Introducing freenbtv - new NBTV generation software

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Re: Introducing freenbtv - new NBTV generation software

Postby settinger » Thu Dec 28, 2017 4:23 pm

Thanks for the update! Terrific! Can you release the updated source as well? I'd love to help contribute...are you using any form of source control or ways to manage contributors?
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Re: Introducing freenbtv - new NBTV generation software

Postby smeezekitty » Thu Dec 28, 2017 6:03 pm

settinger wrote:Thanks for the update! Terrific! Can you release the updated source as well? I'd love to help contribute...are you using any form of source control or ways to manage contributors?


The source is in the archive. I'm ashamed to say that I don't have any version control. Bad, I know.
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Re: Introducing freenbtv - new NBTV generation software

Postby Harry Dalek » Sun Dec 31, 2017 1:13 pm

Hi i have been experimenting with the software i was meaning to ask does it add the framing sync to the video ? This would come in handy .
Also i have been trying to increase the scanning area of an image it sticks to the nbtv aspect ratio screen ..is that set ? i can move it around the areas of the image .
Is it possible to bring up the image before you hit the start making a wav file ?

Its working very well i still have to play with it more but its pretty good , a mult standard version monitor software would be very handy too one day ..but this is great to test in standard and out of standard line and frame rate systems for monitors...Lucky we have people like you and Gary and Dom that have made software its very helpful for this hobby .
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.
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Re: Introducing freenbtv - new NBTV generation software

Postby smeezekitty » Sun Dec 31, 2017 2:42 pm

Harry Dalek wrote:Hi i have been experimenting with the software i was meaning to ask does it add the framing sync to the video ?

There are quite a few sync options you can configure on the "channel setup" dialog. By default (in the NBTVA preset), it adds 175uS pulses at the beginning of each line and there is a missing pulse at the end of each frame.
Also i have been trying to increase the scanning area of an image it sticks to the nbtv aspect ratio screen ..is that set ? i can move it around the areas of the image .

You can't yet adjust the size of the frame with your mouse but you can adjust it by changing the "width" and "height" on the input dialog. If you uncheck the "lock aspect" checkboxes, you can set it to any aspect ratio you would like. It's supposed to be also possible that you can lock it to any custom aspect ratio but it seems to be broken. It's the first time I noticed that bug so I'll add it to the list. I should really set up github and use a public bug tracker!
Is it possible to bring up the image before you hit the start making a wav file ?

Unfortunately there is no preview option. But what you can do is set it to output to the sound card, start it and set up your position and size, stop it and then set it to create the WAV file. It will keep the position and size unless you change input file.

Its working very well i still have to play with it more but its pretty good , a mult standard version monitor software would be very handy too one day ..but this is great to test in standard and out of standard line and frame rate systems for monitors...Lucky we have people like you and Gary and Dom that have made software its very helpful for this hobby .

One of these days hopefully it will happen. I'm a college student now so I have rather limited time to work on hobby projects at the moment. It's certainly planned though.
It's amazing how much software there is targeting such a niche hobby!
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Re: Introducing freenbtv - new NBTV generation software

Postby Harry Dalek » Sun Jan 07, 2018 11:33 pm

Thanks for the reply ,i have been playing around some more seeing it i can add remove adjust the sync i saw there's another window to adjust these levels ,and reviewing on a scope .
Very good work i enjoy using the program there's lots still to learn for me .
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.
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Re: Introducing freenbtv - new NBTV generation software

Postby Harry Dalek » Sun Jan 21, 2018 8:34 pm

Testing some settings on Free NBTV and my sound card answering a question Steve was wondering what my sound card could do .
I set Free NBTV to 64 line frame 12,5 hz 360 pixels per line .
Sample rate started with 48000 and BPS 8 and moved to highest setting i could do 192000 BPS 16
This all seems to work results in image screen grabs below ,used Doms software to view.
EDIT you may notice there's not much difference to the bottom image but notice the line bottom of test card
Attachments
tca.jpg
tca.jpg (41.43 KiB) Viewed 965 times
Screen 00003.jpg
sample rate 48000 BPS 8
Screen 00003.jpg (8.6 KiB) Viewed 965 times
Screen 00004.jpg
48000 BPS 16
Screen 00004.jpg (8.38 KiB) Viewed 965 times
Screen 00005.jpg
96000 BPS 8
Screen 00005.jpg (10.04 KiB) Viewed 965 times
Screen 00006.jpg
96000 BPS 16
Screen 00006.jpg (10.08 KiB) Viewed 965 times
Screen 00007.jpg
192000 BPS 8
Screen 00007.jpg (9.92 KiB) Viewed 965 times
Screen 00008.jpg
192000 BPS 16
Screen 00008.jpg (11.04 KiB) Viewed 965 times
Last edited by Harry Dalek on Mon Jan 22, 2018 7:54 pm, edited 1 time in total.
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.
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Re: Introducing freenbtv - new NBTV generation software

Postby smeezekitty » Mon Jan 22, 2018 5:42 pm

Thanks for testing! There is a big difference going from 48K to 96K but not much difference going to 192K . It might be downsampled to 96K
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Re: Introducing freenbtv - new NBTV generation software

Postby Harry Dalek » Mon Jan 22, 2018 7:32 pm

smeezekitty wrote:Thanks for testing! There is a big difference going from 48K to 96K but not much difference going to 192K . It might be downsampled to 96K


HI its something i never tested as well BTW before i forget i could not get 48 line to work correctly on Doms software worked fine in 32 and 64 ..
EDIT ....must of been a computer problem its working now so forget the error

Yes you could be right what the sound card can do and what it lets you do and says it can do can be two different things....192khz i can see the line right at the bottom of the test card so it must be recording at a touch higher than 96khz....may be on the top setting it just works the card to the maximum ...

I was trying some other test cards today ...
Attachments
download (2).jpg
download (2).jpg (14 KiB) Viewed 949 times
Screen 00028.jpg
192khz 16 BPS 32 line
Screen 00028.jpg (11.01 KiB) Viewed 949 times
Screen 00029.jpg
192khz 16 BPS 64 line
Screen 00029.jpg (10.93 KiB) Viewed 949 times
TC60.jpg
TC60.jpg (12.8 KiB) Viewed 949 times
Screen 00009.jpg
192khz 16 BPS 32 line
Screen 00009.jpg (10.56 KiB) Viewed 949 times
Screen 00010.jpg
192k 16 BPS 64 line
Screen 00010.jpg (9.4 KiB) Viewed 949 times
sample-large-traditional.jpg
sample-large-traditional.jpg (91.7 KiB) Viewed 947 times
Screen 00011.jpg
192khz BPS 16 32 line
Screen 00011.jpg (13.08 KiB) Viewed 947 times
Screen 00012.jpg
192khz BPS 16 64 line
Screen 00012.jpg (13.45 KiB) Viewed 947 times
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.
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Re: Introducing freenbtv - new NBTV generation software

Postby smeezekitty » Sat Feb 17, 2018 11:48 am

Alpha 3 version release

Change log:
  • Fixed permission errors
  • Reduced installed file size by ~15 MB
  • Removed the need for launcher batch file
  • Partially fixed custom input aspect ratios
  • Fixed one source of crashing...other crashes still need to be tracked down
Attachments
freeNBTV_a3_src.zip
(61.77 KiB) Downloaded 50 times
freeNBTV-alpha3-install.zip
(14.35 MiB) Downloaded 56 times
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Re: Introducing freenbtv - new NBTV generation software

Postby Harry Dalek » Sat Feb 17, 2018 5:43 pm

Seems to work good on my computer ,really had no real problems with the last version either apart from sometimes i had to restart it if that's a big problems to others wasn't to me .
I am happy you are still working on it its a good software for us .
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.
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