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Psychtoolbox-3 - PsychPortAudio
http://psychtoolbox.org/docs/PsychPortAudio
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
‘reqlatencyclass’ Allows to select how aggressive PsychPortAudio should be about minimizing sound latency and getting good deterministic timing, i.e. how to trade off latency vs. system load and playing nicely with other sound applications on the system. Level 0 means: Don’t care about latency or timing precision.
PsychPortAudio('Fillbuffer') for continous stream paradigm ...
https://psychtoolbox.discourse.group/t/psychportaudio-fillbuffer-for-continous-stream-paradigm-please-help/3376
The reason a repetition value of zero seems to not work, is because of your. PsychPortAudio('Stop', pahandle, 1); call. You specify the ‘1’ flag to make it wait for sound playback to stop by itself, but a repetition value of 0 means to “repeat indefinitely” ie. never stop by itself, but only when playback is stopped manually via, e.g., a ‘Stop’ call.
PsychPortAudio('open') reports "unanticipated host error ...
https://www.mathworks.com/matlabcentral/answers/493103-psychportaudio-open-reports-unanticipated-host-error-or-invalid-device
PsychPortAudio('open') reports... Learn more about psychtoolbox, psychsound, psychportaudio
PsychPortAudio('GetAudioData'...) not returning timestamps ...
https://psychtoolbox.discourse.group/t/psychportaudio-getaudiodata-not-returning-timestamps/3197
Hello, I’ve just started using Psychtoolbox last week. I’m having an issue where the call to PsychPortAudio with ‘GetAudioData’ is returning bad data. If I run SimpleVoiceTriggerDemo.m, line 110: [audiodata offset overflow tCaptureStart]= PsychPortAudio('GetAudioData', pahandle); …the variables offset, overflow, and tCaptureStart …
Psychtoolboxをがんばる：心理学、実験、プログラミン …
https://sites.google.com/site/ptbganba/ptbno-komando-no-setsumei/yin-ting-jue-guan-xi/psychportaudio-start
startTime = PsychPortAudio('Start', pahandle [, repetitions=1] [, when=0] [, waitForStart=0] [, stopTime=inf] [, resume=0]); PortAudio デバイスを開始します。 'pahandle' は開始させるデバイスのハンドルです。 デバイスの開始は、次のことを意味しています。音の再生の開始、録音の開始、full duplex に対応したデバイスではその ...
MAPLE Lab - Auditory Stimulus Timing in MATLAB
https://www.lrdc.pitt.edu/maplelab/matlab_audio.html
The rest of the PsychPortAudio('Open') statement controls the exact properties of your sound channel. Most of these you can just leave as I've specified above. The properties you might want to change are: FREQUENCY is the frequency of your soundfiles (e.g., 44100 if the sound is recorded at 44100 Hz / 44.1 kHz). If you put in the wrong ...
Psychtoolboxをがんばる：心理学、実験、プログラミン …
https://sites.google.com/site/ptbganba/ptbno-komando-no-setsumei/yin-ting-jue-guan-xi/psychportaudio-open
pahandle = PsychPortAudio('Open' [, deviceid][, mode][, reqlatencyclass][, freq][, channels][, buffersize][, suggestedLatency][, selectchannels][, specialFlags=0]); PortAudio のデバイスを開いて初期化します。返り値は、そのデバイスを扱うためのハンドル（pahandle）です。 すべてのパラメーター（引数）はオプションで、適切な ...
Psychtoolbox-3/BasicSoundInputDemo.m at master - …
https://github.com/kleinerm/Psychtoolbox-3/blob/master/Psychtoolbox/PsychDemos/BasicSoundInputDemo.m
function BasicSoundInputDemo (wavfilename, voicetrigger, maxsecs, device) % BasicSoundInputDemo([wavfilename][, voicetrigger=0][, maxsecs=inf] [, device]) % Demonstrates very basic usage of the new Psychtoolbox sound driver % PsychPortAudio() for audio capture / recording. % Sound is captured from the default recording device, optionally waiting % until the …
Introduction to PsychToolbox in MATLAB
http://www.jonaskaplan.com/files/psych599/Week6.pptx
startTime = PsychPortAudio('Start', pahandle [, repetitions=1] [, when=0] [, waitForStart=0] [, stopTime=inf] [, resume=0]); Wait until this time to start playing (default is play now) Set to 0 to repeat indefinitely. set a time to stop playing. 0: Ask playback to start and move on. 1: wait for playback to actually begin.
Now you know Psychportaudio
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