IChat video quality inherantly suffers when over wireless EVDO aircard?

I am just guessing. Is this true? Or just in our case? Our being myself and my girlfriend, who is the one with a cam. I am new to iChat but I am not receiving that 'full screen, perfect quality' image that I thought iChat was supposed to have. You see, my girlfriend has a Macbook with its own built-in camera, so I am sure that camera is up to iChat specifications. But, her internet connection is through Sprint's EVDO USB modem. For the techs here, she is using the pretty new Sierra 595U, and she gets EVDO speed where she is.
Are there any iChat options she could tweak that would give her a higher bandwith output to me? SHe is not too technically inclined to discover this herself. Thanks!

My experience with using Sprint EVDO Revision A is that, while up and down tested speeds may seem more than adequate, the quality of iChat video connections and Slingbox slinging isn't as good as with similar tested connection speeds generated via DSL or cable.
I suspect this is due to greater latency and other factors associated with EVDO, including wild fluctuations in connection speeds. I assume your friend is making EVDO Rev A connections and not EVDO Rev 0 connections, which are inadequate for decent video connections.

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IChat Video Quality Low - Stumped

Hi all,
The basics of my problem is my Ichat video quality is very low.
I have a 10mb connection and im in Tennessee, USA, the person im trying to reach has a 8mb connection and is in California, USA.
When I chat with this person my connection doctor always says im getting a 150 to 300 bit rate. The video quality seems very low to me. Which I would think is super low for such a fast connection between our computers. It never goes above 300.
I've read over many posts here on the forum and we have done the Set Quicktime to 1.5mb & Set my Ichat Video Prefs Limit to "None" and restarted, on both ends. Still limits at 300.
I've also checked the connection speeds on both ends, via pings to various places around the net & across the country and hold down a decent to good 3.5 to 8.5mbs connection.
A little system info:
My Side:
- G5 Dual 2.5GHZ
- Isight (external Camera via Firewire port)
- Airport Wireless Card
- Airport Extreme (with DHCP on to route my multi machines wirelessly on the network)
- Cable Modem - Plugs into Airport - up to 10mbs connection
- iChat 3
- OS X 10.4.8
Other side:
- Intel Imac (brand new)
- Isight (built in)
- Cable Modem direct - up to 8mbs connection
- iChat 3
- OS X 10.4.8
It seems like there is something im overlooking.
Please help as im a bit stumped on this one! :P
- Guru Kismet

I have 3 machines on the Airport network (though none of the others where being used during the testing).
I connected my Cable modem directly to my G5 via Ethernet my speeds jumped! Then I discovered it was being caused by my Airport Extreme. Which loves to knock me off the network from time to time.
In my Airport Extreme "wireless options" I changed the Multicast Rate and then clicked on "Enable interference robustness" my chat speeds jumped from 200k to 800k+. The quality of my video improved dramatically.
After further testing with just one machine and then later restoring all machines back on the Airport Network, I found that there was some sort of interference from other wireless devices around the house, even the ones downstairs.
I would suggest this for anyone having trouble with your Airport Extreme knocking you off the internet or network from time to time or if your Ichat speeds & quality are really low.
Problem solved!
Best wishes to all,
Guru Kismet

How can you keep the highest iphone 4s Video quality the same when exporting it from iMovie.

How can you keep the highest iphone 4s Video quality the same when exporting it from iMovie.

InDesign's PDF export engine does not transcode your videos, they are embedded exactly as they were in the original file. The Flash Player runtime which displays video inside PDF files may not show a perfect match to Quicktime etc. because most video playback tools aren't designed for a color-calibrated workflow, but they should be close.
The playback quality (blocking and aliasing) will be affected if the clip is not playing at 100% (screen pixels != video pixels) and in PDFs with the standard video player widget, that will only ever happen when you use 'floating window' mode. PDF pages have physical dimensions, so viewing them at "100%" does not make them match screen pixels.
If you don't mind the video clip being smaller than the media annotation in which it's playing, then use my free upgrade to the Acrobat playback widget - VideoPlayerX - which maintains 1:1 pixel scale until the page is zoomed out too far for it to fit. You can install the widget into InDesign so it's used by default when exporting.

IChat video quality better with .Mac subscriber than with AIM?

The quality of my video chats with one brother who also has a .Mac account is noticeably better than my chats with another brother, who uses iChat with an AIM account. I'm in the US, they are both in UK. All of us have almost identical iMacs. The one with the AIM account supposedly has a faster Internet connection. My question: is the video quality of iChat better if both users have .Mac accounts than if one has an AIM account?

The Screen names make no difference.
It is about a combination of Proccessor, Video card in iChat 4, internet Connection and settings and the amount of Bandwidth you get out of that connection.
As Defcom (UK) has said start with those basic Settings.
In iChat 3 and 2 the Quicktime setting when on Automatic is read as a 0 (zero) and this effectively Caps iChat.
In iChat 4 the Automatic setting is seen as 384k which is the MINIMUM for a 4 way chat.
As far as an Internet Connection goes this should be at Least 100k in both Up and Downloads.
Due to some data stream management to cut down on Peer-to-Peer file Sharing it pays to limit iChat in the Video Section Bandwidth Limit section to slip under the Radar as it were. There are two main ISP doing this Comcast and Road Runner in the States.
Verizon offer a FioS fibre service that is not that stable in speeds and jumps all over the place which is then too fast for iChat to keep up and that should use the cap in iChat Preferences as well.
8:08 PM Friday; June 20, 2008

IChat Video Quality vs. Bandwidth FAQ?

I have done some searching and have come across some video quality threads.
Most of my Video Conferencing is done between my Macbook or iMac 24 across Time Warner cable to another iMac 20. All running OSX 10.4.9.
It appears that the video quality will vary based on the upstream bandwidth availability. In my case I have 600-700kbps pretty consistently. This is pretty decent for a 1 person video conference. Not quite up to the standard I was hoping for but usable.
What is not even usable is doing a multi-person Video conference. In this case two local machines on the same wireless network and one machine across Time Warner cable (we use the same provider). When I bring the second local machine, the conference splits out properly but the video in each widow (other than my preview) is so blurry that it is completely useless.
I would be very curious as to the experience of others attempting to connect across the same service providers network. In this case we are connecting across Time Warner between Florida and Ohio. The performance should be rocking with at least 1MB upstream (I will have to check but I think I have 5MB up).
The other thing that I was wondering is if there is some way to tweak the iChat Video settings to force it into a specific video quality mode (and possible deal with some dropouts).
Sorry for the long post but I am hoping we can begin to compile information on bandwidth requirements and perfomance experienced with various service providers.
Thanks!
Jim

Thanks, I did both tweaks and the really improved the 3 way conference.
My speedtest is below and is on Bright House in Tampa. Note that the best that I achieve watching Connection doctor is in the 700 territors. I do tend to be able to deliver 20fps pretty consistently. But my bandwidth bounces around a lot. I am not a big fan of cable for quality and consistency.
[IMG]http://www.speedtest.net/result/145047165.png[/IMG]
Verizon FIOS is moving into my area and I believe they will offer much better speed than Bright House and certainly more consistency. RF is simply a nightmare to maintain.

Multi-Person iChat Video Quality

Hi,
I am using iChat with 2 other person (so a total of 3 people in the video conferencing). What we noticed is that the audio quality remains great. But as soon as the third person joins the video chat, the video quality decrease dramatically.
Any one experience this problem?
Thanks.

Thanks for the reply.
Have you set the Quicktime setting, goto sys
prefs/quicktime/streaming/streaming speed set what
you get from your ISP go no higher then 1.5mbps(dont
use automatic)
I didn't know that Quicktime has anything to do with iChat. I will check that tonight.
In ichats prefs click on video and change bandwidth
limit to NONE.
Alread set to NONE so this shouldn't be a problem.
Also all of you do a speed test
http://www.speedtest.net/ and tell us the up and
download speeds are.
I have done many similar tests and it is consistently rated as "excellent". I will need to do the test to find out the exact rate tonight when I am home.
So, out of the 3 things, sound like the Quicktime setting is the only one that I have not done.
Thanks.

Terrible iChat video quality. What gives?

My brother and I are trying to use iChat video. We both have an iMac, his is newer than mine, but we both have the same OS. On both ends the video quality is very poor and the audio is bad (hearing every other word). We both have high speed internet, I have cable he has DSL. We tried limiting the bandwidth to no avail. Any suggestions?
Thanks!

Also both of you should open the Connection Doctor (iChat Video menu) during a chat and tell us what Speeds (Frame and Bit Rate) you see.
You should get at least 15fps and have a speed in Bit rate of well over 100kbps (up to somewhere over 500kbps depending on your Internet speeds at both ends).
200-300 is common. 500+ is not unusual.
8:24 PM Tuesday; April 28, 2009

Improving iChat Video Quality

Is there anything one can do to improve the video quality on iChat. The image looks great on Yahoo Messenger and Skype but it's really fuzzy, blurry, distorted, pixelated when using iChat.

Hi
First have you set the Quicktime streaming setting, goto sys prefs/quicktime/streaming/streaming speed, set to 1.5mbps
In ichats prefs click on video and change bandwidth limit to 500.
Restart iChat.

Poor one-sided ichat video quality

The video picture that I see when ichatting with my mom is awful (around 50%). It only happens when I ichat with her, and she sees me fine. Our audio is also fine. My connection doctor indicated that: her video quality was 50%,her bitrate was 300 & mine was 600. Her connection doctor indicated that her bitrate was 700 & mine was 600. (I think both frame rates in both of our panels ranged between 11-17.) We both have MacBook Airs. Any thoughts as to what's happening and how to remedy it would be greatly appreciated. She bought the MacBook Air just so that we could ichat.
Thanks.

Hi
On your mum's mac go to ichats prefs click on video and change bandwidth limit to 500, if still happens try 200.
Restart iChat.
Tony

Why is the video quality for AVCHD when uploaded to youtube higher...

when submitted from a mac?
#1
http://www.youtube.com/watch?v=f8d-fQxdBmQ
I sent this video directly from my Macbook using iMovie 8.0 and that's the video quality results
#2
http://www.youtube.com/watch?v=5U3dDmAX7C0
I uploaded this using Adobe Premirere Pro CS 4 H.264 - youtube HD widescreen preset and those were the results...?
Why?

"I suspect you simply didnt wait long enough for youtube to fully process the video before you watched it."
Incorrect. After I uploaded the second video, I went to sleep, without watching it once.
So if I set the 2nd video to low resolution, would it end up looking like the first video? Because I still think the first video has better quality.

Ichat Video Quality pixelated and very delayed with friend on a Dell

I am on a Imac and have Airport express, but when I chat with my friend on a Dell, my video is pixelated and delayed. I talk with other friends on PC's and the quality is fine.

Add me to this problem. My powerbook G4 (10.4.10) can initiate with a mini G4 with isight (10.5.2) and be perfect in sync with video and audio. But if the mini initiates the chat a very long delay happens between voice and video. I also have an Ibook with 10.4.11 and when chatting with PB G4 are perfect, this applies to an intel imac with 10.5 only, ichat works fine. I think Ichat got affected with 10.5.1 or 10.5.2. I did noticed that if I open QT pro and make a recording(on mini), the actual caption is delayed but play back is ok. I have been playing with the QT preferences but does not seem to work. I saw there is a new update 10.5.3, and it includes so ichats update. Will keep posting. Pedro PS this is all in my home network. TWCNYC with 9600 kbps download and 488 kbps upload.

Video quality from ipod touch over wifi

It is to my understanding that you can watch video (downloaded from itunes and home video made with ipod touch) through apple tv 2. How is the quality of it, 720p HD or does it get distorted going from little to big screen? Does that include music videos downloaded from itunes?

Providing the content on the iPod is 720p then it will be 720p when streamed via airplay to the Apple TV.
Yes Music videos in iTunes will stream to the Apple TV.

Ichat video quality

I currently have a iMac G5 w/isight connected to a airport express wich in turn is connected directly to a ethernet port of my isp (apartment complex)
If i wire my imac into the socket through ethernet i can ichat with bitrates showing 2000kbps + (25 meg dl,5Ul connection)
However if i do the same through the airport express i struggle to get 700kbps
Now i realises 54mbps isnt what i am going to get and im not a n00b however surely i should get more than this through a 54g product?
Also video begins to degrade over 5 mins or so till it averages around 300k per second something wich is way off what i should get.
Any ideas?

hi alan,
i thought that as it was working (all be it not fast enough) the ports would have to be open?
Just gone to http://www.auditmypc.com/internet-speed-test.asp
and my speedtest came back with 8000 kbps down and 1000 up, this is faster if i go through a cable connection? any ideas or simple 54g bottleneck?

IChat doesn't connect to AIM over wireless connection

I'm trying to connect to AIM over an open wireless connection. What happens is iChat sits there for a few minutes saying "connecting" and then eventually tells me that it can't connect. I can still connect to the internet but it won't connect iChat won't connect to AIM.

Hi John,
If you have a wireless device that is separate from your modem then you need to apply the set up to that device.
Essentially it is turning off the DHCP server.
Setting up Static Addresses is better.
Setting up Static Addresses and the router as a access point is best.
One option for some modems is to be set to Bridge mode:
All ports are open and the Public IP address is passed to the router. You then only have to worry about one set of IP addresses and will have got around the Subnet problem.
Ralph
Ralph

QT: Poor video quality for gradients when Motion JPEG A/B codec used.

Hello,
I have a problem using the Quicktime (7.6) and the Motion JPEG A/B codec.
My workflow is as follows:
1. Create animation with Quartz Composer. This animation should use gradients from dark red to white.
2. Export the animation as Quicktime film (MOV), set full HD (1920x1080), duration e.g. 2 minutes.
3. Open exported MOV with Quicktime(Pro)
4. Export again to Quicktime film, now choose Motion JPEG A for codec, set quality to best.
5. Check the exported film. The gradient is not smooth, I see bright and dark lines. The quality of the gradient is poor.
I checked the other codecs. When I use "Animation" then the gradient is smooth and beauty.
Unfortunately I have to use Motion JPEG codec due to customer requirements.
Does anybody have an idea, how I can improve the quality? Maybe internal QT settings? Other external Motion JPEG codec ?
Thanks in advance
LeKarmar

Hello QuickTimeKirk,
Thank you for your reply.
I need Motion JPEG A/B or PhotoJPEG This is my "final distribution format" required by the customer.
I have problems not only with the red color. Even using grey, blue or yellow gradients produces bad output.
You're right. Animation codec produces what I will accept and want, but the files are huge sized and my customer doesn't accept this format.
Please note, that I already set the high quality playback setting in Quicktime.
Regards
LeKarmar
Message was edited by: LeKarmar

IChat video quality inherantly suffers when over wireless EVDO aircard?

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