The emWave2 features a Coherence Reward Tone (Chime) to provide real-time auditory feedback. This allows users to practice with their eyes closed while still receiving confirmation that they are maintaining a coherent state.
How the “Phenomenon” Works
The chime is not triggered by a single moment of coherence, but rather by the accumulation of coherence points. Think of it like a digital “bucket” that fills up as you maintain a balanced heart rhythm. Once the bucket reaches the set limit, it “tips over” (the chime sounds), empties, and begins filling again.
-
High Coherence: You earn 2 points per interval. The “bucket” fills quickly, leading to frequent chimes.
-
Medium Coherence: You earn 1 point per interval. The chime occurs half as often as it does in High Coherence.
-
Low Coherence: You earn 0 points (and may occasionally lose a point). The chime will stop ringing until you return to a coherent state and begin accumulating points again.
Customizing the Chime Settings
The behavior of the reward tone can be customized to suit your preference. To make changes, you must connect your emWave2 to a Mac or PC and open the emWave2 software.
-
Connect the Device: Plug your emWave2 into a USB port.
-
Open Preferences: In the software menu, navigate to Edit (Windows) or emWave2 (Mac) and select Preferences.
-
Adjust Sound Settings: Look for the “Sound” or “Device” tab.
-
Volume: Adjust the loudness of the chime.
-
Point Threshold: Change how many points are required to trigger the chime (e.g., 10 for frequent feedback, 50 for a quieter session).
-
Mute: Disable the reward tone entirely if you prefer silent practice.
-
-
Save/Sync: Ensure you save the changes so they are applied to the handheld device for your next standalone session.
Troubleshooting
If you do not hear the chime:
-
Ensure the volume is turned up on the handheld device using the top sensor button.
-
Verify that you are successfully reaching Medium or High Coherence (indicated by the top light turning Blue or Green).
-
Check the software settings to ensure the Reward Tone has not been disabled.