Jg Ak Vid Wkshp Vsa Pt3 Equip

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VSA 2009 Video Taping Visitors Workshop
Josh Gutwill and Adam Klinger
Part 3: Human Subjects and IRB considerations
NOT PRESENTED AT VSA TO SAVE TIME

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  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Video Mini-DV tapCan record digital audio/video signal to tape and/or live digital output to computer and hard drive We recommend DV camcorders Excellent sound quality Video quality more than sufficient for research purposes Less expensive than hard drive or memory card based cameras Much less expensive than high definition camcorders Compatible with all digital video editing equipment and software Usually provide higher quality images than similarly priced non-tape based camcorders Can record to tape and output to computer at the same time for redundancy Standard DV format is very easy to edit and code, even on a slow computer Can be used for other purposes when not collecting data Disadvantages The transfer of recordings to a computer for analysis must be done in real time, either live or later in the lab. Video files use 13.6 GB per hour if not further compressed, not suitable for large datasets or long term storage. Any camera you purchase should have a mini phono-plug external microphone input if possible, a separate headphone jack for monitoring and troubleshooting A threaded ring to mount a wide angle adapter lens The ability to record to a tape and output analog or digital signals simultaneously (all consumer Sony mini-DV camcorders can do this. Reasonable low-light capabilities Don’t worry too much about Video quality- coding visitor behavior does not require h e based camcorder igh definition Assuming you can connect external microphones, all should have excellent audio quality Size- a larger, more conspicuous camcorder makes it more likely that the visitor will know they’re being recorded in the area. Battery life – you will want to use AC power in most situation Buy a less expensive consumer level camcorder that meets these criteria and save your budget for microphones!
  • Jg Ak Vid Wkshp Vsa Pt3 Equip

    1. 1. Recommended Recording Equipment <ul><li>In general, buy the right type of equipment but don’t waste your money on high end stuff </li></ul><ul><ul><li>We’re not making art films </li></ul></ul><ul><ul><li>Our environments are so full of noise that high fidelity equipment are just more accurate at picking it up </li></ul></ul>
    2. 2. Recommended Recording Equipment <ul><li>Getting usable audio is the most difficult part so plan to spend a large part of your budget there </li></ul>
    3. 3. Tape-based mini-DV Camcorder <ul><li>Advantages </li></ul><ul><ul><li>DV digital format has been a standard for over 10 years </li></ul></ul><ul><ul><li>Video quality is more than sufficient for research purposes </li></ul></ul><ul><ul><li>Excellent audio quality </li></ul></ul><ul><ul><li>Less expensive than most hard drive or card based camcorders </li></ul></ul><ul><ul><li>Compatible with all digital editing equipment and software </li></ul></ul>
    4. 4. Tape-based mini-DV Camcorder <ul><li>Disadvantages </li></ul><ul><ul><li>Transfer of videos to computer for coding is extremely slow and time consuming if done after the event </li></ul></ul><ul><ul><li>DV video takes a lot of space – 13.6 GB/hour </li></ul></ul><ul><ul><li>Large datasets will require compression to make file sizes manageable </li></ul></ul>
    5. 5. Essential camcorder features <ul><li>An external microphone input </li></ul><ul><li>A threaded ring to mount a wide angle adapter lens </li></ul><ul><li>The ability to record to a tape and stream live video to a computer simultaneously </li></ul><ul><li>Reasonable low-light capabilities </li></ul><ul><li>if possible, a separate headphone jack for monitoring and troubleshooting </li></ul>
    6. 6. Other video equipment <ul><li>Wide angle lens adapter </li></ul><ul><ul><li>Threads onto the end of the camera lens </li></ul></ul><ul><ul><li>Necessary when recording larger areas at a close distance </li></ul></ul><ul><ul><li>Different powers available </li></ul></ul><ul><ul><li>All wide-angle adapters introduce “fish-eye” distortion. The stronger the wide angle effect, the more distortion is created </li></ul></ul>
    7. 7. Video cables <ul><li>Firewire cable </li></ul><ul><ul><li>Transmits digital audio/video signals from camera to computer </li></ul></ul><ul><ul><li>Need a 4 pin connector for the camera end </li></ul></ul><ul><ul><li>Need a 6 or 9 pin connector for the computer </li></ul></ul><ul><ul><li>Cables can be run over 70’ </li></ul></ul>
    8. 8. Microphones for the floor <ul><li>Battery powered mics can be used with or without a mixer </li></ul><ul><li>Noisy museum environments require an array of highly directional microphones to record intelligible sounds </li></ul><ul><ul><li>Exploratorium uses an array of 4 short shotgun mics for recording exhibits on the floor </li></ul></ul><ul><ul><li>Wireless microphones also provide excellent audio when you only need to hear a few people </li></ul></ul>
    9. 9. Microphones: other types <ul><li>Cardioid mics are only somewhat directional and suitable for lab use </li></ul><ul><li>PZM / boundary microphones are attached to flat surfaces </li></ul><ul><ul><li>Highly sensitive </li></ul></ul><ul><ul><li>Cannot be used on vibrating surfaces </li></ul></ul><ul><ul><li>Often used to record meetings in conference rooms </li></ul></ul>
    10. 10. Audio Mixers <ul><li>Not required if you’re only using two battery powered microphones </li></ul><ul><li>Inexpensive mixers are OK </li></ul><ul><li>Should have 4 or more XLR inputs for microphones </li></ul><ul><li>Should provide “phantom power” for unpowered microphones </li></ul>
    11. 11. Camcorder Mic Adapters <ul><li>Allow connection of XLR microphone cables to a camcorder’s mic input </li></ul><ul><ul><li>Reduces strength of sound from a mixer so as not to overload the camera’s input </li></ul></ul><ul><ul><li>Some models provide “phantom power” for unpowered microphones to be used without a mixer </li></ul></ul><ul><li>Make sure that the adapter you purchase allows the tape door to open, or make a spacer for it </li></ul>
    12. 12. Audio Cables <ul><li>XLR cables connect each microphone to a mixer or camera adapter </li></ul><ul><ul><li>Can be run long distances without significant quality loss </li></ul></ul><ul><li>Short ¼” phono to XLR cables connect mixers to camera adapters </li></ul><ul><li>RCA cables like those that connect stereo components should be avoided due to interference issues </li></ul>
    13. 13. Video cables <ul><li>Firewire cable </li></ul><ul><ul><li>Transmit digital audio/video signals from camera to computer </li></ul></ul><ul><ul><li>Need a 4 pin connector for the camera end </li></ul></ul><ul><ul><li>Need a 6 or 9 pin connector for the computer </li></ul></ul><ul><ul><li>Cables can be run over 70’ </li></ul></ul>

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