iPad for live playback?

[Von Thomas]

I'm curious to know if anyone has had luck with live playback on an iPad? I've used the Teradek Cube, but there is a delay, I'm looking for a non-delay solution, does it exist?

Von

[Blair S. Paulsen]

If somebody can make the iPad function as an on set monitor that would be huge. Long battery life, lightweight, better picture quality than one has a right to expect, many people will show up on set with one of their own, easy to handle, etc.....................

Sign me up!

Cheers - #19

[Patrick Tresch]

Not Ipad based but it seems that the most affordable solution "without delay" would be Paralinx Arrow.

Pat

[Dan Kanes]

Thanks for the plug Patrick ;)

Von,

We think the ipad is a super cool device, its ingenious - but here is the thing - there is not enough processing power to feed a latency free image through a wifi pipeline and then decode it on the fly, while maintaining a decent quality image.

Even if you could encode super super fast, you still have to encode, then you have to send, your data is subject to all the error correction and packetization parsing of a wifi based system, and then you still have to do the decoding once it gets to the ipad, and its LSI. That being said - I think Teradek have made leaps and bounds with their second generation device and I think I have seen it stream to one ipad a very low latency stream. By putting the wifi host platform onboard their transmitter they have done themselves a huge service. And Frankly, I would love to own one personally. Its no replacement for latency free, uncompressed though.

This is why we made the PARALINX ARROW. compression always yields greater latency.

If indeed you are looking for a playback system - "minutelies" as served up by Lightiron Liveplay and a Teradek, or even Liveplay with something like BlackMagic media Express software plus the capture hardware of your choice will work - even A Q-Take system can work with Liveplay if you set your Qtake capture folder to be served up as the viewable directory and use the right encoding

[scott william]

hi Dan,

are you saying the ipad wont receive the image at all or the image will look like crap? would this be the same with all tablets including the Samsung 7 series which had more processing power?

I'm very close to ordering your wireless system just looking for a portable monitor to send it to.

[Tom.Wong]

fact of the matter is, tablets are limited in their input connection. live signal, hdmi, dvi, hd sdi, are all uncompressed. usually a tablet's input is USB. nowhere even close to fast enough to handle a uncompressed hd video stream. neither does the wifi or bluetooth. so what dan is saying, a compression element has to exist on that live signal so that the signal is small enough so that these input connections can handle the bandwidth.

something like the teradek cube, puts a lot of compression on the signal. that's why a lot of workflows just let the software/hardware create mp4's first and u can review later over wifi. the straight streaming has a heavy delay cause it has to compress first, than go into the tablet. it's a physical limitation in the tablet itself. and the only way around it is, tablets that have a faster connection as a input, or a faster method of high quality live compression.

[Dan Kanes]

Scott - our system is designed to work from our transmitter to our receiver - there is no Large Scale Interface (aka where the picture information goes directly) access to the signal input for picture on an ipad or other tablet's display at this time.

This is something that manufacturers could change. I don't think they will, but I'd love to be proved wrong (come on iphone 5 w/thunderbolt in + next gen ipad)

As for recommended monitors to use with our receiver I like:

Small HD DP6 and DP7 Pro
Ikan D7W and D5W (I like waveforms)
TV Logic 5.6w - this is actually the current industry standard but I think it has a crap picture. The connectivity is good though.
after that...generally any HDMI input monitor will work with our system.

[Kwan Khan]

I'm curious to know if anyone has had luck with live playback on an iPad? I've used the Teradek Cube, but there is a delay, I'm looking for a non-delay solution, does it exist?

Von

Yes it does exist (not for iPad)... Please take a look at my test...
http://www.reduser.net/forum/showthr...nalfootage-com)