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Psychtoolbox-3 - PsychPortAudio(‘Open’)
http://psychtoolbox.org/docs/PsychPortAudio-Open
device channel will be used for playback or capture of the i’th PsychPortAudio channel (the i’th row of your sound matrix). Numbering of physical device channels starts with zero! Example: Both, playback and simultaneous recording are requested and ‘channels’ equals 2, ie, two playback channels and two capture channels.
Psychtoolbox-3 - PsychPortAudio(‘OpenSlave’)
http://psychtoolbox.org/docs/PsychPortAudio-OpenSlave
master device channel will be used for playback or capture of the i’th PsychPortAudio channel (the i’th row of your sound matrix). Numbering of master device channels starts with one! Example: Both, playback and simultaneous recording are requested from a master device which represents a 16 channel soundcard with all 16 channels open.
Psychtoolbox-3 - PsychPortAudio
http://psychtoolbox.org/docs/PsychPortAudio
Psychophysics Toolbox Version 3 (PTB-3) is a free set of Matlaband GNU Octavefunctions for vision and neuroscience research. It makes it easy to synthesize and show accurately controlled visual and auditory stimuli and interact with the observer. A subset of its functionality is also available as part of Python based toolkits like PsychoPy. For commercial …
Psychtoolbox-3 - PsychPortAudio(‘Volume’)
http://psychtoolbox.org/docs/PsychPortAudio-Volume
PsychPortAudio(‘Volume’) Psychtoolbox>PsychPortAudio.{mex*} subfunction ... channel) will pass samples unmodified, a value of 0.5 would reduce intensity to 50%, a value of 1.25 would amplify to 125% of the original value, or a value of-1 would invert the signal.
Channel mapping in PsychPortAudio on MacOSX · Issue …
https://github.com/Psychtoolbox-3/Psychtoolbox-3/issues/232
Channel mapping in PsychPortAudio on MacOSX #232. PLu55 opened this issue Feb 6, 2015 · 2 comments Comments. Copy link PLu55 commented Feb 6, 2015. It could not select the proper channels I need to play a sound . When I try to select which audio channels to send signals to I get this strange message: "PTB-WARNING: Provided 'selectchannels ...
Psychtoolbox-3 - PsychPortAudio(‘GetAudioData’)
http://psychtoolbox.org/docs/PsychPortAudio-GetAudioData
Psychtoolbox-3. Psychophysics Toolbox Version 3 (PTB-3) is a free set of Matlab and GNU Octave functions for vision and neuroscience research. It makes it easy to synthesize and show accurately controlled visual and auditory stimuli and interact with the observer.
MAPLE Lab - Auditory Stimulus Timing in MATLAB
https://www.lrdc.pitt.edu/maplelab/matlab_audio.html
pahandle = PsychPortAudio('Open', [], 1, [], FREQUENCY, CHANNELS, [], 0.015); The first line sets up the sound driver, in general. The second line opens up a sound channel—a line of communication between your experiment and your sound card. (Opening up a sound channel is a lot like creating a screen using the Screenfunction.)
Issues with PsychPortAudio on macOS 11 - Programming Help ...
https://psychtoolbox.discourse.group/t/issues-with-psychportaudio-on-macos-11/4066
pahandle = PsychPortAudio (‘Open’, device, [], 0, freq, nrchannels); I did notice that PsychToolbox was not officially supported for macOS 11 so I’m not sure whether this is just a compatibility issue that I can’t resolve or if it could be fixed with a few changes to the script.
Introduction to PsychToolbox in MATLAB
http://www.jonaskaplan.com/files/psych599/Week6.pptx
Get audio data using PsychPortAudio('GetAudioData') Step 2: Open audio channel pahandle = PsychPortAudio('Open' [, deviceid][, mode] [, reqlatencyclass][, freq][, channels] [, buffersize] [, suggestedLatency][, selectchannels][, specialFlags=0]);
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