# Ambisonic Dawn Chorus Field R... Source: https://notesgarden.com/publish/NAGi20DuG66m ## **🌦️** Before the weather window - [ ] Confirm permit, parking, and gate-access hours for the site - [ ] Check sunrise, first-light, and civil-twilight times against target bird activity - [ ] Review moon phase and overnight cloud cover if owls, frogs, or insects are part of the session goal - [ ] Reject the session if forecast wind at canopy height is likely to exceed your windshield limits - [ ] Check whether a large temperature swing is likely to produce a strong dawn chorus or heavy dew - [ ] Verify there are no scheduled forestry works, crop spraying runs, or trail events nearby - [ ] Scout one backup pull-off or footpath entrance in case the primary access point is occupied - [ ] Mark a quiet bailout location in your map app before leaving home A backup 200 to 400 meters away can save the session if a dog walker or generator appears at the main spot. - [ ] Download offline topo and satellite maps for the site - [ ] Write your file naming and spoken-slate convention on a notebook card Include date, location code, mic orientation, and take number so raw files stay sortable after multiple dawn sessions. ## **πŸŽ™οΈ** Microphone and rig prep - [ ] Match the ambisonic microphone calibration file to the exact mic serial number - [ ] Inspect shock-mount bands or lyres for cracks and permanent stretch - [ ] Tighten suspension knuckles, boom locks, and stand collars before packing the rig - [ ] Pack a fully dry windjammer and basket with no trapped seeds or leaf debris Old moisture inside wind protection often turns into handling-like rustle once air temperature rises. - [ ] Verify you packed every thread adapter needed for tripod, stereo bar, or stand conversion - [ ] Mount the mic so the A-format or front arrow actually points toward your intended scene anchor - [ ] Label the four XLR tails so channel order stays consistent from rig to recorder - [ ] Test all four channels for equal gain structure and similar self-noise - [ ] Flex each cable while monitoring to catch intermittent crackle before leaving - [ ] Pack silica gel, microfiber cloths, and a dry pouch for dew management ## **πŸ”‹** Recorder power and media - [ ] Format the primary SD card in the recorder, not on the computer - [ ] Format the backup card only after confirming the last session exists in two places - [ ] Set sample rate and bit depth to the actual delivery standard for this library or client - [ ] Lock the recorder date, time, and time zone before rolling any files - [ ] Disable any beeps, startup tones, or noisy touch feedback - [ ] Charge batteries as a matched set and label partial sets so they are not mixed in the field - [ ] Pack silent external power and route any cable so it cannot tap the tripod in wind - [ ] Estimate runtime with phantom-power draw and cold-weather margin included Four-channel phantom rigs can drop faster than expected during pre-dawn temperatures. - [ ] Silence or airplane-mode any phone that will stay near the rig - [ ] Record a 30-second bench test and play it back on headphones before departure ## **πŸ“** On-site placement - [ ] Arrive early enough to stand still in silence for at least two minutes before unloading - [ ] Map the direction of steady road noise, farm fans, streams, and early foot traffic - [ ] Place the rig away from dripping branches, loose gates, and resonant fence wire - [ ] Keep the microphone above the splash zone of wet grass and low brush - [ ] Aim the forward axis toward the scene element you want to read as front during decode - [ ] Press each tripod foot into stable ground and listen for creaks when weight shifts - [ ] Dress every cable loop so nothing can slap the stand or basket in a gust - [ ] Start with conservative preamp gain if corvids, pheasants, or geese may erupt nearby - [ ] Capture a spoken location slate before the final silent take Include habitat type, recent weather, and any off-axis noise source you noticed during setup. - [ ] Photograph the rig orientation and surrounding scene for later metadata and decode notes ## **⏺️** During the take - [ ] Monitor the first minute carefully for phase issues, handling noise, or intermittent channels - [ ] Leave at least one uninterrupted ten-minute take even if shorter highlight moments happen earlier - [ ] Log aircraft, dogs, chainsaws, and vehicle pass-bys with rough timestamps - [ ] Stop walking companions well away from the rig before you stop the recorder - [ ] Check for dew buildup visually without touching the basket or capsules - [ ] Capture one fresh wild track after any major disturbance clears A post-disturbance reset take is often the cleanest source for room tone and ambience bed editing. ## **πŸ“¦** Pack-down and archive - [ ] Record an end slate with weather changes and notable species heard after setup - [ ] Disable phantom power before unplugging the microphone loom - [ ] Cap the microphone before moving from cold outdoor air into a warm vehicle - [ ] Duplicate the cards before reformatting or renaming anything - [ ] Store the calibration file beside the raw audio folder for the session - [ ] Write the intended decode target, such as AmbiX or FuMa, into your session notes - [ ] Air-dry wind protection fully before sealing the case for storage - [ ] Review at least one full take at home before calling the outing successful Hidden cable ticks and RF bursts are easier to catch the same day while memory of the session is still fresh.