LOW LATENCY PROBLEM via Delivery Network. Help .

I would like to have a low latency streaming option even if it does eventually mean running only a single stream.
I am running 2 Mbps H.264 stream via a content delivery network. During the first 30 seconds or so the the latency is about 1 second between source and viewer it then increases after a short while and settles down to about 3 or 4 seconds. I have changed the : Delivery Network (CDN), the bit rate, the codec from H.264 to VP6, and taken off the auto adjust option but I can't seem to get a permanent low latency stream. My colleague has dropped the buffering at his end (or at the server ) and although this makes an initial affect , we still end up with a three second delay.
I do not have any formal training on streaming (not sure who does) so I have to ask : should I by-pass my CDN and point the single stream at the viewer ?
I anticipate working in different locations so I expect a heap of problems - blocked by routers , can't find the IT guys etc etc .
Also, I have a funny feeling that RTMP/Flash will automatically resort to a three/four second delay.
Any ideas for a stable low latency stream ?

When the number of bytes read is less than the array
lengthThat doesn't necessarily mean you're at the end of the data.
Any other wahy, maybe a timer (if is not receiving
any byte for 20 seconds then cut the conexion?)Again that doesn't necessarily mean you're at the end of the data.
There is no way to know you're at the end of the data without either an application protocol containing the length, or a socket close at the sender.

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CANT receive data via a network, help me please

Hi, I am not as newbie as I look like to.
I am trying to receive data through a network. The problem is that I dont know the file size, so I kept reading until reaching the end of file and the save it to a file. The problema is that I am never geting the -1 result from the read method.
Now, I noticed that the -1 is returned when I close the DataOutputStream. So thats okay. The problem is that the sender is not make in java, but on pocketBuilder. And I cant ask for the client to close an outputStream. So Is there any way to just read the data without knowing the number of the bytes to receive and doesnt waiting for the end of the stream.

When the number of bytes read is less than the array
lengthThat doesn't necessarily mean you're at the end of the data.
Any other wahy, maybe a timer (if is not receiving
any byte for 20 seconds then cut the conexion?)Again that doesn't necessarily mean you're at the end of the data.
There is no way to know you're at the end of the data without either an application protocol containing the length, or a socket close at the sender.

Looking for low cost CDN (content delivery network)

does anybody know of a cheap CDN for streaming video? I have looked at the premium CDN's on the Adobe treaming Server product page but they all seem to be very high cost. they do not provide pricing on their sites and you have to phone for quote which screams expensive. I want to stream the occasional corporate seminar. Not millions of videos.
Cheers
Angus

Hey, Matt-
For Animate 1.5, yes, jQuery served off of Google's servers, but it is browser-independent. Think of Google as just another webserver in this case. For Animate CC, jQuery is served off of Google's servers and the Animate runtime is served off of Adobe's servers. All of this should be available regardless of what browser you use.
Regarding the glow filter, CSS Filters are only supported by Webkit-based browsers. Firefox is not a Webkit-based browser (whereas Chrome and Safari are), so filters are not supported.
http://caniuse.com/#feat=css-filters
Remember that the down-level stage (where you would post your poster image) is only displayed in browsers that do not support Animate content in general (mostly IE6-8), not just support or not support particular features that Animate makes available to the user. Most people have gotten around this by using transparent PNGs to fake the glow to make the animation as cross-browser as possible. While this is unfortunate, there's not much we can do to get out and push the browser's implementation of this standard.
Hope that helps clarify things for you!
-Elaine

DataGuard question - overcoming network latency problem

Hi
Dataguard for 10.2.0.4
Assuming we have a latency problem with the network between the primary and secondary databases in a dataguard configuration.
That means that my bottleneck is currently the network that cannot accommodate the amount of redo that is generated per second by the primary, and archive logs are accumulating on the primary site
Is there a way to configure the redo transport on the primary to transfer the archive logs in parallel – in case there is an accumulation of archive logs waiting to be shipped
I am talking parallel transfer to the same site , not to different sites – just to overcome the network bottleneck
Thanks in advance
Orna

Hi Sybrand,
Quoting from the doc
'Oracle Database 10g Release 2 introduces the ability to have multiple ARCn processes sending redo for a single archived-redo log over the network, reducing the time required to ship a single archive log to a remote destination. In previous Oracle Database releases, only one ARCn process at a time could archive redo from a given log file. The maximum number of network connections that will be used in parallel to perform archival to a destination is controlled using the MAX_CONNECTIONS attribute of the LOG_ARCHIVE_DEST_n initialization parameter. The LOG_ARCHIVE_MAX_PROCESSES initialization parameter can be set as high as 30, (the previous maximum was 10)'
My 'back of a cigarette packet' calculation was not meant to be exact just meant to illustrate a point :-)
I still think your confusing bandwidth with latency but I don't want to poke an angry response :-)
Cheers,
Harry
Edited by: Harry on Jul 10, 2009 3:33 PM - seems the language filter doesn;t like my British slang. Changed to cigarette......

Low-latency networking. How exactly?

Is there detailed information on how W2012 is better in terms of low-latency TCP networking?
I am talking of using specifically designed NICs for low-latency networking like Solarflare and Myricom 10GBe cards.
Solarflare reports 8-10us latency on Windows 2008 R2. What can I expect from W2012 ?
What are new features or improvements which can contribute to lower latency?

We are in the process of publishing this formation and will be making that avalable over time. We will also be publishing guidance on how to achieve the best latency for different kinds of workloads.
There are a wide range of features that are focused on specifically on latency, and reduction of variation in latency in Windows Server 2012. The latency you can achieve with standard NICs is substantially less than 8-10 us that you mention, even on
Windows Server 2008R2, but this will depend on the NIC type, NIC driver version, NIC settings, CPU capabilility, and the programming model you are using and one has to be careful in trying to compare measurments when these sorts of parameters
are not specified. There is also a new extension to Winsock in Windows Server 2012 that is targeted at low latency and high speed multicast reception, and improve performance further.
A place to start looking would be here:
http://technet.microsoft.com/en-us/library/hh831415.aspx
You may also be interested in this information about Windows RIO Sockets
http://technet.microsoft.com/en-us/library/hh997032.aspx
and
http://channel9.msdn.com/Events/BUILD/BUILD2011/SAC-593T
Myricom's website says they get much better latency on Windows Server 2008R2 than the numbers you mention, but you might contact them for further details
http://www.businesswire.com/news/home/20110801005648/en/Myricom-Introduces-DBL-Windows-%E2%80%93-Accelerated-UDP
And for even lower latency, you can use Network Direct over Infiniband to get down to 1 microsecond or below (depending on the speed of the interconnect)
You may also be interested in the Performance Tuning Guidelines for Windows Server 2012, which includes some low-latency specific information.
http://msdn.microsoft.com/en-us/library/windows/hardware/jj248719.aspx
Finally, if you're configuring NICs and working on latency, you'll be interested in this:
http://blogs.technet.com/b/wincat/archive/2012/08/27/using-powershell-for-nic-configuration-tasks.aspx
Thank you for your interest and stay tuned !
Ed Briggs
Principal Program Manger
Windows Server and Cloud Division

Sometimes my iphone 5S produces low sound even on full volume level. Then i do restart it. But i am not sure where exactly the problem is? Need help.

Sometimes my iphone 5S produces low sound even on full volume level. Then i do restart it. But i am not sure where exactly the problem is? Need help.

Hi saiyed adil,
Thank you for contributing to the Apple Support Communities.
It appears that your iPhone 5s sometimes produces low sound, but a restart corrects it.
It can take some time to isolate and resolve intermittent issues like this one, and I'd recommend going through the steps in this guide the next time it occurs:
If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker - Apple Support
All the best,
Jeremy

After installed mavericks i cannot sign in to my facetime and i messages. i tried it 100 times, but it is showing couldn't sign in check your network and try again. there is no problem with my network. if anyone knows the solution please help me .

After installed mavericks i cannot sign in to my facetime and i messages. i tried it 100 times, but it is showing couldn't sign in check your network and try again. there is no problem with my network. if anyone knows the solution please help me .

Hi,
What version of the OS did you upgrade from ?
Anything before OS X 10.8.2 may have an issue if the Logic/Mother board has been replaced and the Serial Number not "flashed" back to it.
In the Apple Icon menu use the About this Mac item.
In the new panel click twice on the line that tells you the current OS level
It will change to the Build number (and alternative count to the OS versions) and then the Serial Number.
If it is missing you need to get it replaced.
(It is supposed to be done on Repair or Refurbishment).
An Apple Store or Apple Authorised Service Provider as the best choices.
There are apps you can download (They are Mac Model specific) but needs careful typing as it is a once only trip.
8:56 pm Sunday; November 24, 2013
 iMac 2.5Ghz 5i 2011 (Mavericks 10.9)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad
Message was edited by: Ralph Johns (UK)

TS1398 iphone2 can not scan for my wireless network; i tried all troubleshoots but still same problem. Can anyone help?

iPhone2 can not scan for my wireless network; i tried all troubleshoots but still same problem. Can anyone help?

Anyone have any ideas or information to help with this? Any help and consideration is MUCH appreciated.

I cant connect my i phone 4 to my sony vaio laptop via bluetooth i am having problem can any one help me how can i connect my i phone 4 to my laptop using bluetooth i tried to paired but it just doesnt work help me pls!!

i cant connect my i phone 4 to my sony vaio laptop via bluetooth i am having problem can any one help me how can i connect my i phone 4 to my laptop using bluetooth i tried to paired but it just doesnt work help me pls!!

Unless you're trying to tether your phone to your computer or create a personal hotspot, it won't pair with your computer by bluetooth. File transfer by bluetooth is not supported. So, you can quit trying unless you're trying to tether.

Nokia 5130 problems...please help!

hiya i recently updated my Nokia 5130 over-the-air and had no problems so far. then i have downloaded the latest internet settings fro my phone via my network operator. no problem there. but whenever i surf the net or use 3rd-party chat service the internet shuts down and just stops working? why is this? is there a way to use my internet (to surf or chat) seamlessly? (n.b. i have an unlimited internet option on my network account).
please help!

you need to call them again the message comes via text its a configuration setting ,then you save this message so call them again
If i have helped at all a click on the white star below would be nice thanks.
Now using the Lumia 1520

New iMac can't find photosmart 2610 over network -- HELP

Just got a new iMac 24" 2.8gig with Leopard. Most of the setup went fine, but the computer steadfastly refuses to see my printer over the wireless network. It is an HP Photosmart 2610.
I have used the same printer wirelessly with a MacBook Pro with no problem -- it found it right away, though that was with Tiger (it still worked after it was upgraded to Leopard). It also works great with 3 Windows WP PC's, two wirelessly and one via ethernet.
My Router is a Cisco 800 series and I use a Cisco WAP. The iMac had no problem connecting to the WAP and Internet.
The core problem is the iMac doesn't acknowledge that the printer exists. It doesn't find it automatically and when I direct it to the correct IP is still doesn't find it. Also, Leopard doesn't seem to have the driver for it. When I search for drivers from the pull-down after entering the IP I get a bizillion HP options including many Photosmart's. But the lowest model # without a letter in front of it is the 3300.
I then tried downloading the dirver from HP. It said it installed successfully but still didn't show the driver from the pull-down. When I tried used "other" and directing it straight to the driver it would act like nothing happened and come back to the same pull-down without the 2610 as a choice. I also tried installing HP's entire all-in-one software suite for 10.5. It installed sucessfully but also doesn't see the printer.
I tried temporarily moving the iMac and connecting it to the 2610 via USB. It suddenly found it no problem -- both the iMac software and the HP software. And it worked fine... The moment it was back via network, it doesn't find it despite it still working fine from every other device in the household.
Not sure what there is left to try. It is not an option to permanently have it connected by USB. I spoke with HP and they say that because it works from every other device. They say it is an Apple issue. Apple says it must be an HP driver issue points me back to HP. So I am left in limbo with no functional printing capacity.
I've tried searching the Internet for any reports on this but can't find them. Others seem to be successfully using the 2610, though it is unclear if others were using it via the Network.
Any help is greatly appreciated. I am beginning to wonder if HP ceased supporting the network functionality in their 10.5 driver update but I can't get an answer on this.
Thanks.

To be specific, since the Apple Printers and Faxes function does not find it in the "Default" list, I select "IP" and then enter the valid IP address that I know to be for the printer. I have tested it multiple times from other devices to confirm the IP address and even printed a network diagnostics page from the printer to confirm it. I even had someone else review it for typos just to cross every base...
It then accepts it as a "valid" IP address and assigns it a "Generic Postscript Printer." I then chose the pull down for "other" drivers. I just checked again. There is no driver called "HP IP". There are hundreds of HP drivers those. I am looking for the HP Photosmart 2600 series. But the lowest series they list is the HP Photosmart 3100 series.
Again, I have covered all the bases I can think of. The Apple site lists the 2600 series as an included driver in Leopard but it isn't showing up. The HP site lists the 2610 as "Leopard ready." I have downloaded and run the OX 10.5 HP 2600 series driver executable from HP and it says it was successful (tried several times). I also downloaded and installed the entire stupid 400-and-something MB software "all-in-one" software suite for the 2600 series from HP. You can run its own setup program indpependent of the Apple one and it doesn't find it either. When you enter the IP is says it found no printer and refuses to continue the setup. I have turned the printer on and off many times and checked all the connections. I have confirmed that the other PC's in the household are in fact seeing it at that IP...
I have spoken with Apple Tech Support ("it must be an HP driver issue, sorry") and HP tech support ("it must be a problem with your Mac because it works for others... but perhaps we can sell you a new printer that should work better" (no kidding, they actually tried to do this!).
On principle (and practical) grouns I am reluncant to get a new printer when the one I have works perfectly well for everything accept this Mac. But I am totally out of options unless someone can help.

Wired Windows XP Printing Problem to AEBS. HELP!!!!!

I have been trying to figure this out for the past two days. Im basically about to rip my hair out.
I have an old AEBS (the saucer one) with the 5.7 firmware, with an HP Office Jet J5780 connected. I have 2 Macs, both running 10.5.2 connected wirelessly, and everything works fine. They both print no problem.
I also have a Dell desktop with Windows XP SP2 connected to the AEBS via ethernet. I installed Bonjour for Windows and it recognizes and installs the printer. But once I go to print something, it just comes back with a "failed" error.
I have tried uninstalling and reinstalling Bonjour, deleting and re-adding the printer, using different drivers, (i tried using a Generic/Post script driver rather than the actual HP driver, still nothing), resetting the AEBS, and restarting it. I even tried adding the printer manually using a TCP/IP port (10.0.1.1). Still nothing.
Something thats very weird is that if I try to print something from the windows computer, wait for it to fail, THEN restart the AEBS, the document I just sent to print magically prints. But anything I try to print after comes back with the same message. To get anything to print I would have to restart the AEBS every time.
I hope someone out there knows whats wrong! Please help me!!!
-Lost in NYC

I have experienced the exact same problem trying to print from a Windows XP Dell Laptop. We were able to print via the network in the morning and then with no warning it stopped.
One of the many times we attempted to print, I reset the Airport and it did kick out a document that had been sent and "failed to print."

Using network shared variables in two computers connected via a network switch

let me start by saying im a rookie to the programming environment but i have used Labview a couple of times to understand the basics, i have a computer and a laptop (both using vista), both of them with Labview Full development System (Student ed. with Mathscript) installed, so what im tryin to do is to use the built in microphone located in the laptop to aquire sound and then use a Shared Variable to transfere the sound signal from the laptop to the computer, the laptop and the computer are connected to a network via a network switch and ethernet cables, so far i nothing worked, i can manage to create the shared variable in the laptop and use it there but it doesnt appear in the computer, im not sure whats the problem i have even disabled firewalls in both systems, help from anyone wil be appreciated.....

Hi Lukie,
This KB should be of some assistance to you.
Trouble shooting network published shared variables
Also the following link gives some instructions on the use of shared variables.
http://zone.ni.com/reference/en-XX/help/371361B-01/lvhowto/bind_to_source/
I hope this is of some assistance, let me know if you have any more problems.
All the best,
Message Edited by mickeyw on 08-05-2008 12:29 PM
Mike W
Applications Engineer
National Instruments UK&Ireland

HP Elitebook 2530p RAM - Kingston HyperX low latency -- not compatible?

Hello, I would be grateful for help! I tried to install the following RAM in two different 2530p Elitebook:
Kingston HyperX --- KHX6400S2ULK2/4G --- These are two moduls, each 2Gb.
I tried it out with only one of 2Gb or both of them, but the notebooks did not boot. Both tested HP 2530p motherboards are model 30E1, version F12, Intel chipset GS45, revision 7. -- One has SL9600 processor, one has SL9400 processor. The operating system is Win XP Prof SP3 / 32-bit.
This is DDR2-6400 RAM with similar specifications to the original RAM (which works fine), but ULTRA LOW LATENCY.
>>>> QUESTION: Is there any compatibility problem known with ultra low latency RAM and HP 2530p?
>>>> OR is the problem that I am using a 32-bit operating system? And this is ONLY for 64-bit OP?
KHX6400S2ULK2/4G
4GB (2GB 256M x 64-Bit x 2 pcs.)
PC2-6400 CL4 200-Pin SODIMM Kit
Thanks a lot, I will try to help with other issues I already experienced, now we have three 2530p in my family.
Christian

After reading over the unofficial guide more carefully, i cam accross a link to kingston homepage about a related issue with the KHX3200/xxx modules: http://www.kingston.com/support/faqs/memory/intel_3.asp
This has led me to believe that the KHX3200UL/xxx modules will infact not work, as they are more vigerous than the KHX3200/xxx modules. According to the second solution of that link, i have purchased 2x KHX3200A/512 modules (same ram with slower timings) which, according to kingston, should work with i865 boards. Is anyone able to confirm this?
Thank you again

Plugging my guitar into my interface, i have huge latency problem en gb 08, mac laptop os5.8

please help, when I plug my guitar directly into my tascam us 144 interface the latency problem makes it almost impossible to record a decent track. I am using GB 08 on a mac laptop with OS 5.8

You can, with the right sort of connector, physically plug a lead from your guitar directly into the MacBook. The problem, as I understand it, is that the signal produced by your guitar (Hi-Z) is not what your MacBook's input jack is designed for (line level). You need something like a direct box or an effects unit that will boost the guitar signal to line level (depending on the make/model, even some stompboxes may do this) or a cheapo audio interface that provides at least a Hi-Z input for your guitar and a line-level output from which to run a cable to your MacBook's line-level input; you can also plug your guitar into something like the M-Audio Jamlab which goes into your MacBook via USB.
Cheers,
Carl

LOW LATENCY PROBLEM via Delivery Network. Help .

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