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Explains the reference tone is a sound recording for setting correct audio playback levels.
Illustrates adjusting speaker volume to achieve a 70dB pink noise reference level.
Steps to navigate the Nor140 device settings, starting with the 'SETUP' button.
Choosing the "Reference Tone" function from the Instrument menu via button 8.
Configuring reference tone settings like type (PINK), gain, and duration.
Activating the reference tone by pressing the .CAL button, noting its automatic end.
Locating and playing the recorded reference tone audio file using NorReview.
Positioning a sound level meter and adjusting speaker volume to match a previously noted level.
Guidance on ensuring the sound level meter reading is as close as possible to the target without background noise.
Explains the reference tone is a sound recording for setting correct audio playback levels.
Illustrates adjusting speaker volume to achieve a 70dB pink noise reference level.
Steps to navigate the Nor140 device settings, starting with the 'SETUP' button.
Choosing the "Reference Tone" function from the Instrument menu via button 8.
Configuring reference tone settings like type (PINK), gain, and duration.
Activating the reference tone by pressing the .CAL button, noting its automatic end.
Locating and playing the recorded reference tone audio file using NorReview.
Positioning a sound level meter and adjusting speaker volume to match a previously noted level.
Guidance on ensuring the sound level meter reading is as close as possible to the target without background noise.
The Norsonic Nor140 is a precision sound analyzer designed for sound, vibration, and air solutions, often used in conjunction with Campbell Associates. This device serves as a reference tone generator and a sound level meter, crucial for establishing accurate audio playback levels and performing sound measurements.
The primary function of the Norsonic Nor140, as highlighted in the provided manual, is to generate a reference tone for calibrating audio playback levels. This reference tone is an internal sound recording, specifically pink noise, generated by pressing the "CAL" button on the device. Pink noise is a random signal with equal energy per octave, often described as sounding similar to radio static when tuning. The device is capable of generating this pink noise at a continuous sound level of approximately 70dB. This feature is vital for ensuring that audio recordings are played back at a consistent and accurate level, allowing listeners to perceive the loudness or quietness of a recording in the correct context, especially when evaluating noise complaints.
Beyond reference tone generation, the Nor140 functions as a comprehensive sound level meter. It can measure and display sound levels, allowing users to verify the output level of speakers or headphones. This is critical for setting up a listening environment where the playback level matches the intended reference, thereby standardizing the perception of sound. The device also supports recording measurements, which can then be downloaded and analyzed using software like NorReview or played back through standard media players.
While the manual does not explicitly list all technical specifications, several key parameters for the reference tone are provided:
The device itself is a handheld precision sound analyzer, as indicated by its display and button layout. It features a microphone for sound capture, a display screen for showing measurement data and menu options, and a keypad for navigation and control. The display shows various measurement parameters, including SPL (Sound Pressure Level), and can present data in a "Level vs Time" graph, allowing for visual analysis of sound level fluctuations over time.
The Norsonic Nor140 is designed for user-friendly operation, with a clear menu structure and dedicated buttons for various functions:
While the manual does not detail specific maintenance procedures, the design of the Norsonic Nor140 suggests several inherent maintenance considerations common to precision electronic instruments:
In summary, the Norsonic Nor140 is a specialized sound analyzer that excels in generating a calibrated reference tone (pink noise) for setting up accurate audio playback environments. Its capabilities as a sound level meter, combined with its user-friendly interface and data management features, make it an indispensable tool for professionals in acoustics, vibration, and air quality assessment, particularly when dealing with sound perception and noise complaints.
General| Brand | Norsonic |
|---|---|
| Model | nor140 |
| Category | Measuring Instruments |
| Language | English |
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