لایه پخش آزمایش (LSL) برای همزمان‌سازی چندین جریان داده

روشنایی راندنیا

۹ مهر ۱۴۰۴

به اشتراک گذاری:

توسط روشینی راندنیا و لوکاس کلینه

عملیات:
وقتی این اسکریپت در خط فرمان اجرا می‌شود، بلافاصله یک جریان LSL را آغاز می‌کند. هر زمان که کلید 'Enter' زده شود، یک تریگر ارسال کرده و یک فایل صوتی پخش می‌کند."""

واردات sounddevice به عنوان sd
واردات soundfile به عنوان sf
از pylsl وارد کردن StreamInfo، StreamOutlet

def wait_for_keypress():
print("برای شروع پخش صدا و ارسال یک نشانگر LSL، ENTER را فشار دهید.")

while True: # This loop waits for a keyboard input
    input_str = input()  # Wait for input from the terminal
    if input_str == "":  # If the enter key is pressed, proceed
        break

def AudioMarker(audio_file, outlet): # تابعی برای پخش صدا و ارسال نشانگر
data, fs = sf.read(audio_file) # بارگذاری فایل صوتی

print("Playing audio and sending LSL marker...")
marker_val = [1]
outlet.push_sample(marker_val) # Send marker indicating the start of audio playback
sd.play(data, fs) # play the audio
sd.wait()  # Wait until audio is done playing
print("Audio playback finished.")

if name == "main": # حلقه اصلی
# تنظیم جریان LSL برای نشانگرها
stream_name = 'AudioMarkers'
stream_type = 'Markers'
n_chans = 1
sr = 0 # نرخ نمونه برداری به 0 تنظیم شده چون نشانگرها نامنظم هستند
chan_format = 'int32'
marker_id = 'uniqueMarkerID12345'

info = StreamInfo(stream_name, stream_type, n_chans, sr, chan_format, marker_id)
outlet = StreamOutlet(info) # create LSL outlet

# Keep the script running and wait for ENTER key to play audio and send marker
while True:
    wait_for_keypress()
    audio_filepath = "/path/to/your/audio_file.wav"  # replace with correct path to your audio file
    AudioMarker(audio_filepath, outlet)
    # After playing audio and sending a marker, the script goes back to waiting for the next keypress</code></pre><p><em><strong>**By running this file (even before playing the audio), you've initiated an LSL stream through an outlet</strong></em><strong>. Now we'll view that stream in LabRecorder</strong></p><p><strong>STEP 5 - Use LabRecorder to view and save all LSL streams</strong></p><ol><li data-preset-tag="p"><p>Open LabRecorder</p></li><li data-preset-tag="p"><p>Press <em><strong>Update</strong></em>. The available LSL streams should be visible in the stream list<br> • You should be able to see streams from both EmotivPROs (usually called "EmotivDataStream") and the marker stream (called "AudioMarkers")</p></li><li data-preset-tag="p"><p>Click <em><strong>Browse</strong></em> to select a location to store data (and set other parameters)</p></li><li data-preset-tag="p"><p>Select all streams and press <em><strong>Record</strong></em> to start recording</p></li><li data-preset-tag="p"><p>Click Stop when you want to end the recording</p></li></ol><p><br></p><img alt="" src="https://framerusercontent.com/images/HFGuJF9ErVu2Jxrgtqt11tl0No.jpg"><h2><strong>Working with the data</strong></h2><p><strong>LabRecorder outputs an XDF file (Extensible Data Format) that contains data from all the streams. XDF files are structured into, </strong><em><strong>streams</strong></em><strong>, each with a different </strong><em><strong>header</strong></em><strong> that describes what it contains (device name, data type, sampling rate, channels, and more). You can use the below codeblock to open your XDF file and display some basic information.</strong></p><pre data-language="JSX"><code>

توسط روشینی راندنیا و لوکاس کلینه

عملیات:
وقتی این اسکریپت در خط فرمان اجرا می‌شود، بلافاصله یک جریان LSL را آغاز می‌کند. هر زمان که کلید 'Enter' زده شود، یک تریگر ارسال کرده و یک فایل صوتی پخش می‌کند."""

واردات sounddevice به عنوان sd
واردات soundfile به عنوان sf
از pylsl وارد کردن StreamInfo، StreamOutlet

def wait_for_keypress():
print("برای شروع پخش صدا و ارسال یک نشانگر LSL، ENTER را فشار دهید.")

while True: # This loop waits for a keyboard input
    input_str = input()  # Wait for input from the terminal
    if input_str == "":  # If the enter key is pressed, proceed
        break

def AudioMarker(audio_file, outlet): # تابعی برای پخش صدا و ارسال نشانگر
data, fs = sf.read(audio_file) # بارگذاری فایل صوتی

print("Playing audio and sending LSL marker...")
marker_val = [1]
outlet.push_sample(marker_val) # Send marker indicating the start of audio playback
sd.play(data, fs) # play the audio
sd.wait()  # Wait until audio is done playing
print("Audio playback finished.")

if name == "main": # حلقه اصلی
# تنظیم جریان LSL برای نشانگرها
stream_name = 'AudioMarkers'
stream_type = 'Markers'
n_chans = 1
sr = 0 # نرخ نمونه برداری به 0 تنظیم شده چون نشانگرها نامنظم هستند
chan_format = 'int32'
marker_id = 'uniqueMarkerID12345'

info = StreamInfo(stream_name, stream_type, n_chans, sr, chan_format, marker_id)
outlet = StreamOutlet(info) # create LSL outlet

# Keep the script running and wait for ENTER key to play audio and send marker
while True:
    wait_for_keypress()
    audio_filepath = "/path/to/your/audio_file.wav"  # replace with correct path to your audio file
    AudioMarker(audio_filepath, outlet)
    # After playing audio and sending a marker, the script goes back to waiting for the next keypress</code></pre><p><em><strong>**By running this file (even before playing the audio), you've initiated an LSL stream through an outlet</strong></em><strong>. Now we'll view that stream in LabRecorder</strong></p><p><strong>STEP 5 - Use LabRecorder to view and save all LSL streams</strong></p><ol><li data-preset-tag="p"><p>Open LabRecorder</p></li><li data-preset-tag="p"><p>Press <em><strong>Update</strong></em>. The available LSL streams should be visible in the stream list<br> • You should be able to see streams from both EmotivPROs (usually called "EmotivDataStream") and the marker stream (called "AudioMarkers")</p></li><li data-preset-tag="p"><p>Click <em><strong>Browse</strong></em> to select a location to store data (and set other parameters)</p></li><li data-preset-tag="p"><p>Select all streams and press <em><strong>Record</strong></em> to start recording</p></li><li data-preset-tag="p"><p>Click Stop when you want to end the recording</p></li></ol><p><br></p><img alt="" src="https://framerusercontent.com/images/HFGuJF9ErVu2Jxrgtqt11tl0No.jpg"><h2><strong>Working with the data</strong></h2><p><strong>LabRecorder outputs an XDF file (Extensible Data Format) that contains data from all the streams. XDF files are structured into, </strong><em><strong>streams</strong></em><strong>, each with a different </strong><em><strong>header</strong></em><strong> that describes what it contains (device name, data type, sampling rate, channels, and more). You can use the below codeblock to open your XDF file and display some basic information.</strong></p><pre data-language="JSX"><code>

توسط روشینی راندنیا و لوکاس کلینه

عملیات:
وقتی این اسکریپت در خط فرمان اجرا می‌شود، بلافاصله یک جریان LSL را آغاز می‌کند. هر زمان که کلید 'Enter' زده شود، یک تریگر ارسال کرده و یک فایل صوتی پخش می‌کند."""

واردات sounddevice به عنوان sd
واردات soundfile به عنوان sf
از pylsl وارد کردن StreamInfo، StreamOutlet

def wait_for_keypress():
print("برای شروع پخش صدا و ارسال یک نشانگر LSL، ENTER را فشار دهید.")

while True: # This loop waits for a keyboard input
    input_str = input()  # Wait for input from the terminal
    if input_str == "":  # If the enter key is pressed, proceed
        break

def AudioMarker(audio_file, outlet): # تابعی برای پخش صدا و ارسال نشانگر
data, fs = sf.read(audio_file) # بارگذاری فایل صوتی

print("Playing audio and sending LSL marker...")
marker_val = [1]
outlet.push_sample(marker_val) # Send marker indicating the start of audio playback
sd.play(data, fs) # play the audio
sd.wait()  # Wait until audio is done playing
print("Audio playback finished.")

if name == "main": # حلقه اصلی
# تنظیم جریان LSL برای نشانگرها
stream_name = 'AudioMarkers'
stream_type = 'Markers'
n_chans = 1
sr = 0 # نرخ نمونه برداری به 0 تنظیم شده چون نشانگرها نامنظم هستند
chan_format = 'int32'
marker_id = 'uniqueMarkerID12345'

info = StreamInfo(stream_name, stream_type, n_chans, sr, chan_format, marker_id)
outlet = StreamOutlet(info) # create LSL outlet

# Keep the script running and wait for ENTER key to play audio and send marker
while True:
    wait_for_keypress()
    audio_filepath = "/path/to/your/audio_file.wav"  # replace with correct path to your audio file
    AudioMarker(audio_filepath, outlet)
    # After playing audio and sending a marker, the script goes back to waiting for the next keypress</code></pre><p><em><strong>**By running this file (even before playing the audio), you've initiated an LSL stream through an outlet</strong></em><strong>. Now we'll view that stream in LabRecorder</strong></p><p><strong>STEP 5 - Use LabRecorder to view and save all LSL streams</strong></p><ol><li data-preset-tag="p"><p>Open LabRecorder</p></li><li data-preset-tag="p"><p>Press <em><strong>Update</strong></em>. The available LSL streams should be visible in the stream list<br> • You should be able to see streams from both EmotivPROs (usually called "EmotivDataStream") and the marker stream (called "AudioMarkers")</p></li><li data-preset-tag="p"><p>Click <em><strong>Browse</strong></em> to select a location to store data (and set other parameters)</p></li><li data-preset-tag="p"><p>Select all streams and press <em><strong>Record</strong></em> to start recording</p></li><li data-preset-tag="p"><p>Click Stop when you want to end the recording</p></li></ol><p><br></p><img alt="" src="https://framerusercontent.com/images/HFGuJF9ErVu2Jxrgtqt11tl0No.jpg"><h2><strong>Working with the data</strong></h2><p><strong>LabRecorder outputs an XDF file (Extensible Data Format) that contains data from all the streams. XDF files are structured into, </strong><em><strong>streams</strong></em><strong>, each with a different </strong><em><strong>header</strong></em><strong> that describes what it contains (device name, data type, sampling rate, channels, and more). You can use the below codeblock to open your XDF file and display some basic information.</strong></p><pre data-language="JSX"><code>

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