Hello Jerry
thank you for the answer.
My sequenze settings are
video:
frame size – 720×576
aspect ratio – CCIR 601/dv pal (5:4)
pixel aspect ratio – pal – ccir (720×576) anamorf on
field dominance – upper odd
editing timebase – 25
quicktime video settings – mpeg imx 525/50
audio:
rate 48khz
depth 16bit
config – channel gouped
The clip that I work with are Xdcam files MPEG IMX 525/50 interlaced, 25 frame, upper field.
The audio of the clip is the same of the sequence.
The black frame and the accoustic signal like something do a wrong contact is generated not only when I export but also when I am editing.
I render the project but I never do a mix down so i can start from here.
In my project I also use video imported by beta with the same settings of the xdcam clip.
The beta is connected in compontent and everything works well exept this small problem