Category: Hearing Aid Electroacoustics

Movies Too Loud? Still?

Wayne Staab 1 Comment A-weighting / Analog hearing aids / C-weighting / CALMS / CCIR / Cinema / dBA SPL / Digital Signal Processing / Digital sound / Dolby / Dynamic Range (DR) / Feature film / Filmmakers / Frequency spectrum / Headroom / Hearing / Hearing damage / Hearing loss / Hearing protection / High sound levels / Interaural loudness difference / Leq(m) / Loud sounds / Loudness annoyance level / Loudness level / Loudspeaker / Movie / Movie trailer / Movies / Movies too loud / MPAA / NATO / Noise levels / OSHA 1983 / Phonautograph / SAWA / SLM apps / Sound mixers / Sound Pressure Level (SPL) / Sound quality / Soundtracks / TASA / Theaters / Total harmonic distortion (THD)

Movies too loud?  Do the high loudness levels of many movies help to tell the story, or are the high loudness levels provided to cover a weak story? – Snarky question by this article’s author   High Volume Story to Tell, or Weak Story to Hide?* Movie viewing has been enjoyed for decades. During this…

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Categorization of PSAPs?

Wayne Staab Leave a comment 2cc coupler / Amplification / Audiogram / Audiograms / Hearing / Hearing aid / Hearing aid battery life / Hearing Aid Fitting / Hearing aid manufacturers / Hearing aids / hearing impaired / Hearing professionals / Open Coupler / OTC / Personal Sound Amplification / PSAP / PSAP Standard / PSAPs / Real-Ear

This post is a continuation of two previous posts relating to a proposed PSAP “Standard” (OTC Hearing Aid Standard, and PSAP Standard Review).  This post relates to a section of the proposed “Standard” relating to the “categorization of PSAPs” (personal sound amplification products).1     Categorization – Criteria for Standardization It is not clear what…

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