OMwiki:Gear
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- | + | __NOTOC__ | |
- | + | ||
+ | This page outlines a set of recommendations for recording a meeting using composite video, with slide mixing. Similar pages for [[OMwiki:Interviews|video-casting stations]], [[OMwiki:Roving|roving cameras]], and audio capture are under preparation. | ||
- | + | ||
- | + | <imagemap> | |
- | + | File:Composite-room-diagram-withslides.svg|thumb|350px|Alt=Composite Video Room Setup Diagram (w/ Slide Mixing)|<font color="Black">Room setup, diagrammed (with slide mixing). Click on an object to learn more; the image is [[:wikipedia:Image_map|area-hyperlinked.]]</font> | |
- | + | ||
- | rect | + | rect 65 79 123 171 [[#Speaker|Speaker]] |
- | rect | + | rect 126 96 171 143 [[#Presentation_Laptop|Presenter's Laptop]] |
- | rect | + | rect 126 158 168 184 [[#VGA_Splitters|VGA Splitter]] |
- | rect | + | rect 128 187 164 213 [[#Scan_Converters|VGA->Composite Scan Converter]] |
- | rect | + | rect 182 186 217 212 [[#Monitors|Scan Converter Monitor+Recorder]] |
- | rect | + | rect 127 358 168 386 [[#Video|Composite Video Switcher/Mixer]] |
- | + | rect 25 297 114 354 [[#Auxiliary_Video|Auxiliary A/V Source]] | |
- | rect | + | rect 326 238 365 291 [[#Cameras|Camera]] |
- | rect | + | rect 370 223 409 299 [[#Cameraperson|Cameraperson]] |
- | rect | + | rect 127 394 315 431 [[#Composite_A.2FV_Splitters|Composite A/V Splittter]] |
- | rect | + | rect 272 338 300 379 [[#Monitors|A/V Monitor+Recorder (Post-mixing)]] |
+ | poly 417 216 431 289 401 339 330 376 409 523 549 356 548 212 [[#Audience|In-Room Audience]] | ||
+ | rect 177 434 204 468 [[#Encoder|Encoder Machine]] | ||
+ | rect 89 476 287 596 [[#Distribution|Internet Broadcast]] | ||
+ | rect 333 47 549 193 [[#Projectors|In-Room Projection]] | ||
+ | rect 186 57 301 166 [[#Lighting|Non-Ambient Lighting]] | ||
desc bottom-left | desc bottom-left | ||
</imagemap> | </imagemap> | ||
+ | |||
+ | ==Speaker== | ||
+ | *Properly attired, light makeup if heavy lighting is used | ||
+ | *Helpful to have the speaker tour the room beforehand and try a test run | ||
+ | *Send notification of archival video publication | ||
+ | *Recommendation: >200mW green laser pointer, carefully wielded | ||
+ | |||
+ | |||
+ | ==Presentation Laptop== | ||
+ | *Presenters' laptops are not generally available beforehand, but it is helpful to send instructions on signal output expectations. | ||
+ | *Carry several different cable converters: [http://store.apple.com/us/product/MB572Z/A Mini DisplayPort to VGA], DVI-to-VGA, miniDVI-to-VGA, ''etc.'' | ||
+ | *Recommendation: Thinkpad-style laptops; stay away from HDMI | ||
+ | :Special notes: In-room wireless bandwidth traffic spikes during presentations, so it is best to have on-podium Ethernet connections. | ||
+ | |||
+ | |||
+ | ==Splitters== | ||
+ | ===VGA Splitters=== | ||
+ | *Powered ''via'' outlet power or USB | ||
+ | *No fancy features beyond signal duplication; these are hardware-only devices | ||
+ | *Recommendation: [http://www.radioshack.com/product/index.jsp?productId=3521446&CAWELAID=325278351 Gigaware 2-Port USB Powered VGA Splitter] or similar | ||
+ | |||
+ | ===Composite A/V Splitters=== | ||
+ | *Powered ''via'' outlet power; signal-copy only | ||
+ | *Also, carry plain RCA Y-cables and RCA female-to-female couplers | ||
+ | *Recommendation: [http://www.radioshack.com/product/index.jsp?productId=2103065 Distribution Amplifier] or similar | ||
+ | |||
+ | |||
+ | ===Audio Splitters=== | ||
+ | *Carry minijack Y-cables, XLR Y-cables, TRS connectors, and 1/4 inch to 1/8 inch headphone converters | ||
+ | *Audio splitting is also possible from the soundboard | ||
+ | |||
+ | |||
+ | ==Scan Converters== | ||
+ | *Many scan converters do not support higher resolutions commonly used with high-end projectors; [[:wikipedia:UXGA|UXGA (1600x1200)]] support or higher recommended | ||
+ | *Custom menu options available, such as border cropping, freeze-frame, zoom, ''etc.'' | ||
+ | *Recommendation: [http://www.kramerelectronics.com/products/model.asp?pid=398 Kramer VP-501xl] (4:3 NTSC) or [http://www.kramerelectronics.com/products/model.asp?pid=585&sf=103 VP-701xl] (4:3 or 16:9; not yet tested) | ||
+ | :Special notes: these devices can warm with usage; be mindful not to tape over ventilation holes | ||
+ | |||
+ | |||
+ | ==Monitors== | ||
+ | *Can be used to check and configure scan converters; "monitor" is not used in the "computer monitor" sense | ||
+ | *Often can be set to record audio/video input | ||
+ | Recommendation: [http://www.cowonglobal.com/product_wide/product_A2_feature.php Cowon A2] (records to WMV) or [http://www.cowonglobal.com/product_wide/product_A3_feature.php Cowon A3] (not tested) | ||
+ | :Special note: A/V input cables must manufactured by Cowen | ||
+ | |||
+ | |||
+ | ==Mixers== | ||
+ | ===Audio=== | ||
+ | *Also known as a soundboard, hopefully already present and mic-tested | ||
+ | |||
+ | ===Video=== | ||
+ | *Generally these are expensive, bulky devices. Technically [http://www.radioshack.com/product/index.jsp?productId=4023695 optional], they offer clean video switching (read: transitions) | ||
+ | *Aspect ratio switching and picture-in-picture may be possible | ||
+ | *Recommendation: [http://www.edirol.com/index.php/en/products-mainmenu-421/video-mixing-mainmenu-386/lvs-400 Edirol LVS-400] or similar | ||
+ | |||
+ | |||
+ | ==Auxiliary Video== | ||
+ | *Another video source can be mixed-in here (''e.g.'', from a 2nd camera) | ||
+ | |||
+ | |||
+ | ==Cameras== | ||
+ | *Must have composite video-out | ||
+ | *High-definition vs. standard | ||
+ | *Tape vs. solid state; all-day recording | ||
+ | *Backup recording | ||
+ | *Audio-in | ||
+ | *Time drift problem | ||
+ | *Zoom range | ||
+ | *Suitable tripod | ||
+ | |||
+ | |||
+ | ==Cameraperson== | ||
+ | *Present vs. non-present | ||
+ | *Approachability | ||
+ | |||
+ | |||
+ | ==Audience== | ||
+ | *Mic'd vs. non (for audience questions) | ||
+ | *Wireless connectivity, competition for outlet power (gaffers tape) | ||
+ | *Reserved areas, tablecloths | ||
+ | *Pan-ability | ||
+ | ===Online audience=== | ||
+ | *Question/feedback submission mechanism and designated #hashtags | ||
+ | *Back-channel communication ("move the camera that-a-way") | ||
+ | *Use Herdict to report video loading problems: | ||
+ | :[http://www.herdict.org/web/participate/reporter?singleUrl=yoursite.com/live/ http://www.herdict.org/web/participate/reporter?singleUrl=yoursite.com/live/] | ||
+ | |||
+ | |||
+ | ==Encoder== | ||
+ | *Needs to have a video capture mechanism: FireWire input or a composite video capture device | ||
+ | *Dedicated internet bandwidth, firewall ports open to ''inbound traffic'' for Flumotion and SSH | ||
+ | *Laptops (USB/FireWire video) vs. mini-machines (USB/FireWire/PCI capture cards) | ||
+ | *Recommendations: | ||
+ | :Shuttle SG31G2V2 running Linux with an Osprey 210 Capture Card (bttv insmod args set to 'card=89'; no audio support here) | ||
+ | :>2.2GHz ThinkPad laptop with a USB video capture dongle (not tested) | ||
+ | |||
+ | |||
+ | ==Distribution== | ||
+ | *Plan on having 300-kbps-up ''dedicated'' bandwidth for each video stream | ||
+ | *Mobile broadband can be used if necessary, but Ethernet connections are more reliable | ||
+ | ===VLC + Icecast=== | ||
+ | *Documented at [http://en.flossmanuals.net/TheoraCookbook/VLCStreaming TheoraCookbook] | ||
+ | *Commercial Icecast hosting is available [evaluating best options now] | ||
+ | ===ffmpeg2theora + Icecast=== | ||
+ | *Currently, ffmpeg2theora only accepts FireWire audio, so this is non-viable for streaming composite video | ||
+ | ===Flumotion=== | ||
+ | *Not an easy DIY option due to software complexity, but a good custom option if working with Flumotion directly | ||
+ | |||
+ | |||
+ | ==Page embedding== | ||
+ | *Load balancing: client-side ''vs.'' server side | ||
+ | |||
+ | |||
+ | ==Projectors== | ||
+ | *Expensive | ||
+ | *Recommendation: Proxima [http://www.askproxima.com/products/projectors/M6/index.htm M6] or [http://www.askproxima.com/products/projectors/M9/index.htm M9] may be good choices | ||
+ | |||
+ | |||
+ | ==Lighting== | ||
+ | *Fill lighting is easy to accomplish, but stage lighting is difficult | ||
+ | *Heavy, fragile equipment: sandbags, tall stands often needed | ||
+ | *Liability concerns with heavy equipment | ||
+ | *Possible recommendations: | ||
+ | :[http://www.bhphotovideo.com/c/product/72020-REG/Arri_531600_650_Watt_Plus_Tungsten.html Arri 650 Watt Plus Tungsten Fresnel] or similar | ||
+ | :[http://www.colorkinetics.com/ls/ Phillips LED Lighting Solutions] | ||
+ | :Hire a professional lighting and stage crew | ||
+ | |||
+ | |||
+ | ==Power== | ||
+ | *Use a UPS | ||
+ | |||
+ | |||
+ | ==Reference Gearlists== | ||
+ | *[[User:openvideopro|Open Video Productions, L.L.C.]]: [[:File:Openvideopro_gearlist.pdf|PDF]], current as of 30-April-2010 |
Current revision as of 06:30, 17 August 2010
This page outlines a set of recommendations for recording a meeting using composite video, with slide mixing. Similar pages for video-casting stations, roving cameras, and audio capture are under preparation.
[edit] Speaker
- Properly attired, light makeup if heavy lighting is used
- Helpful to have the speaker tour the room beforehand and try a test run
- Send notification of archival video publication
- Recommendation: >200mW green laser pointer, carefully wielded
[edit] Presentation Laptop
- Presenters' laptops are not generally available beforehand, but it is helpful to send instructions on signal output expectations.
- Carry several different cable converters: Mini DisplayPort to VGA, DVI-to-VGA, miniDVI-to-VGA, etc.
- Recommendation: Thinkpad-style laptops; stay away from HDMI
- Special notes: In-room wireless bandwidth traffic spikes during presentations, so it is best to have on-podium Ethernet connections.
[edit] Splitters
[edit] VGA Splitters
- Powered via outlet power or USB
- No fancy features beyond signal duplication; these are hardware-only devices
- Recommendation: Gigaware 2-Port USB Powered VGA Splitter or similar
[edit] Composite A/V Splitters
- Powered via outlet power; signal-copy only
- Also, carry plain RCA Y-cables and RCA female-to-female couplers
- Recommendation: Distribution Amplifier or similar
[edit] Audio Splitters
- Carry minijack Y-cables, XLR Y-cables, TRS connectors, and 1/4 inch to 1/8 inch headphone converters
- Audio splitting is also possible from the soundboard
[edit] Scan Converters
- Many scan converters do not support higher resolutions commonly used with high-end projectors; UXGA (1600x1200) support or higher recommended
- Custom menu options available, such as border cropping, freeze-frame, zoom, etc.
- Recommendation: Kramer VP-501xl (4:3 NTSC) or VP-701xl (4:3 or 16:9; not yet tested)
- Special notes: these devices can warm with usage; be mindful not to tape over ventilation holes
[edit] Monitors
- Can be used to check and configure scan converters; "monitor" is not used in the "computer monitor" sense
- Often can be set to record audio/video input
Recommendation: Cowon A2 (records to WMV) or Cowon A3 (not tested)
- Special note: A/V input cables must manufactured by Cowen
[edit] Mixers
[edit] Audio
- Also known as a soundboard, hopefully already present and mic-tested
[edit] Video
- Generally these are expensive, bulky devices. Technically optional, they offer clean video switching (read: transitions)
- Aspect ratio switching and picture-in-picture may be possible
- Recommendation: Edirol LVS-400 or similar
[edit] Auxiliary Video
- Another video source can be mixed-in here (e.g., from a 2nd camera)
[edit] Cameras
- Must have composite video-out
- High-definition vs. standard
- Tape vs. solid state; all-day recording
- Backup recording
- Audio-in
- Time drift problem
- Zoom range
- Suitable tripod
[edit] Cameraperson
- Present vs. non-present
- Approachability
[edit] Audience
- Mic'd vs. non (for audience questions)
- Wireless connectivity, competition for outlet power (gaffers tape)
- Reserved areas, tablecloths
- Pan-ability
[edit] Online audience
- Question/feedback submission mechanism and designated #hashtags
- Back-channel communication ("move the camera that-a-way")
- Use Herdict to report video loading problems:
[edit] Encoder
- Needs to have a video capture mechanism: FireWire input or a composite video capture device
- Dedicated internet bandwidth, firewall ports open to inbound traffic for Flumotion and SSH
- Laptops (USB/FireWire video) vs. mini-machines (USB/FireWire/PCI capture cards)
- Recommendations:
- Shuttle SG31G2V2 running Linux with an Osprey 210 Capture Card (bttv insmod args set to 'card=89'; no audio support here)
- >2.2GHz ThinkPad laptop with a USB video capture dongle (not tested)
[edit] Distribution
- Plan on having 300-kbps-up dedicated bandwidth for each video stream
- Mobile broadband can be used if necessary, but Ethernet connections are more reliable
[edit] VLC + Icecast
- Documented at TheoraCookbook
- Commercial Icecast hosting is available [evaluating best options now]
[edit] ffmpeg2theora + Icecast
- Currently, ffmpeg2theora only accepts FireWire audio, so this is non-viable for streaming composite video
[edit] Flumotion
- Not an easy DIY option due to software complexity, but a good custom option if working with Flumotion directly
[edit] Page embedding
- Load balancing: client-side vs. server side
[edit] Projectors
[edit] Lighting
- Fill lighting is easy to accomplish, but stage lighting is difficult
- Heavy, fragile equipment: sandbags, tall stands often needed
- Liability concerns with heavy equipment
- Possible recommendations:
- Arri 650 Watt Plus Tungsten Fresnel or similar
- Phillips LED Lighting Solutions
- Hire a professional lighting and stage crew
[edit] Power
- Use a UPS
[edit] Reference Gearlists
- Open Video Productions, L.L.C.: PDF, current as of 30-April-2010