How is a sound recording test performed?
- 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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