Roles and Workflow

This section describes the various actors involved in a listening test project.

Roles

Several persons with a specific role take part to different steps of the project. Three roles are defined in the listening test project:

  • The project manager sets up and designs the project of a listening test that participants will undergo.

    Note: The project manager is sometimes called the experimenter. In some cases, the project manager and the operator are the same person.

  • The operator welcomes and gives oral instructions to the participants. He initializes and closes the test sessions. He exports the collected answers. In some cases, the project manager and the operator are the same person.

  • The participant completes a listening test session: the participant performs the tasks defined during the setup (listen, rate, answer questions etc.)

    Note: The participant is sometimes called the listener or the subject, in the psychoacoustics community.

Workflow

Three modes allow the project manager to set up, conduct and analyze a listening test :

During the Setup, the project manager:

  1. Creates a project (associated to a method).

  2. Types in information and commentsabout the test itself.

  3. Prepares the instructions sheet for the participants.

  4. Creates the Screens (response interfaces) for the participants.

  5. Completes the procedure by:

    1. loading sounds,

    2. describing the task performed by each participant in the instructions screen,

    3. setting the layout and progress rules of the screens,

    4. activating, and then setting optional parameters (training phase, pauses and repetitions).

  6. Validates the test as ready for conduction.

During the Test, the operator:

  1. Initializes a listening test session.

  2. Launches a listening test session for a new participant. The participant carries out the listening test session.

  3. Closes a session.

  4. Exports the collected answers.

During the Test, the participant:

  1. Listens to sounds.

  2. Rates sounds.

  3. Answers questions.

During the Analysis, the project manager:

  1. Creates an analysis project.

  2. Imports, and then organizes the collected results.

  3. Displays the results.

  4. Exports the analysis results.