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Spectrum Analysis (SAN)

Optional Module for the KLIPPEL QC Framework

  • Spectrum analysis of any noise source
  • A-weighted sound pressure level
  • Frequency response with noise (white, pink) or any other test signal (e.g. music)
  • Incoherence analysis provides distortion assessment
  • Phase and polarity
  • Simple, universal, flexible
  • Use your favorite test signal
  • Noise & vibration testing

The Spectrum Analysis (SAN) is a versatile tool for the QC framework of the KLIPPEL Analyzer System dedicated to testing loudspeakers, audio systems or any sound emitting devices with no signal input. A white or pink noise generator is provided to measure characteristics like sound pressure spectrum, frequency response, A-weighted level and incoherence. You may use your own stimulus signal that can be imported as a wave file. Even when no test signal can be applied, you may evaluate the spectrum and level of any sound or noise sources and apply PASS/FAIL limits. The SAN is included in QC Standard Software and is available as a module for R&D applications. It is not available in QC Basic software.


    Hardware (Capture and/or playback hardware)
    KLIPPEL Analyzer 3 (KA3) 
    Production Analyzer (PA) or 3rd party audio interface (sound card)

    QC Standard from version 6.3 or R&D Software 210 or higher (+SAN license)

    • Microphones 
    • Amplifier or KA3 Amp Card (opt.)

    Application Notes

    Related Information

    Other Modules of the QC System
    Spectrogram 3D Limits (3DL):
      Powerful and intuitive defect (Rub & Buzz) analysis based on auditory time/frequency (spectrogram) analysis

    Related Products
    QC Standard Software (SPL Task, Manual Sweep):
      Full EOL-testing software for ultra-fast and complex measurements, incl. tasks (SPL, IMP, SAN, PP, IO), 
      QC Start and dB-Lab 210 
    Transfer Function Measurement (TRF):
      Measurement of transfer function and harmonic distortion
    Time Frequency Analysis (TFA):
      3D visualization tool vs time and frequency for impulse and time responses using wavelets, filter-bank or STFT 
    Live Audio Analyzer (LAA):
      Long-term monitoring of 5 signals simultaneously, examine time and frequency data, heating and ageing,
      measure distortion with music or arbitrary stimulus


    Consumer Electronics Association
    CEA-CEB19, CEA-803 R200X, CEA-2006-A, CEA-2019, CEA-2031, CEA-2034 (ANSI)

    International Electrotechnical Commission 
    IEC 60268-1, IEC 60268-3, IEC 60268-4, IEC 60268-5, IEC 60268-7, IEC 60268-16, IEC 60268-21, IEC 60268-22, IEC 61094-5, IEC 61305-5, IEC 61842, IEC WD 63034

    European Standards 
    BS EN 54-24, BS EN 50332

    Audio Engineering Society 
    AES2, AES17, AES56, AES X241

    Institute of Electrical and Electronics Engineers
    IEEE 269, IEEE 1206, IEEE 1329, IEEE 1652

    American National Standards Institute 
    ANSI S1.15-Part 1, ANSI S1.15-Part 2, ANSI S3.7, ANSI S3.22, ANSI S3.25, ANSI S12.42

    International Telecommunication Union 
    ITU-R Recommendation BS. 775-2, ITU-R Recommendation BS. 1116, ITU-R Recommendation BS. 1534-1, ITU-T Recommendation P.79

    International Organization for Standardization 
    ISO 266, ISO 4869-3

    Telecommunications Industry Association 
    TIA-470, TIA-810, TIA-920

    American Society for Testing and Materials
    ASTM F2504-05