The test uses the procedures and terms described in
Levitt H. (1971) Transformed Up-Down Methods in Psychoacoustics
Here is a list of parameters needed by the test. This table lists only the parameters that have some special information about parameters or that override or adds new parameters to the common test parameters list.
Parameter | Value | Description | R/O |
---|---|---|---|
class | TAFC | A class alias (TAFC) or a fully qualified java class name (guinea.logic.TAFCTest) of the class that handles the TAFC test. | Req. |
The TAFC has some special parameters. Prepend parameter names with 'TAFC.' string, for example:
# pause length is two seconds TAFC.pauseLength=2.0Here is the list:
Parameter | Value | Description | R/O |
---|---|---|---|
ruleType | integer | The number of the rule that decides when to turn the direction. Currently rule number 1 is implemented. Default is 1. | Opt. |
answerName | questionID | The question ID to use for storing the answer. The default is 'level'. | Opt. |
pauseLength | seconds | The time to answering when sample pair has played. The answer decides whether to go to the same direction or change direction (depends on the rule). Default is 2 seconds. | Opt. |
initialLevel | volume | The initial volume level when this item starts. Both linear scale and dB scale can be used. Default is +0.0dB (1.0 linear). | Opt. |
stepSize | volume offset | The level step size. Both linear scale and dB scale can be used. The default is 3.0dB. | Opt. |
maxRuns | integer | Number of runs that is required. Default is 6. | Opt. |
logTrial | true or false | Whether to log each trial and answer for this item in addition to the final level. Default is false. | Opt. |
trialAnswerName | questionID | The question ID to use for the trial list of rach item if trials are logged. Default is 'trial'. | Opt. |
Parameter | Value | Description | R/O |
---|---|---|---|
B | sample ID | Sample ID of sample B. | Req. |
Ref | sample ID | Sample ID of the reference sample Ref. | Req. |
Here is an example of an B/Ref item:
# which sample is the B sample item3.A=pirr32 # which sample is the Ref sample item3.Ref=pirr44The items itemID is 'item3'.