Split stems after the generated track is the bed you will mix
separate_music_vocals needs a Suno taskId and audioId. Splitting a discarded generate, or splitting before picture lock, yields stems for a song you will not attach.
3 min read
Audio-only translation should wait for the master soundtrack
dub_video with translate_audio_only is a lighter language pass. It still bills against length, still runs async, and still dies if you recut the parent.
3 min read
Trim the keeper's in and out, not a take still in taste
cut_video with one KEEP range is a clean trim. Trimming a miss, or trimming before picture lock, produces a short leftover you will not ship.
3 min read
Render a slideshow as a reel only after overlay text is signed
convert_slideshow_to_video is a render pass over slides you already paid for. Converting a draft board, or converting before overlays and order are locked, makes an MP4 you will have to re-render.
3 min read
Pull frames from a locked clip, not from a miss you will overwrite
extract_video_frames returns stills from a video. Grabbing a contact sheet off a throwaway take, or extracting before picture lock, produces photos of a performance you will replace.
2 min read
Sharpen the still you will publish, not every tile in the grid
upscale_image enhances existing detail. Upscaling rejected stills, or upscaling before the board is locked, is a second generate you will throw out.
3 min read
Approve lyrics against a locked runtime, not a throwaway song
generate_lyrics returns text. generate_music then spends a track. Writing lyrics before picture lock, or scoring a miss with them, pays for words and a song the cut will not hold.
3 min read
Write Color Tags on Every Export
Players guess Rec.709 and gamma 2.2 when nclc and colr are missing, so grades shift after upload. Tag Rec.709, P3 and PQ, then inspect before you send.
8 min read
A Delivery Spec Sheet With Every Master
A signed one-pager for codec, luma range, loudness, captions, textless and checksum, so the master the client accepts is the file you send.
8 min read
Finishing Version Suffixes: Pic, Mix, Grade
A filename grammar for _pic, _mix, _grade, and _del, plus a matrix of who owns each suffix, and why final2 is not a version.
7 min read
Fold Down Surround Beds Without Losing Center
Generated music parked in 5.1 L/R starves dialogue on stereo TVs. Fold down with center protected and LFE discarded for social and web masters.
7 min read
Leave Handles on Generated Clips
Models return exact-length clips. Pad 8-12 frames on each end so dissolves, J-cuts, and limiter look-ahead do not hit hard cuts.
8 min read
Lip and SFX Sync Tolerance in Finishing
Hold lips to ±1 frame on film and ±2 on broadcast. Slip generated SFX inside that window, and regenerate only when a slip would break the rest of the scene.
9 min read
Picture Lock When Shots Can Still Regen
Define picture lock when a shot can still regenerate: a signed change-list, and which picture changes reopen grade and mix.
8 min read
Read Skin Tones on the Vectorscope
Generated faces sit off the skin-tone line. Read the vectorscope, then use hue and sat moves to unify a sequence without running a beauty pass.
8 min read
Ten-Bit Intermediates to Stop Grade Banding
8-bit timelines stripe skies after a mild S-curve. Make 10-bit 4:2:2 the house intermediate, and keep stills that prove the banding was the file.
7 min read
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