Twixtor: Matching Frame Rate to Soundtrack
Twixtor is a new plug-in that is compatible with almost any image software such as Adobe Premiere Pro, Adobe Creative Suite, Apple Shake, Apple Final Cut Pro and Autodesk Systems. Twixtor improves image quality and it also allows users to modify sounds. You can remove an outdoor or indoor sound caught on camera and replace it with a soundtrack. This can be done by matching frame rates to soundtracks.
Step 1-Open a Twixtor Compatible Software
Choose the software compatible with Twixtor and open it. You can use Adobe After Effects. Once you have opened the program, launch your project. You can select to play the part you want to modify. You can see that Twixtor allows you to speed up the frame rate or slow it down.
Step 2-Animate the Frame Rate
Use Twixtor's features to animate the frame number in the Alpha control and synch the video to the audio track-in this case, the soundtrack you want to play. You can take a look at the source footage and turn on the sound. This way you can hear and mark certain frames that you wish to animate. Write down or number the frames. After that, take a look at the audio file you wish to modify. You must make each frame correspond to each lyric from your soundtrack.
Step 3-Synchronize the Frame with the Soundtrack
You will need to turn off full view resolution. Change the Display as well. You can do that by clicking the display box in your left Twixtor menu. Turn off motion vectors. This will allow Twixtor to render much faster when you are animating the frame numbers. Motion vectors will be turned back on when you will render the final output. You will need the Display and Source mode. These will help you match the frame rates with the lyrics. You can now mark each sound on the source and the same on the audio. Remember the frame number from the original audio, and then place it to Twixtor with the frame you wish to modify. This will make one frame overlap the other. The original audio sound will be replaced with the new soundtrack piece.
Step 4-Quick Check-out on Results
Do a quick check out on the part you managed to match the frame rate to soundtrack. Do a Ram preview and click the arrow key on the right menu. If you are satisfied with the results on that part, proceed with the next frames just as you did at Step 3.
Step 5-Final output
After you have finished matching all frame rates to soundtrack, turn back on Motion Vectors. Now you can turn back on Full resolution and change the display to Twixtored Output. Take a look at the final result.
As you can see, your frame rates match the soundtrack. This is how you Lip-synch audio using Twixtor.