I. Before Measuring: Two things need to be done before you go out to take measurements:

1. 1. Download the free sound spectrum app: "Spectroid" (for Android) or "Sonic Tools SVM" (for iPhone).

   2. Send email to log@ieee.org with: i) person/group name who will measure, ii) park/trail/area you intend to measure.

II. Measure: When you're ready to measure a sound, turn on the sound spectrum app and read the power spectrum display. Examples are shown below.

1. The plot will jump around with the sounds but estimate the peak loudness on the vertical scale in dB.

2. Estimate the frequency at that peak on the horizontal scale in Hz.

1. 3. Is it white noise or a strong peak? The spectrum for white noise will be fairly flat for, say 100-500 Hz or so.  A strong peak, like for a bird or bell or insects, might have harmonics; record the lowest frequency peak.

III. Upload Data: 

1. Go to Form to upload measurements, which will ask for your sound measurements. It will also ask if it's ok to record your GPS position.

2. Please fill in the comment box with a short description of where you're at and the sound. 

We will map your measurements on the MySoundscape world map, attribute the measurement to your group, and let you know by email so you can see it.