These are the most common methods for evaluating Hyfe performance. These tests are listed in increasing order of complexity; we recommend starting with Test 1 and working your way up as you see fit.
Test 1. Ideal conditions
Assess baseline performance in ideal conditions
Hold the phone close to your mouth (10cm - 30cm). Cough loudly 30 times, 20 seconds apart (for a total of 9 minutes of coughing).
Test 2. Effect of noise environments
Assess the impact of loud ambient noise on Hyfe performance
First, establish a baseline expectation (ideal conditions) using Test 1. Then conduct the Test 1 protocol in a noisy environment (e.g., a busy office space, an outdoor cafeteria, a pedestrian street, a city park, etc.).
Test 3. Device consistency
Compare Hyfe performance across multiple devices
Log in to two or more devices using separate HyfeIDs. Complete Test 1 a - b, making sure that both devices are held an equal distance from your mouth.
Test 4. Effect of carrying devices
Determine the effect of a carrying device on Hyfe performance
Carry out the Test 3 protocol, placing one device inside your carrying device (e.g., a necklace holder, arm band, waist bag, pocket, or purse). Use the second device as a “control” (not inside a carrying device). Make sure to note which device is used as the control.
Test 5. Effect of phone distance
Determine how far the phone can be from the user.
Carry out a truncated version of Test 1 at multiple distances from the phone:
- First, place your phone on a table or shelf and begin by standing very close to the phone (25 cm).
- Then produce your first round of coughs (10 coughs instead of 30, 10 seconds apart instead of 20).
- Move to your second distance (50 cm), wait 30 seconds, and repeat the cough procedure.
- Do this for several more distances (we suggest 25cm, 50cm, 1m, 1.5m, 2m, 3m, and 4m).
We recommend using two devices in this test: one device, the ‘test phone’ is the one placed on a table or shelf; the second device, the ‘control’, is carried by the participant and always held close to the mouth while coughing. Be sure to note which phone is the ‘test’ and which is the ‘control’.