Advertisement

Testing Digital Recorders

  • Federico Miyara
Chapter
Part of the Modern Acoustics and Signal Processing book series (MASP)

Abstract

The proposal put forward in this book involves the acquisition of calibrated signals by means of a digital recorder to be later analyzed using computer software to get sophisticated mesaurements such as band spectrum or exceedance levels. However, the accuracy of the results is limited by the performance of the recorder. In this chapter we study the tests to be performed on the recorder to ensure it is suitable for its use as part of a measurment system, including the verification of its frequency response, effect of temperature, self-generated noise, linearity, transient response and uncertainty. Example results for a consumer digital recorder are also provided.

Keywords

Frequency Response Sine Wave Automatic Gain Control Nyquist Frequency Sound Meter 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Hewlett-Packard Company (1995) HP 974A multimeter user’s guide. http://cp.literature.agilent.com/litweb/pdf/00974-90002.pdf. Accessed 26 Feb 2016
  2. IEC 61672-1 (2002) Electroacoustics—sound level meters—Part 1: specifications. International Electrotechnical CommissionGoogle Scholar
  3. IEC 61672-2 (2003) Electroacoustics—Sound level meters—Part 2: Pattern evaluation tests. International Electrotehcnical CommissionGoogle Scholar
  4. ISO 1996-2 (2007) Acoustics—description, measurement and assessment of environmental noise—Part 2: determination of environmental noise levels. Geneva, SwitzerlandGoogle Scholar
  5. Miyara F, Accolti E, Pasch V, Cabanellas S, Yanitelli M, Miechi P, Marengo F, Mignini E (2010) Suitability of a consumer digital recorder for use in acoustical measurements. Internoise 2010. http://www.fceia.unr.edu.ar/acustica/biblio/consumer_recorders_for_noise_measurement_INTERNOISE_2010_993.pdf. Accessed 26 Feb 2016
  6. Stanford Research Systems (no date) Synthesized function generators—DS345 specifications. http://www.thinksrs.com/downloads/PDFs/Manuals/DS345m.pdf. Accessed 27 Feb 2016
  7. Zoom Corporation (no date) Handy recorder H4 operation manual. https://www.zoom.co.jp/sites/default/files/products/downloads/pdfs/E_H4v2_0.pdf. Accessed 27 Feb 2016

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Laboratorio de Acústica y ElectroacústicaUniversidad Nacional de RosarioRosarioArgentina

Personalised recommendations