You are here: Audio > Advanced Audio Configuration > Selecting a Microphone Device > Microphone Configuration

Blacboard Collaborate Logo

web conferencing

 Download the PDF

Microphone Configuration

The microphone configuration preferences vary slightly depending on which operating system you are on. Read the section below appropriate to your operating system.

Windows and Mac OS X 10.6 and Later

Set the microphone configuration preferences as follows:

  1. In the left pane of the Preferences dialog, select Microphone Settings under Audio/Video. The Microphone Settings preferences panel appears.

    Note: The available audio input line options will vary depending on your sound card.

    Audio Microphone Settings panel of Prefereces dialog

  2. Select your Microphone device from the input devices listed in the box. For a complete discussion about microphone devices, see Selecting a Microphone Device.

  3. Select the desired options:

    • (Mac only) Use System Default Device – Select this option if you want to use your system's default input device. Each time you change the system default it will change the microphone used by Blackboard Collaborate.
    • Cancel echo between microphone and speakers – Select this option if others are reporting an echo from your audio transmission. (Echoes occur when the sound from your speakers is being picked up by your microphone and retransmitted.) By default, this option is enabled.
    • Adjust microphone volume automatically (up and down) – Select this option to enable Audio to automatically increase the microphone signal level when the volume is too low and decrease the microphone signal level when the volume is too high. By default, this option is enabled.

      For further details, see Microphone Configuration.

    • Transmit all sound, even when it appears to be silence – Select this option if you want audio transmission to continue in times of silence. By default, this option is disabled.

      For further details, see Microphone Configuration.

    • Microphone Sample Rate – Select a sample rate from the option menu if your microphone is being shared with other applications.

      For further details, see Microphone Configuration.

  4. Click on OK to save your preferences and close the Preferences dialog, Apply to save your preferences and leave the Preferences dialog open or Cancel to close the Preference dialog without saving any of your changes.

When you configure preferences, Blackboard Collaborate web conferencing will remember the settings each time you join another session on the same computer.

Note: You can restore your preference settings to the default. For details on restoring default preferences, see Restoring Default Preference Settings.

Linux and Mac OS X 10.5 and Earlier

Set the microphone configuration preferences as follows.

  1. In the left pane of the Preferences dialog, select Microphone Settings under Audio/Video. The Microphone Settings preferences panel appears.

    Note: The available audio input line options will vary depending on your sound card.

    Audio Microphone Settings panel of Prefereces dialog

  2. Select your Microphone device from the input devices listed in the box. For a complete discussion about microphone devices, see Selecting a Microphone Device.

  3. Select the desired options:

    • (Mac only) Use System Default Device – Select this option if you want to use your system's default input device. Each time you change the system default it will change the microphone used by Blackboard Collaborate.
    • Amplify quiet sounds from microphone dynamically – Select this option to enable Audio to automatically increase the microphone signal level when the volume is too low. By default, this option is enabled.

      For further details, see Microphone Configuration.

    • Adjust volume automatically to limit distortion – Select this option to enable Audio to automatically reduce the microphone signal level when the signal peaks are excessive (volume is too high). By default, this option is enabled.

      For further details, see Microphone Configuration.

    • To optimize the Adjust volume automatically to limit distortion control, select the type of microphone you are using.
      • Microphone used by a single person: Select this option if using a headset or a microphone just for yourself.
      • Microphone used by multiple people: Select this option if using a single microphone to pick up multiple talkers. This is the default.

      Note: The first time you open the Microphone Settings preferences panel, it may appear that Microphone used by a single person is the default. This will be the case if you earlier selected Single Talker in the Audio Setup Wizard; the Microphone Settings preferences panel inherits this setting from the Audio Setup Wizard.

    • Transmit all sounds, even when it appears to be silence – Select this option if you want audio transmission to continue in times of silence. By default, this option is disabled.

      For further details, see Microphone Configuration.

    • Microphone Sample Rate – Select a sample rate from the option menu if your microphone is being shared with other applications.

      For further details, see Microphone Configuration.

  4. Click on OK to save your preferences and close the Preferences dialog, Apply to save your preferences and leave the Preferences dialog open or Cancel to close the Preference dialog without saving any of your changes.

When you configure preferences, Blackboard Collaborate web conferencing will remember the settings each time you join another session on the same computer.

Note: You can restore your preference settings to the default. For details on restoring default preferences, see Restoring Default Preference Settings.