Video Voiceover & Lip Sync vs TestGenAVSync

Lip sync, dub or just add any sound or voice to your favorite videos! Our voiceover gives you endless opportunities to add any sound to the video of your choice, so you can sing along your favorite singers, create a completely new storyline to an existing video or just let your imagination run wild! Add the video to your liking and record your own voice over it. It can be a song, an existing video, film, music video, anything you like! Just mute the original video and record your own over. Perfect for your profiles and social networks, ideal for amusement but can also be a powerful tool if you want to express your creativity, show that you are a better actor or singer or add your own note to a video. You can do If you ever thought you could be a better narrator than the one on TV, here's your chance to show everyone your skills. Who knows, maybe they will even hire you to become their new voice of that popular show!

TestGen AV Sync turns an iPhone or iPad into a portable video and audio test-signal source, built on the same pattern-generation engine Drastic Technologies ships in its broadcast products. Point a camera at it, feed it into a capture card, hold it in frame on set, or use it to line up a monitor. The signal is generated on the device in real time — no files, no streaming, no network. WHAT IT DOES • 270 broadcast test patterns — SMPTE and EBU colour bars, PLUGE, luma and chroma ramps, multiburst, zone plates, convergence circles, grids, pixel-resolution charts, gamma strips, HDR clipping and filter charts, and much more. • Sample-accurate A/V sync markers — a phase-coded audio pulse aligned to the video frame, so you can measure lip-sync error end to end through any signal chain. • Frame-accurate timecode burn-in — HH:MM:SS:FF with drop-frame support, date stamp, or UTC. • QR frame data — every frame can carry its frame index, UTC timestamp, frame rate, pattern ID and audio phase as a machine-readable QR code, so an automated test rig can read the delay straight off a recording. • Flash cues — full-screen or edge flashes at a chosen interval for latency and shutter testing. • Multi-pattern output — show two to five different patterns at once in a split-screen layout. • Frame rates from 24 to 60 fps, including 29.97 and 59.94 with correct drop-frame timecode. • HDR output in HLG and PQ, plus Display P3 and Rec.2020 wide-gamut colour on supported devices, with an optional true 16-bit float rendering path for band-free gradients. • Presets — save a complete configuration, and export or import it as JSON to share a setup with the rest of the crew. WHO IT IS FOR Camera operators, DITs, broadcast and post engineers, AV installers, live-event and streaming technicians, QC departments, and anyone who needs a known-good reference signal without carrying a rack-mount generator. FREE AND PRO The free version generates SMPTE BT.709 75% and 100% colour bars, ARIB STD-B28 HD bars, SMPTE RP 219 bars, SMPTE 303M, a 7-step luma staircase, a grid-and-dots chart, a Rec.709 white window, a zone plate, plus full white and full black at up to 30 fps in Rec.709, with all three A/V sync audio signals and full preset support — enough to check a signal path or line up a monitor. TestGen Pro is a single one-time In-App Purchase — not a subscription — that unlocks the remaining 259 test patterns, multi-pattern layouts, the timecode, QR and flash-cue overlays, 50/59.94/60 fps, HDR (HLG and PQ) and wide-gamut output. ABOUT DRASTIC TECHNOLOGIES Drastic Technologies has built video capture, playback, conversion and analysis software for the broadcast and post-production industry since 1995. Our tools are used in television facilities, post houses and outside-broadcast trucks worldwide.