How do I get more control to target bitrate setting?

[kaihin30]

As currently I am recieving jobs from some broadcast companys as my clients, many of them will have certain requirment in bitrate.

Like for a lastest job that I recieved,

Video Codec: Mpeg2

Wrapper: MXF-OP1A

Bitrate: 50Mbps

Audio Bitrates: 384kbps

Yet I guess I didn't have the control for any of these on the panel (I know for H.264 mp4. you can set a target bitrate)

May I ask if there are any way to do or any 3rd-party plugin I can look into?
Thank you very much!

[kaihin30]

I just figure out the the bitrate is already 50Mbps after export but I'll still need the audio bitrate to be limited under 384kbps.

Thank you very much!

[Carlos Ziade]

Export Settings:

Format: MXF OP1a

Preset: Custom

Video Codec: XDCAM HD 50 (4:2:2) - this is MPEG 2 at 50Mbps

When working with MXF OP1a Audio is uncompressed, you can choose 16 or 24 bit at 48000 Hz

and i found this:

24 bit, 48KHz

2,304 Kbps

288 KB

i think these settings are good to go for your required broadcast settings

[kaihin30]

I've tried 16bit sampling but the audio bitrate is still 768kbps.

[Carlos Ziade]

how about 24 bit?

[kaihin30]

24bit is even more like more than 1000kbps ._.
I was thinking like it's impossible to lower it down to 384 unless it's a compressed audio format.