Canon C100 mark ii audio quality and 25P/PF25 at DVinfo.net

Go Back   DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon Cinema EOS Camera Systems

Canon Cinema EOS Camera Systems
For all Canon Cinema EOS models: C700 / C300 Mk. II / C200 / C100 Mk II and EF / PL lenses.

Reply
 
Thread Tools Search this Thread
Old June 23rd, 2017, 03:49 PM   #1
Major Player
 
Join Date: May 2007
Location: Medellin, Colombia
Posts: 203
Canon C100 mark ii audio quality and 25P/PF25

Hi! I am shooting a project on the Canon C100 mark ii and it that needs to be shot in 25fps but I see that true 25fps is only available in the MP4 format, not in AVCHD. In MP4 it is not called "25P" but rather "PF25", which is "25P progressive, recorded as 50i" according to the manual.

However, in MP4 the sound quality is "only" AAC, whereas in AVCHD you will get Linear PCM quality (which is supposedly much better).

This raises two questions:

- Is it easy to convert Canon's "25PF" to "true 25P" in post?
- Is the AAC sound quality workable? Or does it mess up as soon as somebody wants to filter it a bit in post?

I already did a sound test but could not hear any audible difference. Did not do any post on it though.
Urban Skargren is offline   Reply With Quote
Old June 25th, 2017, 04:54 AM   #2
Major Player
 
Join Date: Jun 2008
Location: Sutton, Australia
Posts: 347
Re: Canon C100 mark ii audio quality and 25P/PF25

No response? OK. 25PsF captures a frame at the same time and stores the odd lines in one field and the even lines in the other. It seemed to work pretty well in the DV days, never recall any trouble with an XL2. But with 1080, it all turned to s**t. Maybe because I mainly edited in Vegas. Any sort of post caused all kinds of problems with jaggies, field and cadence errors.
NLE's tend to interpret PF footage as i. You should just be able to tell your NLE to treat the PF footage as P, no need for further conversion, but it didn't work that way for me. Workaround was to deinterlace every clip. You shouldn't have to bother doing that and maybe you won't have to, maybe experiment. I just wish Canon would drop PF. My experience might be unusual and I hope some others will chip in and maybe tell you different.
I've never been too fussed about whether camera captured sound was AAC or LPCM, so can't help with that.
Rainer Listing is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Adorama
(800) 223-2500
New York, NY

B&H Photo Video
(866) 521-7381
New York, NY

Texas Media Systems
(512) 440-1400
Austin, TX

Precision Camera
(800) 677-1023
Austin, TX

VideoGuys
(800) 323-2325
Mineola, NY

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Canon EOS / MXF / AVCHD / HDV / DV Camera Systems > Canon Cinema EOS Camera Systems

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 07:11 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2018 The Digital Video Information Network