Category: Video

12 February 2018 Bastien 0 Video

Even though recording a CRT TV screen with a DSLR gives one of the best result for glitch, it’s always handy to be able to display/record video on a computer. A recurring issue in converting a corrupted video signal from…

Rampes is now available! Demo video is up on YouTube (link in bio)

Rampes (pronounced /ʁɑ̃p/, french for ramps) is a video ramp generator and sync extractor, supporting the following formats
288p50/240p59.94/576i50/480i59.94/576p50/480p59.94/720p50/720p59.94/720p60
1080i50/1080i59.94/1080i60/1080p23.98/1080p24/1080p25/1080p29.97/1080p30

The format is detected and selected automatically.

In video, a ramp is a signal which produces a gradient that goes from minimum to maximum during the line interval (horizontal ramp) or the frame interval (vertical ramp). By mirroring and further processing them, it is possible to generate 2D shapes. Rampes also features horizontal, vertical and Odd/Even sync outputs, which allows to sync other video modules, as well as audio modules.

On its left side, Rampes features (top to bottom):

- Horizontal and vertical ramps with their inversions
- Mirrored horizontal and vertical ramps and their inversions

On its right side, Rampes features (top to bottom):

- Horizontal, vertical and Odd/Even sync
- Diamond, Rectangle, Cross, Star and Ellipse shapes

Rampes requires a sync signal over RCA to operate, coming either from a sync generator module, or an external video signal (Composite or Y from Component).
The module is powered through standard Eurorack connector or DC barrel.

Inputs:

RCA Sync input (rear), 75ohm
Outputs:

RCA Sync output (rear), 75ohm
0-1V Ramp and shapes outputs, 75ohm
0-5V Sync outputs, 75ohm

Specs:

- 8HP
- 200mA +12V
- 0mA -12V
- 0mA +5V
- 45mm deep

#eurorack #videosynthesis #analogvideo #syntonierampes #syntonie

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Apr 8

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Rampes is now available! Demo video is up on YouTube (link in bio) Rampes (pronounced /ʁɑ̃p/, french for ramps) is a video ramp generator and sync extractor, supporting the following formats
288p50/240p59.94/576i50/480i59.94/576p50/480p59.94/720p50/720p59.94/720p60
1080i50/1080i59.94/1080i60/1080p23.98/1080p24/1080p25/1080p29.97/1080p30 The format is detected and selected automatically. In video, a ramp is a signal which produces a gradient that goes from minimum to maximum during the line interval (horizontal ramp) or the frame interval (vertical ramp). By mirroring and further processing them, it is possible to generate 2D shapes. Rampes also features horizontal, vertical and Odd/Even sync outputs, which allows to sync other video modules, as well as audio modules. On its left side, Rampes features (top to bottom): - Horizontal and vertical ramps with their inversions
- Mirrored horizontal and vertical ramps and their inversions On its right side, Rampes features (top to bottom): - Horizontal, vertical and Odd/Even sync
- Diamond, Rectangle, Cross, Star and Ellipse shapes Rampes requires a sync signal over RCA to operate, coming either from a sync generator module, or an external video signal (Composite or Y from Component).
The module is powered through standard Eurorack connector or DC barrel. Inputs: RCA Sync input (rear), 75ohm
Outputs: RCA Sync output (rear), 75ohm
0-1V Ramp and shapes outputs, 75ohm
0-5V Sync outputs, 75ohm Specs: - 8HP
- 200mA +12V
- 0mA -12V
- 0mA +5V
- 45mm deep #eurorack #videosynthesis #analogvideo #syntonierampes #syntonie

(This is an extract of the last newsletter, part 3/3)
Stable update

The second revision of Stable has been built and tested, improving the noise level greatly by the use of active attenuverters, better power decoupling and moving the design on two boards instead of one, in order to help with the board layout.
Active attenuverter also allows for a better nulling of the CV modulation when the attenuverter is centered, particularly useful since the Contrast, Brightness, Hue and Saturation CV inputs are normaled together.
Hard to give an ETA yet, as there is still some things to fix, asking to revise both boards, then the firmware is mostly done, recently added support for all HD formats supported by VU007B, meaning Stable can be used as a Luma processor (no hue or saturation control, unfortunately) and stabilizer with HD Component.
Though, hope to have it ready during the summer. Wait and see I guess?

Video showing what Stable can achieve on it’s own, without any other modules involved. Messing with the contrast, brightness, hue and saturation parameters until 0:25, then using the pre-processor jack output (unprocessed video input) into the CV inputs until 0:44, and the last part is using post-processor output as modulation, creating some nice feedback effects typical of Composite video glitch.
Recorded with BM Analog to SDI + Video Assist in Composite PAL/576i50.

#videoart #glitchart #analogglitch #analogvideo #eurorack #syntonie

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Mar 7

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(This is an extract of the last newsletter, part 2/3)

Cadrans update

Now that the work on Rampes is done, time to work on the next revision of Cadrans. Been modifying the current revision for the past week or so, fine tuned a couple things, will be spending a few more days on it to exhaust what I can do with the current revision of the boards.
Once done, schematic and board files will be revised, and finger crossed, those will be the production revisions!

Video demonstrating the crossfading feature of Cadrans, one RGB feed is made with Rampes shapes into Seuils input and CV input, the other feed is a stock video decoded with Entrée and processed through Isohélie for posterization. Both are faded using Cadrans, using one of Seuils logic outputs as a CV first, giving a keying related to the shapes, and then using Y output from Entrée into LZX Keychain to generate a key based on the external video.
Recorded with BM Analog to SDI + Video Assist in Component 720p60.

#videoart #videosynthesis #analogvideo #eurorack #syntonie

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Mar 7

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(This is an extract of the last newsletter, part 1/3)

1) Full restock = 15% off everything

Syntonie being a one man army, and with an ever growing product catalog, it’s not always easy to keep everything in stock, so this is a rare enough occurence worth celebrating!
To do so, everything listed on the website is on sale with 15% off, starting today, March 7th, until March 22nd 23:59 GMT+1.
So if something you wanted was out of stock, now is the time!

Video is made with Entrée displaying the key mask with the logo and text, Rampes generates the shapes processed through Solaire, and a slow modulation from Animate is going to Solaire as well. Taking Solaire outputs into Cadrans inputs, with the key mask as CV on all three Cadrans channels.
Cadrans outputs going to VU007B RGB inputs. Recorded with BM Analog to SDI + Video Assist in Component 720p60.

2) Rampes update

Happy to announce that Rampes is now ready for production! Most of the parts are in stock and the rest is on its way, so expecting to have it in stock in about a month.
Beside fixing some issues, the latest revision also modified the sync outputs to be 5V amplitude rather than 1V, which makes the interfacing with audio Eurorack modules easier, while keeping it compatible with video modules that takes front panel sync.
It has been tested with various audio modules, and it works well, may ask for some logic frequency divider, as the hsync might be a bit fast for some modules, since its ranging from 15kHz to 45kHz. Had a lot of fun using a sequencer clocked by vsync to modulate video on frame time base.
Another newsletter will be send out once Rampes is ready to ship.

Video is made by sending various outputs of Rampes into Cadrans, and rectifying the outputs of Cadrans with Solaire. Another Solaire is used to mix and rectify shapes from Rampes and a slow modulation from Animate, outputs of the second Solaire used as modulation on Cadrans.
First Solaire outputs going to VU007B RGB inputs. Recorded with BM Analog to SDI + Video Assist in Component 720p60.

#videoart #videosynthesis #analogvideo #eurorack #syntonie

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Mar 7

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#videoart #videosynthesis #analogvideo #eurorack #lzxdwo3 #reverselandfillmatrixmixer #rampes #syntonieseuils #syntonieisohelie #syntonieanimate #vu007b

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Feb 11

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#videoart #videosynthesis #analogvideo #eurorack #lzxdwo3 #reverselandfillmatrixmixer #rampes #syntonieseuils #syntonieisohelie #syntonieanimate #vu007b