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Estec LM 128P Standard AES/EBU

Estec LM 128P Standard AES/EBU

De Estec LM128P is een gecombineerde Loudness meter (LM) en Peak Program Meter (PPM). Standaard uitgevoerd met AES/EBU.
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The estec LM 128P is a combined Loudness Meter (LM) and Peak Program Meter (PPM) according to the following specifications:

  • EBU R 128 (September 2011)
  • ITU-R BS.1770-2 (March 2011)
  • EBU Tech Doc 3341 (August 2011)
  • EBU Tech Doc 3342 (August 2011) and
  • DIN IEC 60268-10


  • 1 AES/EBU digital input (XLR) for measurements of stereo signals
  • 1 Remote control connector for START/PAUSE/RESET function
  • Option: 3G-SDI input/output (BNC) carrying up to 4 stereo signals, each of which can be selected to be measured
  • Option: 2 analog inputs (2 x XLR, stereo)


The LM 128P offers various options for individual display and operation settings.

Two LED bars with 51 tricolor segments each:

LED bars in LM display mode:

  • Short Term Loudness (average value over 3 s)
  • Momentary Loudness (average value over 0.4 s)

LED bars in PPM display mode:

  • PPM values of the left and the right channel
  • Scale range from -50 dB to +6 dB, linear from -10 dB to +6 dB with 2 LEDs per dB
  • 20 dB gain applicable

Four-digit white numerical display:

  • Short Term Loudness
  • Integrated Loudness
  • Loudness Range
  • Selected measured values signaled by illuminated keys
  • Switchable between LU and LUFS


  • 3 LEDs +1, 0 and -1 to display L/R-correlation in 5 ranges
  • Yellow LED to display +20 dB gain in PPM display mode


The LM 128P is an inexpensive meter for studios wanting to meet the recommendations of EBU R 128 and to measure PPM values as usual at the same time – in the analog as well as in the digital world.

As stand-alone unit in line with the philosophy of the approved peak meters it is a powerful alternative: No additional PC is required and the relevant measured values are displayed reliably and conforming to standards.

Extra informatie


Artikelnummer M286-LM128P

MSV Artikel informatie

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