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Psychtoolbox-3 - PsychPortAudio
http://psychtoolbox.org/docs/PsychPortAudio
PsychPortAudio - High precision sound driver for Psychtoolbox-3. PsychPortAudio is a special sound driver for PTB-3. It is a replacement for all other sound drivers and PTB’s old SND() function. PsychPortAudio provides the following features: Allows instant start of sound playback with a very low onset latency
Psychtoolbox-3 - PsychPortAudio(‘Open’)
http://psychtoolbox.org/docs/PsychPortAudio-Open
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.
Psychtoolbox-3 - PsychPortAudioTimingTest
http://psychtoolbox.org/docs/PsychPortAudioTimingTest
latency of the PsychPortAudio sound driver. This script configures the driver for low latency and high timing precision, then executes ten trials where it tries to emit a beep sound, starting in exact sync to a black-white transition on the display. You’ll need measurement equipment to use this: A photo-diode attached to
Psychtoolbox-3 - InitializePsychSound
http://psychtoolbox.org/docs/InitializePsychSound
This routine loads the PsychPortAudio sound driver for high-precision, low-latency, multi-channel sound playback and recording. Call it at the beginning of your experiment script, optionally providing the ‘reallyneedlowlatency’ flag set to one to push really hard for low latency. On MacOS/X and GNU/Linux, the PsychPortAudio driver will just ...
MAPLE Lab - Auditory Stimulus Timing in MATLAB
https://www.lrdc.pitt.edu/maplelab/matlab_audio.html
Now Psychophysics Toolbox will be using the ASIO driver. PSYCHPORTAUDIO SETUP: MAC. If you have a Mac, you already have a set of good sound drivers. But, you do have to set up PsychPortAudio the first time you use it. This is as simple as copying a …
Psychtoolbox-3 - PsychPortAudio(‘FillBuffer’)
http://psychtoolbox.org/docs/PsychPortAudio-FillBuffer
PsychPortAudio(‘CreateBuffer’, …). Its content must satisfy the same constraints as in case of passing a matrix. The content will be copied from the given buffer to the standard audio buffer, so it is safe to delete that source buffer if you want. ‘streamingrefill’ optional: If set to 1, ask the driver to refill the buffer
Migrating from ASIO support - Hardware - Psychtoolbox
https://psychtoolbox.discourse.group/t/migrating-from-asio-support/19
I will also mention that although due to licensing issues, Psychtoolbox PsychPortAudio driver does no longer support ASIO (Disclaimer: “ASIO is a trademark and software of Steinberg Media Technologies GmbH.”) specific features and tuning, our driver will allow basic use of any audio backend that is supported by the installed portaudio_x64 ...
Psychtoolbox-3/InitializePsychSound.m at master ...
https://github.com/Psychtoolbox-3/Psychtoolbox-3/blob/master/Psychtoolbox/PsychSound/InitializePsychSound.m
function InitializePsychSound (reallyneedlowlatency) % InitializePsychSound([reallyneedlowlatency=0]) % This routine loads the PsychPortAudio sound driver for high-precision, % low-latency, multi-channel sound playback and recording. % Call it at the beginning of your experiment script, optionally providing % the 'reallyneedlowlatency' flag …
Setting up a new audio rig - Hardware - Psychtoolbox
https://psychtoolbox.discourse.group/t/setting-up-a-new-audio-rig/3427
…suggests it works with direct ALSA access, which is exactly what our PsychPortAudio driver needs. Both posts suggest the JACK audio server had some problems with that device, but while PsychPortAudio can use the JACK audio server, by default we use ALSA for more low-level access, so those potential JACK problems don’t matter.
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