LSL Outlet

Use the LSL Outlet mode to configure EMOTIV data streams that can communicate with other devices or 3rd party software.‌

Configuration

SETTING

DETAILS

Stream Name

Set the stream name for transmission

Device ID

This displays the Device ID for the selected device

Data Stream

Choose the data stream for transmission and select between EEG, Performance Metrics (PMs), Motion Data, Contact Quality (CQ) or EEG Quality (EQ), Band Power.

Number of channels

This displays the number of channels available for transmission (note this correlates to the number of channels available for that headset type)

Sample rate

This displays the sampling rate of the selected data stream (note this correlates to the sampling rate available for that headset type)

Data format

Choose the Data format for transmission as either Double/Float. However, If you choose Float format, only data value in range -16777216 to 16777216 are represented accurately (LSL doc). The Timestamp is not accurate because out of range. But others are fine.

Transmit type

Set the transmission type by selecting between Sample or Chunk.

For Chunk, you can set the Chunk size to be 4/16/32/64/128/256

Start

Click this button to start transmission

Stop

Click this button to stop transmission

Stream Outlet Information

Stream type

Stream name

Channel name list

Sample rate (Hz)

Notes

EEG

EmotivDataStream-EEG

["Timestamp", "Counter", "Interpolate",<EEG sensors> , "HardwareMarker", "Markers"]

128 or 256

depends on the headset and its settings

Description of EEG channels at link

The Markers channel is supported from version v3.0

Motion

EmotivDataStream-Motion

For newer EMOTIV headsets (support Quaternions):

["Timestamp", "Counter", "Interpolate", "Q0","Q1","Q2","Q3", "ACCX","ACCY","ACCZ", "MAGX","MAGY","MAGZ"] For older EMOTIV headsets: ["Timestamp", "Counter", "Interpolate", "GYROX","GYROY","GYROZ", "ACCX","ACCY","ACCZ", "MAGX","MAGY","MAGZ"]

32, 64, 128, depends on the headset and its settings.

6.4 hertz for MN8.

Description of Motion channels at link

Performance-Metrics

EmotivDataStream- Performance-Metrics

["Timestamp", "Engagement","Excitement","Focus","Interest ", "Relaxation","Stress"]

0.1 or 2 (high resolution)

Description of Performance metric at link If the detection cannot run because of a poor EEG signal quality then the value is -1 otherwise the range value from 0 to 1.0

Contact-Quality

EmotivDataStream- Contact-Quality

["Timestamp", "BatteryPercent" , "Overall", "Signal", <EEG sensors>]

2

Description of Contact Quality at link

The order of channels changes a bit compare with document in the link

EEG-Quality

EmotivDataStream- EEG-Quality

["Timestamp","BatteryPercent","Overall","SampleRateQuality", <EEG sensors>]

2

Description of EEG Quality at link

Band-Power

EmotivDataStream-Band-Power

["Timestamp", <EEG sensors/Band>]

8

Description of Band Power at link

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