Logo Logo
/// 
Ton normalisieren, Aspect ratio patchen ohne Re-Encoding

Sound normalization, aspect ratio patch without re-encoding



Frage von vs:
Oktober 2010

Hi,

I have several thousand files with the same problem: The audio peak level is much different, just like the dynamic range. Additionally, all videos a 4:3 frame (letterboxed or full frame) have, however, flagged some of the 4:3 letterbox files incorrectly with 16:9.

DVDPatcher is out. You can click several thousand individual files and patch does not work.

Now I was so proud to be able to everything abfrühstücken the following workflow:

File normall.bat
[Code: 1:86940299 d9]
@ Echo off
for%% a in (*. mpg) do%% normalize a
[/ Code: 1:86940299 d9]

File normalize.bat (called the normall)
[Code: 1:86940299 d9]
@ Echo off

------------- Echo File: "% 1"

Echo ------------- Step 1: Aspect Ratio
c: \ standard test \ mpgtx.exe-s-A2 "% 1"-b chunk0

Echo ------------- Step 2: Demultiplexing
c: \ standard test \ ffmpeg-vcodec copy-i chunk0.mpg-f mpeg2video "temp \ chunk0.m2v"-acodec copy-f mp2 "temp \ chunk0.mp2"

Echo ------------- Step 3: Dynamic compression and normalization
c: \ standard test \ BeSweet.exe-core (-input "temp \ chunk0.mp2"-output "temp \ chunk0norm.mp2"), azide (-n1-c normal-L-3db - maximize)-ota (- g max)-boost (/ b2 = 5) 2lame (-s 48-b 224-ms)

Echo ------------- Step 4: Re-multiplex set, aspect ratio:
c: \ standard test \ ffmpeg-i "temp \ chunk0.m2v"-i "temp \ chunk0norm.mp2"-acodec copy-vcodec copy-aspect 4:3-f mpeg "output \ chunk0.mpg"

Echo ------------- Step 5: Cleanup and Rename
del chunk0.mpg
del temp \ chunk0.m2v
del temp \ chunk0.mp2
del temp \ chunk0norm.mp2
cd output
Ren chunk0.mpg "% 1"
cd ..

Echo ------------- Finished
[/ Code: 1:86940299 d9]

I know Dirty Trick and the dynamic compressor in BeSweet could be better. But in this particular application, for once sufficient.

Problem 1: For large files will lock up mpgtx the hoof, after it apparently tried to download multi-gigabyte files completely into RAM.

Problem 2: File names with special characters and spaces are not handled correctly, with no call "% 1"% 1 call even with no quotation marks.

Problem 2, I will solve well have, as I use a small C code instead of the batch as a calling instance.

Problem 1 remains. I am looking forward to all tips relating to aspect ratio patch from the command line (the switch "-aspect 4:3" in ffmpeg is ineffective in copy mode)

Best regards and thanks in advance.



Antwort von tommyb:

Problem 2:
This is normal and could only be changed when you convert the file to another character set. Perhaps you are editing the batch file in the editor? Well, there is a program which is called "String Converter".

http://www.gbordier.com/gbtools/stringconverter.htm

If the batch file to convert to OEM, work synonymous umlauts and special symbols. However, it is not really practical (not recommended anyway).

You might as synonymous with mass renamer AntRenamer all the ö and ü to rename OEUMLAUT UEUMLAUT etc.. Later you can replace it back UEUMLAUT ö - by AntRenamer.



Problem 1:
Yes, ffmpeg somehow ignore all the possible switches are noted in the doc. Even changing the field order funktiniert not easy.

Have you ever tried with the Mencoder? Which is available together with MeGUI in the package.



Another tip:
For a continuously identical volume is suitable ReplayGain. Especially for MP3, Vorbis and AAC, there are small tools with which to "patch" the replay gain value set in the file. The-playing device must support it.

Much safer but the file is to change directly. Since you anyway rekomprimierst the sound (SoX is way better in my opinion, if more complex way than synonymous BeSweet) you could just leave behind as well with "wave gain" lower or raise the volume to the average of 89dB.

WaveGain there are here (and it works really well as long as the files have a similar volume compression):

http://www.rarewares.org/others.php




Antworten zu ähnlichen Fragen:
sound problems after encoding
MPEG2 Aspect Ratio
TMPEG und Aspect Ratio einstellen
Aspect Ratio (Seitenverhältnis) nach Virtualdubmod Bearbeitung stimmt nicht
Panasonic GH5s - mit lichtstarkem, unbeweglichen Multi-Aspect Ratio Sensor
Encoding per GPU vs. CPU: nVidia Turing-Encoding auf x264-Medium-Preset Niveau?
The unscripted sound - Die Rolle des Location Sound Mixers im Reality TV
Panasonic GH5S - Hauttöne, Autofokus, maximal nutzbares ISO, Multi-Aspect-Sensor u.v.m.
VP9 multithreaded encoding
Live Encoding für Mac OS X
Lohnt sich AMD64 fü r Videobearbeitung (MPEG-Encoding)
F: Langsamste Geschwindigkeit für Hardware-MPEG-Encoding
Kein Smart Encoding mit NeroVison Express
Virtualdubmod und XVID1.1.3 -> Probleme beim 2-Pass-Encoding
Cinegy Cinescore - Gut gemachter Video Encoding Benchmark
Lohnt sich AMD64 für Videobearbeitung (MPEG-Encoding)
SAT-Karte mit Hardware oder Software-Encoding
Blackmagic DaVinci Resolve Update 15.2.4 bringt u.a. besseres H.264/H.265 Encoding
YouTube 4K Video Encoding zu langsam? Mit diesem Hack geht’s schneller …
Netflix spart 30% Daten durch Encoding-Optimierungen und VP9 Codec
Blackmagic Design: Atem Mini Pro Switcher mit integriertem H.264-Encoding für Live-Streaming
VPX Neuer Patch
wieder ein patch
Patch für VPX 11
Patch VPX (Akt.Ver.)
Neuer Patch VPX 16.0.2.301

















weitere Themen:
Spezialthemen


16:9
AI
ARD
AVCHD
AVI
Adobe After Effects
Adobe Premiere Pro
After effects
Apple Final Cut Pro
Audio
Avid
Avid Media Composer
Cam
Camcorder
Camera
Canon
Capture
Capturing
Clip
EOS
Editing
Effect
Error
Export
File
Files
Film
Final Cut
Format
Formate
HDR
Import
JVC
KI
Layer
Light
MAGIX video deLuxe
Magix
Microphone
Monitor
Movie
PC
Panasonic
Pinnacle
Pinnacle Studio
Player
Premiere
RAM
RED
Recording
Red
Software
Sony
Sound
Studio
TV
Tape
Video
Videos