-
Is it possible to change the bit and sample rate in an audio mix, once the mix sequence is already created?
I post-produciton sound mixer made a sound mix for me of a short film. I asked for him to deliver it in 24bit/48khz in a wave file, since that is the standard format I was told to ask for, as a filmmaker.
However, he says that it’s too late cause he already created the file, when he first started in 16bit/44khz. Is it not possible to change it decide on the bit and khz after the final mix is done, and it’s time to deliver, or does that have to be decided beforehand, and there is no going back now?
-
11 Replies
-
You can convert bit depth and sample rate in MC no problem. Transcode or Mixdown.
But you have lost quality and up converting won’t restore.Pat Horridge
Broadcast & Post Consultant, Trainer, Avid Certified Instructor
Free online Tutorials at VET digital media academy online https://vimeo.com/channels/752951
pat@vet.co.uk -
Okay thanks. I was told by some others that no one will notice such a small quality difference, but will they?
Also, what if instead of converting, what if the composer just went back to his original timeline in the music program, and took all the music and copied it, and pasted it into a new 24bit/48khz time? Since the music was created in his program from scratch, will copying it pasting it into a new timeline, recreate it in 24fps/48 khz therefore?
-
16 bit 44.1khzis CD quality
So it will probably be OK.
But yes most audio post software allows you to change the bit depth and sample rate.Pat Horridge
Broadcast & Post Consultant, Trainer, Avid Certified Instructor
Free online Tutorials at VET digital media academy online https://vimeo.com/channels/752951
pat@vet.co.uk -
Okay thanks, but can you change it in the program before exporting, and retain better quality? Like let’s say you create tune with a virtual instrument from scratch. Can you tell the program later what bit and khz you want it to be, or does the program decide that for you and there is no turning back in the sequence before you have even created it?
-
Without knowing the software and his workflow impossible to say.
But up converting before export gains nothing.Pat Horridge
Broadcast & Post Consultant, Trainer, Avid Certified Instructor
Free online Tutorials at VET digital media academy online https://vimeo.com/channels/752951
pat@vet.co.uk -
He uses logic pro x. He talked to me more about why the sync is off.
The program imported the movie and converted the 23.976 movie, into 25 fps it turns out. The program did this by default he said.
Is it possible to tell the program that you made a mistake and for it to convert back from 25 fps to 23.976 fps and the music will convert back with it, time sync wise?
-
The software shouldn’t change the frame rate and doing so will cause sync issues.
You need a new dubbing mixer. These are fundamental mistakes.Pat Horridge
Broadcast & Post Consultant, Trainer, Avid Certified Instructor
Free online Tutorials at VET digital media academy online https://vimeo.com/channels/752951
pat@vet.co.uk -
Oh okay, well according to the composer, the software changed the framerate from 23.976 to 25 fps, but he did not catch it until later it seems.
-
Hello Ryan,
Did you stipulate what frame rate you wanted?
If you did, his bad. I’d say he owes you a re-do.
Regards,
Ty Ford
Cow Audio Forum LeaderWant better production audio?: Ty Ford\’s Audio Bootcamp Field Guide
Ty Ford Blog: Ty Ford\’s Blog -
I’d say he should have asked. You never assume.
Pat Horridge
Broadcast & Post Consultant, Trainer, Avid Certified Instructor
Free online Tutorials at VET digital media academy online https://vimeo.com/channels/752951
pat@vet.co.uk
Reply to this Discussion! Login or Sign Up