SPL issue

Propeller Head Plaza

Technical and scientific discussion of amps, cables and other topics.

I have the original analog RadioShack SPL meter. Where I am sitting right now, this meter shows 58 dB, set to C-weighting, Slow.
The NIOSH SPL meter in my iPhone, with the same settings, shows 79 dB, which is clearly wrong. Before updating to iOS 18, it essentially agreed with the RadioShack meter reading. Another iPhone app also shows these inflated results.

So if you have upgraded to iOS 18, are you noticing the same 20 dB too-high SPLs on your phone?

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Schiit Audio

Topic - SPL issue - pbarach 06:54:48 09/18/24 (2)

RE: SPL issue - JonM 10:03:27 11/21/24 (1)

RE: SPL issue - pbarach 12:36:57 11/21/24 (0)

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