Convergent Design Blog

This is some blog description about this site

Apollo AV Align - The Solution to Audio / Video Sync Problems

Apollo and Apollo Option for the Odyssey7Q and Odyssey7Q+ include a very important feature: Audio/Video Align. In Apollo Mode, AV Align corrects for when Audio is out of sync with the Video and aligns multiple cameras.

All cameras have a delay (latency) from when the light hits the sensor to when the video comes out the HD-SDI or HDMI outputs. Some cameras have a much longer delay than others. Some DSLR’s have a four-frame delay, while more professional cameras typically have a much shorter delay. These varying amounts of delay among the cameras cause a problem when switching from one camera to another.

For example: consider four cameras pointed to a fashion runway.

As the model is walking down the runway, if one switches to a camera with a longer internal delay, then the model will appear to jump back to a previous position, which is, of course, unacceptable.

Also, even if one is using four of the same camera, set up exactly the same, except that one has a wireless transmission system or audio embedder in the signal path, then this one camera’s signal will be delayed, compared to the others.

It is fairly common for all cameras not to be Genlocked. Many cameras do not even have Genlock capabilities. It is fine to have Genlocked cameras and still use AV Align. AV Align solves the problem when Genlock is not available. (Please note that for some situations, either Genlock or even Pixel-Lock, is required for the shoot, such as when shooting professional 3D.)

The beauty of the Apollo and Apollo Option is the time it saves in Post! It does not take long for the savings in Post to pay for the Apollo or Apollo Option.

  • All clips start on precisely the same frame.
  • The timecodes match precisely.
  • The Audio and Video are precisely aligned.
  • Each file has matching filenames.

Setting up AV Align is quick and easy. It takes less than 2 minutes at the start of the day,
and then can save hours in post.  To set up AV Align:

  1. First, record a short clip with a clapper or just clap your hands, in front of all four cameras.

  2. Switch to playback and touch AV Align in the top menu.

  3. Using the scrubbing tools, or Frame Advance, find the point where the clapper or your hands touch for the first camera. Then touch Align Video button.

  4. Using the Frame Advance tools, find where the audio peaks, watching the audio level meters. Then touch the Align Audio Button.

  5. Repeat steps 3 & 4 for all cameras, then touch Done.

Now all of your audio and video are aligned. Once you become familiar with AV Align, you will be able to set it up in around one minute.

If you turn off the Odyssey or Apollo, it will remain in sync when you use it again, provided you use the same camera setup. If you change your camera setup or swap cables, you should perform AV Align again. If you wish to turn AV Align off or back on, you may do so in the Setup Menu.

 

Here is a short video tutorial:

https://convergent-design.com/component/contushdvideoshare/player/apollo-tutorials/av-align-on-apollo.html?Itemid=

Here are links to the Apollo and Apollo Option for the Odyssey7Q and Odyssey7Q+:

https://convergent-design.com/apollo

https://convergent-design.com/odyssey-upgrades

Continue reading
2125 Hits

Only Apollo Can Deliver Portable Four Camera Video Assist...

 

Simultaneously record four cameras from a tablet-sized portable device. View as a quad-split and readily switch between them, even in playback.

 

Move better, setup faster and work smarter. With four HD video inputs, Apollo is a complete Video Assist system that eliminates multiple recorders, switchers and other gear on set. View four cameras simultaneously or switch between them in perfect sync during record and playback. Apollo outputs three customizable views to other monitors (Quad-Split, Camera A, and Camera B)while recording Apple ProRes. Add battery-power and wireless accessories for complete mobility. Apollo’s simple touchscreen interface lightweight compact size make Apollo the Video Assist choice on any shoot.

apollo video assist

Find Out More About Apollo

See it work on the set of USA Network’s Sirens TV Series

Continue reading
1874 Hits

When All Else Fails, Apollo Doesn't

ThingsGoWrongSometimes things go wrong.  
Most don’t like to talk about it, but smart design means planning for failures.  
Even someone else’s.

Apollo can record up to four HD video inputs simultaneously, as well as a fifth channel of a Live-Switch between the four inputs or a Quad-Split view showing them all together.  Placing all five recordings in one device is a great convenience, but it also means that Convergent Design had to design Apollo’s recording to be bulletproof.  Failure could be catastrophic and was not an option.

Continue reading
2025 Hits
feedback