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Portable NVH Sound Analyzer
Portable Measuring Systems



Voyager is a portable multi-channel sound analyzer that merges multiple functional units into one device. Data acquisition, signal conditioning and storage are combined into a powerful tablet unit suitable for sound and vibration data recording, NVH testing, acoustic troubleshooting and noise control.


  • Portable multi-channel sound analyzer
  • Built-in battery and internal storage capacity
  • Two modes: standalone or portable front-end
  • Embedded touch controlled software data analysis
  • Octave Bands, FFT, Spectrogram & Waveform
  • Real time audio filters
  • Compatibility with all Microflown probes
  • Compatible with up to 2 additional (IEPE) sensors


  • NVH testing
  • Noise source identification
  • Buzz, Squeak & Ratlle noise localization
  • Quality and End-of-Line Control
  • Sound leakage detection
  • Sound analysis
  • Sound Intensity
  • Sound Power

Simplifying testing times

The Voyager is a portable NVH testing device that merges multiple functional units like data acquisition, signal conditioning and storage into a powerful tablet device for vibro-acoustic data recording, visualization and analysis. The device interface is intuitive to operate and the modular applications enable easy usage by NVH experts and technicians alike. Inspired by the workflow operation, as daily used on mobile devises such as smartphones and tablets, a target was set to bring a similar approach and experience to the Voyager. Embedded software with touchscreen response allows an intuitive and user friendly operation for real-time audio playback and comprehensive sound analysis.

Besides conventional FFT and octave frequency analyses, the implementation of spectrogram analysis allows the user to also study non-stationary or transient noises. Targeted analysis with the help of real-time filters on a data channel optimizes the workflow and efficiency of the Voyager. The possibility of multi-channel extension up to 6 channels allows autonomous measurement with reference microphones or accelerometers to correlate and compare data measurements. Compatibility with the Microflown range of sensors ensures utilising the superior advantages of the Microflown, in terms of background noise cancellation and signal-to-noise ratio. This allows using it directly at the test location in presence of environmental sounds.




Input Channels 6 channels: 1 x LEMO 7-pin (4 channels) + 2 x BNC IEPE
Output Channels Stereo 3.5mm Jack
Other connectors Micro USB OTG, USB 2.0, Ethernet, DC power
CPU Quad Core 1 GHz
ADC resolution 24 bit
Input Voltage range ± 0.1 V, ± 1 V or ±10 V
Internal Memory 32 GB
Sampling Frequencies 8 kHz, 16 kHz, 24 kHz, 32 kHz and 48 kHz
Display 7 inch LCD Color TTL (800x480)
Operating temperature 0 °C to 40 °C
Storing temperature -10 °C to 50 °C
Physical | Voyager
Physical dimensions 225 mm x 135 mm x 40 mm
Weight 1.3 Kg
Power Supply & Battery
Nominal Power Supply 18 VDC
Battery type Lithium-ion
Battery capacity 4800 mAh | 34.6 Wh
Operating time 6 h