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Loudness Meters: Absolute/Relative Scales …

Professional audio Loudness Meters display Program (Integrated) Loudness using an Absolute scale measured in LUFS. For example the EBU R128 Program Loudness target is -23.0 LUFS (Loudness Units Relative to Full Scale). In 2006 when the ITU defined new audio loudness measurement guidelines, the gener
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  • Julian Ludwig
  • May 28, 2016
  • 0 Comments
  • Audio Post / Loudness / Software / Tecnologia

Podcast Loudness Processing Workflow …

Below is Elixir by Flux. This is an ITU-R BS.1770/EBU R128 compliant multichannel True Peak Limiter. It’s just one of the tools available that can be used in the workflow described below. In this post I also mention the ISL True Peak Limiter by Nugen Audio. If you have any questions about these to
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  • Julian Ludwig
  • May 28, 2016
  • 0 Comments
  • Audio Post / Guias / Dicas / Loudness

Loudness Meter Descriptors …

In the recent article published on Current.org “Working Group Nears Standard for Audio Levels in PRSS Content”, the author states: “Working group members believe that one solution may lie in promoting the use of Loudness Meters, which offer more precision by measuring audio levels numerically.
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  • Julian Ludwig
  • May 28, 2016
  • 0 Comments
  • Artigos / Audio Post / Guias / Dicas / Loudness

Podcast Loudness: Mono vs. Stereo Perception …

Consider the following scenario: Two copies of an audio file. File 1 is Stereo, Loudness Normalized to -16.0 LUFS. File 2 is Mono, also Loudness Normalized to -16.0 LUFS. Passing both files through a Loudness Meter confirms equal numerical Program Loudness. However the numbers do not reflect an obvi
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  • Julian Ludwig
  • May 28, 2016
  • 0 Comments
  • Audio Post / Loudness / Tecnologia

Quantifying Podcast Audio Dynamics

I’ve discussed the reasons why there is a need for revised Loudness Standards for Internet and Mobile audio distribution. Problematic (noisy) consumption environments and possible device gain deficiencies justify an elevated Integrated Loudness target resulting in audio that is perceptually louder
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  • Julian Ludwig
  • May 28, 2016
  • 0 Comments
  • Artigos / Audio Post / Loudness / Software

AES “Recommendation for Loudness of Audio Streaming & Network File Playback.”

I’d like to share my observations and views on the recently published AES Technical Document AES TD1004.1.15-10 that specifics best practices forLoudness of Audio Streaming and Network File Playback. The document is a collection of Loudness processing guidelines for diverse platform dependent medi
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  • Julian Ludwig
  • May 28, 2016
  • 0 Comments
  • Artigos / Loudness / Software / Tecnologia

Loudness Measurements and Silence

Consider this: Two extended segments of audio, Loudness Normalized (or mixed in real time) to the same Integrated Loudness Target. Segment (A) is fairly consistent, with a very limited amount of intermittent silence gaps. Segment (B) is far less consistent, due to a multitude of intermittent silence
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  • Julian Ludwig
  • May 28, 2016
  • 0 Comments
  • Artigos / Audio Post / Guias / Dicas / Loudness / Software / Tecnologia

CNN and Program Loudness Tolerance

I recently analyzed a few of the internal Podcasts produced by CNN. One particular installment is yet another example of a major media outlet distributing audio that is in my view unsuitable for this particular platform. Let’s discuss file attributes and measured specs. for one of CNN’s distribu
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  • Julian Ludwig
  • May 28, 2016
  • 0 Comments
  • Artigos / Audio Post / Guias / Dicas / Loudness / Tecnologia

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