How is a sound recording test performed?

Windows XP

  • For Headphone test, open the sound recorder by pressing the Start button, then Accessories, Entertainment, and finally Sound Recorder.
  • Click the record button to start recording.
  • Speak into the microphone in your hearing aid for about 10 seconds, and then click the Stop button.
  • To verify that the microphone in your hearing aid is working correctly, listen to your recording by pressing the Play button.


  • If the hearing aid works in the sound recorder but not in another software application.
  • The problem is isolated in your software application—contact application technical support for assistance.

Windows Vista and Windows 7

  • Click the Start menu, point towards Settings, and then click Control Panel.
  • Double click on the Sound icon.
  • On the Playback and other Recording tabs, select the Plantronics headset as the default device.
  • While in the Recording tab, speak and see the meter to the listed headset’s right as you talk into the microphone.
  • If the meter goes up and down as you talk, then the microphone is working.
  • On the Sounds tab, first, click one of the best sounds listed under Program Events and then click the Test button.
  • You should hear your chosen sound in the hearing aid.


  • Mac doesn’t have a sound recorder; however, it allows you to see the microphone’s input level.
  • Click the Apple logo in the upper-most left corner, and then click System Preferences.
  • And Click Sound
  • Click on the Input tab
  • Click on your Plantronics headset.
  • Speak into the microphone.
  • The entry-level should fluctuate as you speak.

Sound Headphone test troubleshooting

  • If you can’t get a good test, it may be because the hearing aid may be muted.
  • Tip: On some wired headphones, the muffler is located on the cable.
  • The volume may be set to very low in the Sounds and Audio Devices Properties window in the Windows Control Panel.
    You may have a loose USB connector.
  • In Windows XP, the Plantronics USB Audio device or headset is not selected as the default audio recording device.
  • The “Use only preferred, or default device” box is not checked.

What kinds of tests will you do in the audio lab?

  • UL will verify subsonic and ultrasonic (HD audio) performance demands by authenticating and evaluating quality measures.
  • Such as frequency response, THD, signal-to-noise ratio, phase, crosstalk, sample rate, and bit depth capability.

How will you perform the audio test?

  • To test HD audio quality, we run what we call an objective test.
  • During this test, we put a headset on a head and torso simulator.
  • The head and torso system measures the frequencies produced by the product.
  • For the subjective test, we will form a panel of 30 consumers and five chosen industry professionals.
  • Each participant must complete a questionnaire of approximately 40-50 questions while listening to different music types.
  • We then produce a report for the manufacturer that shows the results and what people think about the headphones’ sound quality.

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