Difference between revisions of "OLympus LS-100 Workshop"

Revision as of 14:07, 2 October 2013

Media Loan

• www.evergreen.edu/medialoan
• Bring your Evergreen ID with the current quarter sticker.
• Make a reservation for equipment, stop by Lib. 2504, or call (360) 867-6253.
• Test and confirm all equipment is in working order before leaving Media Loan.
• Media Loan has SEVERE LATE FINES. Return equipment on time, or call to make a renewal. Follow up with an appeal form to negate late fines.

Late Fines assessed daily, per item
Equipment valued over $250 — $20.00 per day
Equipment valued under $250 — $10.00 per day
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Equipment and accessories valued under $50 — $5.00 per day

• Microphone Basics
• Olympus LS-100 Operating Guide

Audio Basics

Levels

• Mic level: Microphones have a low level signal.
• Line level: Devices such as mixers, CD players, iPods are in the higher line level range.

• 

  LEVELS CHART

Microphones

• See the Microphone Basics article for more info.

Microphone Types

• Dynamic Mics
  • Can withstand louder noises, rugged pickup elements.
  • No power needed
• Condenser Mics
  • More sensitive to quieter noises, and more delicate pickup elements.
  • Needs power supplied through a battery, or through phantom power on the recorder.

Microphone Pickup Patterns

• Omni: picks up sound from all directions.
• Cardioid: picks up sound from front:
  • Proximity Effect: low frequencies are boosted as mic is closer to the source.
• Super-Cardioid: Picks up from front with a narrower pattern.

• 

  OMNI

• 

  BI-DIRECTIONAL

• 

  CARDIOID

• 

  SUPER-CARDIOID

• 

  HYPERCARDIOID

Microphones Categories

• Handheld
• Lavaliere: small clip-on attaches to clothing for vocal only recording.

Connector Types

1. XLR = for professional balanced microphones.
2. Mini or 1/8 inch = consumer microphones.

Mic Usage Tips

• Use a stand if possible to reduce noise (table, or floor)
• Listen for:
  • handling noise
  • proximity effect
  • popped p's
• Signal to noise ratio
  • The closer you are to your source with your microphone the higher the signal to noise ratio
  • The further away you are from your source the more unwanted noise gets into your recording.
• Perspective
  • Close up recordings produce isolated sounds which enhances the texture of certain objects and provides a narrow and close up perspective.
  • Recording at distances provides width and depth to your sounds which can provide clues to location, combined actions of objects, weather, ambiance, time of day, etc.

Media Loan Shopping List

• Olympus LS-100
• Mic cables
• Headphones
• Extension cables
• Desk stand, floor stand, microphone handle
• Microphones:
  • Recommended for vocal recording > SM-58, SM-57, Sennheiser 421, ECM-50 Lavolier

Olympus LS-100 Recorder

• Digital audio recorder that records to flash memory cards.
• It has 4 GB's on internal memory or you can use your own SD card.
• 96kHz/24 bit linear PCM recording.
• Two 90° stereo condenser microphones.
• Left & right XLR / phone combo inputs and a stereo mini mic input.
• When you are done you copy files off just like using a USB drive.

• Format the internal memory before use, and before returning to Media Loan.
• Menu Settings
• Olympus LS-100 Operating Guide

Record Settings

The settings below will set the recorder to use the XLR inputs with manual record level.

1. Menu > Record Mode > Normal.
2. Menu > Mic Gain > XLR (L) > LO.
3. Menu > Mic Gain > XLR (R) > LO.
4. Menu > Rec Level > XLR (L) > Manual > Limit/Comp Off.
5. Menu > Rec Level > XLR (R) > Manual > Limit/Comp Off.
6. Menu > Input Select > XLR/Phone.
7. Menu > Rec Format > PCM > 48.0 Khz / 24 Bit.
8. Menu > Low Cut Filter > 100Hz.
9. Menu > Pre-Recording > Off.
10. Menu > Rec Monitor > On.

Recording Exercise

Recording Tips

1. Select a controlled and quiet recording location.
2. Avoid noisy public locations (like restaurants, or areas near a road).
3. If possible, eliminate background noises (turn off stereos, TV’s, fans, air circulation vents). A room with carpeting and furniture will typically sound better than one with hard floors (too much echo).
4. It is recommended to record some "room tone" to be able to insert any pauses needed later in post-production.

Check the Settings

1. Insert tha battery.
2. Turn on recorder
3. Format card
4. Plug in headphones. Turn the Rec Monitor on.
5. Connect an external XLR mic to the recorder.
6. Set to record 48 Khz / 24 bit, manual record levels, and set the Limiter to off.
7. Set the Low Cut Filter to 100 Hz.

Make a Test Recording

1. Press Rec button once - this will go in record pause mode
2. Test the microphone placement, confirm if you are hearing the built in mic, or the external, any crackles, or hums, room noise, too close, too far away from the sound source?
3. Set levels with the record level controls on the right of the recorder. Levels should be the loudest around -12dB
4. Press Rec to start recording (counter will be running, record light will be solid)
5. Listen on the headphones
6. Press Stop to stop recording

Playback the Recording

1. Press the List button.
2. Use the + and - buttons to select a file and press OK.
3. The file name will be displayed in the window.
4. Press the Play button.

Copying Files

1. Connect provided USB cable to the computer.
2. Turn on the recorder.
3. The recorder should appear on the desktop as LS-100.
4. Copy files from the audio recorder to a computer as you would from a USB drive. Protect the privacy of your recordings by deleting all files on the recorder before returning equipment to Media Loan.
5. When finished click and drag the device icon to the trash before turning off the recorder.

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