Setup

The speech audiometry settings are divided into four tabs.

Speech audiometry I	Sound sources for the test and non-test ear, selection of the transducers, and selection of the group and pauses.
Speech audiometry II	Speech audiometry: operation, maximum level, and keyboard operation.
Control earphone	Monitoring using a monitor phone that connects to the ACAM System.
CD-ROM	CD-ROM identification of audio CDs and CD controls.

Close this dialog with one of the following variants:

Click <Cancel>

Changes in settings are not applied. The audiometer keeps the same adjustments as it had at the start of the setup.

Click <Apply>

Changes in settings are applied. The audiometer runs now with the changed parameters.

Click X on the upper right corner

A message prompt appears with the option to either apply or not apply the changes. The message prompt opens up in a new window and states Store data? Click on yes to apply the changes. Click on no to discard the changes.

Speech audiometry I:

Signal source 1	Select the signal to be presented to the test ear. Audiometer setting right is the right ear, setting left is the left ear, and setting both sides is the right ear.
Signal source 2	Select the signal to be presented to the non-test ear. Audiometer setting right is the left ear, setting left is the right ear, and setting both sides is the right ear.
Start media player on external signals	When Extern 1 or Extern 2 is enabled, click the <Go> button to start the windows media player.
Transducer	You may select different transducers for <AC> (air conduction) and <FF> (free field.): For air conduction (AC): headphones (DT 48), open Headphones (K1000), insert phones or free field loudspeaker. Default setting is headphones (DT48) For free field (FF): loudspeaker, or open headphones (K1000). Default is loudspeaker.
Sentences	Select a male or female speaker to present the sentence test.
While measuring, don't show words	Disable feature so that columns of words are not displayed during a measurement
Repeats	Enable repeating the words to perform special tests (e.g. the Doering test). 1 repeat means that a word is repeated twice. Default is no repeat.
Break between words	Insert pauses between the repeats to avoid the repeats following one after another. Recommend a pause of 500 ms. Default is no pause.
Break at start	The break delays the start of the first speech signal of a group. The noise signal is enabled using the <Go> button and the first speech signal begins following the pause. Recommend a pause of 100 ms. Default is no pause.
Groups	In the Freiburg test, it is possible to disable speech unagreeable groups in the number and word test. These word groups are no longer displayed in the selection list. By clicking on the entry with the mouse, the group is either enabled (blue highlighted) or disabled (not highlighted).

Signal Source 1 and 2:

Enable several signal sources at the same time to have multiple signals mixed together on the channel.
Special simultaneous combinations are not possible.
Corresponding inputs of the ACAM control unit are enabled when extern 1 or extern 2 are selected. In this case, no signals from ACAM are presented using the sound card. This needs to be performed manually by playing sound files or connecting different external devices to the ACAM System inputs.
If you select CD using aux 1 or aux 2, it is possible to play CDs using the ACAM System. The ACAM System provides different options, please refer to the section: “Playing the CDs.”

Speech audiometry II:

Measuring ucl	Using numbers: numbers are preselected. Using words: words are preselected. May select a user-defined number or word group in the audiometry. This is only a preselection when selecting the <UCL> button.
Measuring mcl	Using numbers: numbers are preselected. Using words: words are preselected. May select a user-defined number or word group in the audiometry. This is only a preselection when selecting the <MCL> button.
Maximal level	It is possible to adjust the maximum level for the different transducers. It ensures the adjusted level cannot exceed the maximum level.
Talk back	Test ear on: the microphone signal is presented to the test ear. Non-test ear on: the microphone signal is presented to the non-test ear. Starting level: this is the level that is preselected the microphone is enabled for the first time. May change the level user-defined in the software. Default is: test ear on, non-test ear on, and starting level 65 dB.
Handling	Only mouse: the preset commands of the keyboard have no effect. All functions must be performed using a mouse. Only keyboard: the audiometer can be controlled using the keyboard. All keyboard commands are enabled. Mouse and keyboard: A combination of using both mouse and keyboard. Commands are performed using either the keyboard and/or mouse.
Counting	Counting 5% or 10%: every counting command (using mouse or keyboard) is rated with 5% or 10%. Grossing up: the number of the words understood are calculated in relation to the words already presented. Recommended if abbreviated word groups are presented. Examples: Example 1: a number was presented and evaluated as understood = 100%, because 1 of 1 word was understood. Example 2: a number was presented and evaluated as not understood = 50%, because 1 of 2 words was understood.
Pause key	The option: repeat word when pause is ended allows for the last word to be repeated again (pause key is disabled). If this option is disabled, the next word will be presented and the last word is not repeated.
Keyboard interruptions	Select whether or not an interruption of the signal should occur and how it will be performed.

Function of the interrupter:

The ACAM System has a software interrupter, which can be enabled using three different keys:

	Affects both channels (test ear and non-test ear)
	Affects the test ear
	Affects the non-test ear

Choose from three different options:

Switch off by held down key

Switches the signal off as long as the key is held down.
The signal is always switched on but may be interrupted using the key.

Switch on by held down key

The signal is switched on when the key is pressed.
The signal is always switched off and switched on when the key is pressed.

Key is not regarded

The key function is disabled and the signal is always switched on.
Pressing the key does not show any effect.

The interrupter functionality is also active when the operation with a mouse is selected.

Control Earphone:

If a monitor earphone is connected to the ACAM System control unit, select which channel of the ACAM System to hear using the monitor earphone.

Channel 1 (tested ear): the wanted signal is presented (e.g. words)
Channel 2 (opposite ear): the background signal is presented (mostly noise)
Channel 3 (microphone 1): the microphone signal used for talking to the listener (talk over).
Channel 4 (microphone 2): Rarely used microphone that allows for the transmission of the talk back microphone (from the listener to the user).

CD-ROM:

The ACAM System may also play CDs (optional).
A series of audio CDs are integrated in the ACAM System database. To play audio CDs in the ACAM System, it is recommended to insert the CD into the CD drive before starting the ACAM System.
For a detailed description of the CD play back in the ACAM System, please refer to the next section: “CD play back.”.