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Al rallentatore... : Davinci Resolve 14/15

Al rallentatore...

Area dedicata all’utilizzo del software Davinci Resolve 14/15

Al rallentatore...

Messaggioda Il Congre » 21/08/2018, 14:02

Buongiorno a tutti,

Come mai in fase di editing se riproduco il video va tutto al rallentatore? Anche l'audio non va, tutto a singhiozzi.

Aiuto....

Il mio pc é questo con in più altri 8 gb ram e hd sostituito con sdd Samsung evo 500 gb
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Re: Al rallentatore...

Messaggioda uuderzo » 01/09/2018, 8:58

Se il video va a rallentatore molto probabilmente hai inserito un filmato ad alti FPS (tipo 60) in una timeline con bassi FPS (tipo 24), per cui a meno di non dire a Resolve che vuoi alterare la velocità del video, lui ti mostra i fotogrammi del tuo video alla velocità della tua timeline, e cioè più lento.
Puoi alterare la velocità della clip selezionandola e facendo click destro del mouse su di essa, c'è un comando tipo "change clip speed" o simile. questo causerà la perdita di fotogrammi del tuo video in quanto resolve per mostrartelo alla velocità corretta dovrà scartare il 50% dei fotogrammi. Puoi anche scegliere di attivare l'interpolazione dei fotogrammi con algoritmo optical flow, ma per le velocizzazioni non ha quel grande effetto e ti rallenta tutto l'editing.

Se poi l'audio va a singhizzo probabimente la tua configurazione hardware non supporta l'editing in tempo reale con Resolve. Resolve è molto ottimizzato come performance ma è orientato ad operazioni di color grading che lo rendono a priori più esoso in richieste rispetto a Première o altri software.
Per risolvere il problema Puoi craeare i video ottimizzati, sempre click di destro sul clip nella timeline.
Può anche essere che il video vada a scatti per via del rallentamento degli FPS. Fai un po' di esperimenti.

Vedo che il tuo PC ha una Radeon. Non so se Resolve digerisca bene schede non CUDA (NVidia). Io lo uso con una scrausissima Quadro K2100 con 2Gb di RAM e riesco a montare il 4K quasi in tempo reale (se non ci metto grading pesanti).

Ciao.
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