Is there a quality loss going from AVI to MOV?

I'm using QT Pro to open an .avi file so that I can trim off a little bit from the end of the video. When I do that and then go to save the file, I can only save it as a .mov file. That doesn't bother me so long as there's no quality loss. Can anyone confirm this?

one man's long is another mans....
can you do an experiment for us. Duplicate the file and count how long it takes and compare it to how long it takes to export.

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Hi to All, My wife still has ios 6 on her ipad (she likes the look). I will do the 7.1 upgrade when it is released. Should there be any issues going from 6 directly to 7.1? Thanks!

Hi to All, My wife still has ios 6 on her ipad (she likes the look). I will do the 7.1 upgrade when it is released. Should there be any issues going from 6 directly to 7.1? Thanks!

There shouldn't be. I went from iOS5.whatever to iOS6.1 with no issues.
Just make sure to back everything up before you do it, just in case all doesn't go as planned.
I always do mine the old fashioned way, download the full OS via iTunes so if you've already got it linked to a computer and been using iTunes to do updates/syncing that's how I'd suggest you do it.

Problems losing quality when going from develop module to library module ?? anyone have a fix

Problems losing quality when going to library module from develop module. Sharpness and color quality decrease

This is normal. There will be a difference as you are comparing Library Previews with the image in Develop which accesses the original file, although the difference is usually slight. Real results need to be judged from exporting after selecting the output sharpening e.g. for glossy paper, if printing or screen sharpening for web images or emailing.
The idea with sharpening is to apply capture sharpening so that the image in Develop looks just sharp but not over sharp. Lightroom then uses the correct algorithm for output sharpening based upon image size and quality settings etc.

Capturing images from avi or mov in QT

What's out there to capture single images in jpeg format for an avi or mov file that I can play through qt pro ?
thanks

What's out there to capture single images in jpeg format for an avi or mov file that I can play through qt pro ?
Not sure if you are referring to a single JPEG image (as for a poster image) here or a JPEG image sequence.
In the former case, you can use QT 7 Pro "Movie to Picture" option to export a single frame to a PCT image file (with or without compression) which, if double-clicked will then open in Preview and allowing you to re-save the image in several image formats including JPEG. If you want to go directly to a JPEG image and have the free MPEG Streamclip application installed, use it.
In the latter case, use the QT 7 Pro "Movie to Image Sequence" export option to save a sequence of JPEG images to folder using the "Options" palette set the image frequency.

DVD quality after going from DV to MPEG4

I have been frustrated over the loss of clarity when I use iMovie for capturing movies from my video camera. Has anyone else had the problem: I capture the video (from DV). The video looks sharp and clear on iMovie. When I save the movie to an external hard drive, I guess the format automatically changes to MPEG4 (?). (I am trying to store family movies on one large external hard drive) Then, when I want to burn the movie, using iDVD, I follow the instructions, import the movie, set it up the way I want it in the chapters, etc., then burn it. (I choose professional quality for preference) When I view the DVD later, on several different DVD players, the quality of the video is always hazy and off. Not to the point of losing the picture, but there is definitely a significant loss of clarity. I got the Apple computer because everyone said it was a superior video tool. I am very disappointed at this point, but wonder if anyone has a suggestion about my process and, perhaps, I am doing something wrong. Any help would be greatly appreciated. Thanks.

The way i usually do it is capture everything DV via Firewire, since you gain nothing by capturing uncompressed (because it's already compressed on the tape). Now I usually edit and colour correct in DV to keep the real time capabilities and everything that is done in Combustion (or any other FX, compositing or graphics app) is saved as uncompressed. Now when everything is finished I duplicate the sequence and switch it to uncompressed (or photo-jpg at 75% which is good enough if you work with DV footage), render and export as Quicktime movie. That way your footage won't get recompressed to DV. You can throw a chroma smoothing filter on the clips, just make sure it's first in the list of filters. This only makes sense if you use titles, vector graphics or loads of filters.

What is the video quality loss going Mac to PC vs Mac to Mac?

Here's the deal, my wife is in the hospital and forced to miss her daughters wedding. I'm trying to sort out an iChat from Louisiana to Texas so she can watch the wedding live and ideally let her daughter see her mom during the ceremony. I've not been able to establish an ichat link into the hospital due to the 'does not reply' demon. So I know its a port issue but this huge hospital is PC only, totally mac ignorant but super willing to put a hot shot PC in my wifes room. My question is what am I giving up by not going mac to mac and giving in on a PC at the receiving end? Are the benefits of the h264 codec only available on the mac to mac solution? Will the video received on the PC be smooth or choppy? What about in a full screen mode? (I guess AIM Trillion is the only option for that)
I'll be transmitting using a G4 Powerbook, 10.4.6, 256mgb ram. iChat 3. I'll be shooting with a digital video camera with firewire output. I've tested that, it all works fine in recent chats with other macs. I'll be sending over Earthlink DSL line, 256kbps up/3mgbs download. The Hospitals bandwidth is T-1 huge so not a problem. I'm just afraid I'm not going to get them to sort out the issues for a mac and will have to give in to a PC.
Appreciate your thoughts. j
G5 PowerPC Mac OS X (10.4.6) 1.6 GHz

Hi octoguy,
iChat makes hardware and connection speed checks as it starts up.
This gives you the framerate and bit rate duirng a call.
Lets say that your processor gives your iChat 15 fps
This will be the rate that you will then see to a another Mac.
The same computer is likely to get 10 frames per sec to a PC.
This is some part due to the PC putting a fair amout of effort into producing a clear detailed pic.
On some PCs this setting for the video pic is so high that the audio will drop out completely.
The cure is to bring the PC preview to the front (tabs)
Then click on the small icon that appears to the right and adjusting the slider that appears to the left.
This will incease the frame rate and bit rate from the PC. It makes the video look smoother although the actual quality has gone down (you may not be able to judge this quality difference by eye)
As general rule you will get about 2/3rds of the normal Mac to Mac framerate shown in the Connection Doctor. It also seems to take about 50% more Connection speed to get the same quality video.
So Mac to Mac min is 100Kbps where as Mac to PC will need about 150kbps.
The quality drop from 15 frames a sec to 10 frames a sec does make the video generally more blocky but does also depend a fair bit on the processor power of the PC and the camera used.
I know that sounds a little vague but there are really many variables that can be a factor.
11:23 PM Monday; April 24, 2006

Massive text quality loss exporting from CS6

I have tried every single render setting from hd presets, uncompressed, h.264 and all different bit rates and max render settings and I keep getting the same result... Low quality text.
The project is dv
All I want is the video too look identical to the one in my preview window.
The text was created in premiere and I did not download it from the internet.
Does anybody have any suggestions?
I have never encoutered anything like this before and will have to go back to Final Cut if this is unsolvable
please help!

If your project is DV then export to a format with SD settings. Upscaling DV to HD is only making it worse.
What is your source exactly and what is your sequence settings.

Going from Flash to .mov to MP4

Hey everyone. I'm using Flash CS4 on a Mac and I'm wanting to get my Flash file into an MP4 format for Articulate Presenter. What I've tried doing is exporting my Flash file as a .mov file and then taking that file into iMovie 8 and converting it to MP4. Works great except... my MP4 is bigger than my original swf. I was told that MP4s are smaller than swfs, but not in this case. I'm not doing any compressing when I'm making my .mov file in Flash. If I compress at all, the quality is horrible. So I do 'None' compression at highest settings. That's the only way I can get a good-quality video. But still, I would think that making that into a MP4 should be smaller than a swf file.
Can anyone help me, here, please? I'd really appreciate it. How am I supposed to get my Flash file to an MP4 H.264?

Does anybody have some suggestions?

Doubts about quality loss from analog to DV.

Hi, friends. Can anyone help me clarify this doubts, please?
From analog media to miniDV tape to iMovie DV file, is there any quality loss? If the answer is yes, in which step does the loss happen? In the analog to miniDV or in the miniDV to iMovie DV file or in both steps?
Resulting quality of imported analog footage to iMovie DV file is the same using either the above technique or the pass through technique that skips DV tape use (8mm camcorder media send to Mac through miniDV recorer)?
Thanks in advance.

Hi onClick,
inside your mini-DV camcorder, some chips do the converting "on the fly" - from that moment, you realize no loss, because then, everything is digital, 000 and 111.- so, you shouldn't realize any difference by taping or pass-thru.
in technical terms, DV has a much better quality then analog, but, for sure, any conversion is lossy. DV has a high compression rate, compared to what is done in a professional studio . but for the normal John Doe as us, you will not recognize any loss in quality after converting.
besides: never judge the quality of the pic on your Mac's screen! computers and tv-sets have very different techniques in displaying video! you can just judge pic quality after playout on tape/tv....-

Does improving bit rate improve quality when importing from a lossy file?

Okay, if that question made no sense, here's an example:
I have a 5 Megabyte file encoded as an MP3 at 192 kbps.
I like to keep all my files in one format though, and currently my preferred format is AAC.
Would it make sense to convert it to 320 kbps AAC?
I get the feeling that since the data for that bitrate is gone (since MP3 is lossy)
it wouldn't make any sense trying to improve the bitrate. All I would get is a large file
that sounds the same as 192 kbps AAC.
Is that right?

Yes and No.
You are right that converting to 320kpbs AAC will not increase the quality since the data is already gone.
However for the next but you are slightly wrong.
What you will get is a large file that sounds the same as 192kbps MP3, which is not as good as 192kbps AAC (AAC is better quality than MP3 at the same bitrate).
Also, there is always a loss in quality when going from one lossy format to another.
If it's possible to go and re-encode the original source material at a higher bit-rate AAC I would definately do that, but if all you have is the 192kpbs MP3, then just leave them as they are and don't worry about having different formats.

Quality loss in Imovie after finalizing

Having read alot about codecs and converting i'm still not able to figure out why there's quality loss after finalizing my project in Imovie. In the original .MTS files I can see, when played with the VLC player there's a little noise in the grey and dark area's but it's more then acceptable. After converting and finalizing it's a horror to watch. The weird thing is that the converted .MTS into .MOV files look better when played in Miro then in Quicktime.
What advice can you give me on reducing the noise and making sure the movie looks best when played from a DVD on flatscreen? I want to do the editing in the higest possible quality because in the future I want to burn to BluRay aswell (I know that full HD is only possible when you burn to BluRay)
Here are the details:
1. I imported the material, filmed in 25P (so I don't have to interlace) directly from my canon HF200 into Imovie. I can choose between 960X540 or original size.
2. I choose original size and receive a warning that this can cause a negative effect on the quality. So maybe the problem is caused by my old and small laptop, see specifications underneath my questions.
3. The converted mov. files in Imovie appear to have more noise then the original and after finalizing to HD 1080p the noise in the grey and black areas is almost unwatchable.
Is there anything I can do besides buy a new laptop?
Thank you for your help!
Specs Mac
Modelnaam:          MacBook
Modelaanduiding:          MacBook4,1
Processornaam:          Intel Core 2 Duo
Processorsnelheid:          2,1 GHz
Aantal processors:          1
Totaal aantal cores:          2
L2-cache:          3 MB
Geheugen:          4 GB
Bussnelheid:          800 MHz
Opstart-ROM-versie:          MB41.00C1.B00
SMC-versie (systeem):          1.31f1
Intel GMA X3100:
Chipsetmodel:          GMA X3100
Type:          GPU
Bus:          Ingebouwd
VRAM (totaal):          144 MB
Fabrikant:          Intel (0x8086)
Apparaatcode:          0x2a02
Revisiecode:          0x0003
Beeldschermen:
Kleuren-LCD:
Resolutie:          1280 x 800
Pixeldiepte:          32-bits kleur (ARGB8888)
Hoofdbeeldscherm:          Ja
Synchrone weergave:          Uit
Online:          Ja
Ingebouwd:          Ja

No worries Still your remark about the external drive is someting to take in to account, i have mine hooked on most of the time.

HDV or AVCHD editing = processor utilization = import/exp. quality loss

Hello,
my question about processability of HDV/AVCHD Movies with iMovie. I have learned that HDV and AVCHD files are transfered in the AIC format. That should mean editig a movie would be always in the AIC format and I assume no difference whether I come from HDV or AVCHD format it should be similar demanding to the core2duo processor except initial transcoding from H264 to AIC - is this right?. When I save a movie out of iMovie do I save it in AIC or in HDV/AVCHD? Is there a quality loss transferring a movie back and forth from/to HDV/AVCHD to AIC since HDV employs mpeg2 and AVCHD employs H264 which are both compressed formats? Practically does this also mean that AIC can work as a bridge to between both formats?
Thanks for your replies to my several questions!

I have cut/pasted this from another thread where I posted it following a question from a Canon HV20 owner. The info applies to all HDV and AVCHD cams though. Might help you decide.
This comes from www.camcorderinfo.com
Compression (7.0)
The Canon HV20 (Review, Specs, Recent News, $903) uses HDV compression, a very efficient MPEG-2 codec with a fixed data rate of 25Mbps, identical to the data rate of standard definition DV compression. HDV excels in capturing stunningly high-resolution video, but it is inferior to DV in terms of rendering motion realistically, due to its dependence on interframe compression. This means that at 1080i, only one in fifteen frames is a full-frame picture, while the intervening frames are compressed in relation to each full I frame. Interframe compression is much more efficient than intraframe compression, and allows HDV to squeeze a full 1920 x 1080 picture into a 25Mbps stream, recordable to inexpensive MiniDV tapes. DV uses intraframe compression, so each frame is a fully independent picture, allowing much better motion capture. DV also uses a superior 4:1:1 color space while HDV encodes via a truncated 4:2:0 color space.
The inherent weaknesses of HDV have led many networks to deem the format sub-standard for broadcast, but it is still the best high definition format available on the consumer camcorder market. Most consumers find the stunning resolution of HDV trumps the superior motion handling of DV. A professionally lit HDV interview (or any HDV shot without too much detail or motion) can look nearly as good as footage shot in a professional HD format on a $20,000 camera. AVCHD, a new HD format that uses H.264 compression was introduced in 2006 and compresses video even more aggressively than HDV. Our tests of Canon's UX1 (Review, Specs, Recent News, $729.95) and SR1 (Review, Specs, Recent News, $1119.99) last fall show that while AVCHD video is very sharp, it suffers from grain and artifacts much more than HDV compression. The wildcard in the consumer high definition arena is a new MPEG-2 format developed by JVC, the MPEG Transfer Stream codec, which appears for the first time in the Everio HD7 (Review, Specs, Recent News, $1529). MPEG Transport Stream compresses video at up to 30Mbps, and may rival or even outclass HDV compression.
Media (6.0)
Like other HDV camcorders, the Canon HV20 records to MiniDV cassettes, the same inexpensive and widely available format used by standard definition DV camcorders. MiniDV cassettes have a run time of 60 minutes in SP mode, but can hold up to 90 minutes of more compressed LP video. Unlike the DVD, memory card, and HDD formats, MiniDV tapes are linear media so moving clips to a PC from tape is a real-time process. For anyone serious about the quality of his or her video, HDV recorded to MiniDV cassette remains the best consumer HD option available. To date, consumer non-linear video formats do not support the highest-quality video compression codices for high definition (HDV) and standard definition (DV).

HT4623 The software update option is not on my phone. It just goes from "about" to "usage". I have an iPhone 3G. Every time I try to update it on iTunes, nothing changes. I have version 4.2.1, no matter what I do. Any suggestions?

I have an iPhone 3G, and cannot update my iOS. In the General tab, "Upadate Software" is not even there. It just goes from "About" to "Usage". When I try to update on iTunes, it always remains the same. iOS 4.2.1. Any suggestions? (My PC uses Windows XP). Also, my WiFi has completely quit working. Works fine on the other iPhones in the house, as well as the XBox 360, so I am sure it's my phone. I tried everything I could think of, including restoring the iphone to factory settings & then updating, but no luck. Thank you! for any help you can give! I plan to get an iPhone 5, but wasn't ready to do it quite yet. Hopefully my phone can be rescued until I'm ready.

That is the highest you will be able to go with 3g. You need 3gs or 4 to go any higher (multi processors and more memory needed). Version 4.2.1 marks the end of your updates for that device.

Going from Pages to EPUB using InDesign?

Is there a guide for going from a Pages document to EPUB using InDesign? The target is a book that is over 105K words for 425 pages.
I am an absolute beginner with InDesign and I was hoping to more finely control the outcome of EPUB generation by using InDesign rather than outputting from Pages using Export to EPUB. Unfortunately, ID isn't quite as intuitive as I had hoped it would be and I've run up against the wall.
Do I load each chapter as a separate document and then collect them as a book file? Or can the book be loaded as one document? I've been trying as one document, but I can't it to appear in the main editing window. (It shows up fine in the story editing, but that gets tedious very quickly.)
Last, while ID creates EPUB files, can it generate a MOBI or AZW file for the Amazon Kindle? I found no references for in concerning ID in the documentation, but thought I'd ask anyway.

Thanks, Steve!
I've already been hand-building the CSS & EPUB files. I was just hoping that InDesign would make it easier. Clearly, that's not the case.
Apple's Pages does a very good job generating an EPUB which only requires a minimal amount of tweaking to the CSS to give it a final polish and further adjustments for e-readers other than an iOS device. Generating the MOBI/AZW for Kindle requires a bunch of jumping through hoops to prepare, which was what I was hoping to avoid.
A few days to release, I have plenty of time get get the ebooks ready.
A good heads up for any competent programmers out there—of which I am not—there is a huge market of self-publishing authors in need of a program that can take a RTF, Word or Pages formatted document and smoothly turn it into an EPUB or AZW file.

AVI TO MOV = blur?

Hi!
I used Qt pro 6.5.2 to convert some Avi files (1024x768 pixels) to Mov.files. the result is SO blurred! i have used the "best" settings all over... Then burned them in IDvd 5.0.1.
The Avi files looks just fine played in Qt or Vlc - not blurred.
Toggen

Toggen,
AVI and MOV files are just video "Containers". The video and audio inside the container can be in many many formats/compression schemes.
So telling us you converted from AVI to MOV is kinda like telling me you put your beer in a plastic mug or a glass mug, but what I really need to know is what kind of beer it was, and how you changed the beer before moving it to the new mug......."best" settings all over doesn't tell us much.
Do "Show Movie Info" after opening the AVI and MOV in QT. That will give your the video formats/compression schemes you used.
John
PS.....Yes I do have an interest in malted barley & hop beverages......and I prefer to use glass pints

Is there a quality loss going from AVI to MOV?

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