始播放,所有这些都按计划同步进行。

 

 

Studio Panel and LTC Sync

When it comes time to the rehearsals and the live show, and the audio department’s timecode is being generated, you need to turn on the Studio Panel to enable CuePilot to sync with LTC. 

In Setup > Layout, set Studio Panel to Show, and save.

 开始彩排和现场直播的时候,音频部门会生成时间码,需要打开音频面板上的开关,让cuepilot和LTC同步。

With Studio Panel set to show, you’ll see an extra row of studio controls displayed. CuePilot Studio Servers and the BOB unit have multiple LTC in, so you will need to select which Timecode source to follow. In this case, the XLR cable from Pro Tools with LTC is plugged in to LTC 1, so LTC 1 is selected and when select it is highlighted in orange. Additionally there is a chain symbol, to indicate that an Offset is set.  

在工作室面板设置为显示时,你会看到额外的一排工作室控制显示。CuePilot Studio Servers和BOB设备有多个LTC输入,因此你需要选择要遵循的时间码源。在本例中,来自Pro Tools的XLR电缆与LTC一起插入LTC 1,因此LTC 1被选中,选中后它会以橙色突出显示。此外,还有一个链状符号,表示已经设置了一个偏移。

 

Due to the potential for slight delays in LTC between devices like the switcher, EVS, lighting department etc, it may be necessary to further manually adjust the offset by a few frames, to get the most accurate sync. Next to where the Offset is displayed, are buttons with an arrow left and right, where you can adjust the Offset frame by frame as necessary. 

由于切换、EVS、灯光部门等设备之间的LTC可能存在轻微的延迟,因此可能需要进一步手动调整几帧的偏移量,以获得最精确的同步。在显示偏移量的地方旁边,有一个左右箭头的按钮,你可以根据需要逐帧调整偏移量。

 

Perhaps during rehearsals you want to quickly review the performance that you recorded to EVS. As long as the timecode that the EVS recorded matches, i.e. LTC 1 was also going in to EVS, then you can play back from EVS and it’s timecode will trigger the CuePilot to follow. In CuePilot switch off LTC 1 sync, and turn on LTC 2 sync, (EVS’s LTC will need to be plugged in to the LTC 2). Then when you play the recorded performance from EVS, CuePilot will follow. You can stop and adjust Cues, and then go for another record. 

也许在排练过程中,你想快速回顾你录制到EVS中的表演。只要EVS记录的时间码相匹配,即LTC 1也进入了EVS,那么你就可以从EVS进行回放,它的时间码将触发CuePilot进行跟踪。在CuePilot中关闭LTC 1的同步,并打开LTC 2的同步,(EVS的LTC将需要插入LTC 2)。然后,当你播放EVS录制的表演时,CuePilot将跟随。你可以停止并调整Cue,然后再去录制另一个节目。 

The new CuePilot S6 Studio Server, coming soon, has a built in recorder, that eliminates the need for EVS. It will record it’s own rehearsal, and add the media to the Timeline in sync, for quick review.

新的CuePilot S6演播室服务器即将推出,它有一个内置的录机,不需要使用EVS。它可以录制自己的排练,并将媒体同步添加到时间轴上,以便快速回顾。

 

Apply Offsets Manually

Perhaps there is no pre-determined start Timecode of each Act, where Act 1 is 01:00:00:00 and Act 2 is 02:00:00:00 as described above. During rehearsals it is possible to manually start the CuePilot playback in time with the music, and then jog/shuttle on the playback, to get the CuePilot in time with the playback track, then set the Offset.

也不是每一个表演都有提起定好的时码,就像上面描述的那样,表演01的起始时间码是01:00:00:00表演02的起始时间码是02:00:00:00彩排期间,可以及时地根据音乐手动调整cuepilot的播放起始位置,然后调节播放,就能让cuepilot与播放轨同步,设置一下偏移值。

After being counted in and both the audio department and CuePilot hit play at the same time, you will be roughly in sync. To get it even closer, use the jog/shuttle feature, and click and drag the control forwards to speed up, or backwards to slow down, until you are in sync. In the screenshot below the playback speed is 1.2x, (as shown bottom right) as the CuePilot was slightly behind the audio as needs to speed up to get in sync.

一起倒数之后,cuepilot和音频部门同时按下播放键,能够粗略的同步。要想更加精确,还需要用jog/shuttle功能,点击拖动来控制速度的快慢,直到同步。在下面的截图中,播放速度是1.2倍,cuepilot的速度比音频慢了一点点,需要加速来同步。

 

Once they are playing in sync, let go of the shuttle, the Timeline will continue to play back. Select which LTC to follow, i.e. LTC 1, and then the jog/shuttle control will change into a ‘Set Offset’ button. Click to set the offset to the current difference between the LTC & CuePilot.

一旦播放同步好了,离开shuttle,时间线也会继续播放。选择一个要同步的时间码,比如说是LTC 1,然后通过jog/shuttle控制,能够设定偏移值。单击以将偏移设置为LTC和CUEPILIT之间的当前差值。

 

 

After the Offset is set, the chain icon will be displayed as well as the Offset. You can still continue to tweak the Offset using the left/right buttons to adjust frame by frame as necessary. 

 设定好偏移值,将会现实锁定图标和偏移。如果有需要,还可以用左/右键来一帧一帧地调整。

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