@@ -9,13 +9,9 @@ This section contains Patient’s information such as Patient identification, Te
# Audio Configuration
This is used to setup the soundcard to be used for recording and playback. Note, only ASIO devices are supported at this time. PC computers provide very long device lists so you may have to go through this list carefully to identify the correct ASIO “device” for your soundcard. To help identify your list, after paste the following commands in the MATLAB command window:
For PC's we recommend using the portaudio3 configuration. This version of portauido, uses a single buffer for each stimulus/stimuli presentation and recording. The pseudo realtime GUI will update after each sweep. The benefit of portaudio3 is each sweep is analyzed with a finer resolution than the portauido option, which, at the cost of a relatively faster update, provides only coarse feedback on your data collection. Note, we've found that on most windows systems, the use of portaudio causes audio glitches in both playback and recording and is the reason why we suggest using portauido3 for windows systems. Mac systems can use either. Also note that the selection of either portaudio driver, provided you're not getting audio glitches, should not affect the post processing analysis, or recording quality.
For PC's we recommend using the portaudio3 configuration. This version of portauido, uses a single buffer for each stimulus/stimuli presentation and recording. The pseudo realtime GUI will update after each sweep. The benefit of portaudio3 is each sweep is analyzed with a finer resolution than the portaudio option, which, at the cost of a relatively faster update, provides only coarse feedback on your data collection. Note, we've found that on most windows systems, the use of portaudio causes audio glitches in both playback and recording and is the reason why we suggest using portauido3 for windows systems. Mac systems can use either. Also note that the selection of either portaudio driver, provided you're not getting audio glitches, should not affect the post processing analysis, or recording quality.
`format compact; otb; d = PsychPortAudio('GetDevices'); {d.DeviceIndex ;d.DeviceName}'`
This will create a vertical list with the DeviceIndex on the left and the DeviceNames on the right. Scroll through to find your device. When the proper ASIO device is selected, the number available output and input channels will be populated automatically with “1”. Select the number of input and output channels you wish to use. For OAEs this is typically 1 input channel and 1-2 output channels.
You may also choose specific input and output channels on all of the main I/O devices by pushing the Select Channels button. Place a checkmark by all the channels you wish to use and hit Apply. When closing out of the Configure I/O or DAQ pannels, make sure to save your settings.
Once you've selected an I/O module, select the appropriate device from the "Device" dropdown list. Next, select the number of input and output channels you wish to use. For OAEs this is typically 1 input channel and 1-2 output channels. You may also choose specific input and output channels on all of the main I/O devices by pushing the Select Channels button. Place a checkmark by all the channels you wish to use and hit Apply. When closing out of the Configure I/O or DAQ pannels, make sure to save your settings.
