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<blockquote data-quote="dave briar" data-source="post: 140005" data-attributes="member: 7650">Re: SPL Alarm iPad/iPhone App ?Ivan is, as usual, correct in saying that the iDevices are limited to about 120 db (although Studio Six Digital says as of IOS 6 they have the ability to disable the hpf and limiter) but that is WAY over what I&#039;m willing to submit my hearing to anyway.&nbsp; I am, you see, but a lowly hobbyist and can choose what I expose myself (and &quot;my&quot; audiences) to.&nbsp; Likewise as Ivan notes the accuracy of the dbA measurement does start to fall off above 85db or so but its still fairly reproduce-able and so of reasonable accuracy at the 95-100 range my normal venue &quot;requires&quot;.&nbsp; So while an iDevice measurement is not accurate enough for engineering work it should suffice just fine for your stated use. Personally I find great value in having my iPad propped at the front rail of the mix booth at my normal venue with the AudioTools split screen RTA/Spectra display running. FWIW I&#039;ve been using dbA as a reference for quite a while but started getting complaints from the staff that they couldn&#039;t hear orders even when I was running at 95dbA so I looked and that often equated (with this PA in this room) to over 100 dbC -- ie. there was quite a bit of low end that the A range wasn&#039;t &quot;seeing&quot;.&nbsp; So I&#039;ve gone back to using dbC as a reference as it accounts for a bit more of what the staff objects to.&nbsp; Keeping things in the 95-100 dbC seems to keep everyone happy -- audience and management included. YMMV.&nbsp;&nbsp; ...dave</blockquote>

[QUOTE="dave briar, post: 140005, member: 7650"] Re: SPL Alarm iPad/iPhone App ? Ivan is, as usual, correct in saying that the iDevices are limited to about 120 db (although Studio Six Digital says as of IOS 6 they have the ability to disable the hpf and limiter) but that is WAY over what I'm willing to submit my hearing to anyway. I am, you see, but a lowly hobbyist and can choose what I expose myself (and "my" audiences) to. Likewise as Ivan notes the accuracy of the dbA measurement does start to fall off above 85db or so but its still fairly reproduce-able and so of reasonable accuracy at the 95-100 range my normal venue "requires". So while an iDevice measurement is not accurate enough for engineering work it should suffice just fine for your stated use. Personally I find great value in having my iPad propped at the front rail of the mix booth at my normal venue with the AudioTools split screen RTA/Spectra display running. FWIW I've been using dbA as a reference for quite a while but started getting complaints from the staff that they couldn't hear orders even when I was running at 95dbA so I looked and that often equated (with this PA in this room) to over 100 dbC -- ie. there was quite a bit of low end that the A range wasn't "seeing". So I've gone back to using dbC as a reference as it accounts for a bit more of what the staff objects to. Keeping things in the 95-100 dbC seems to keep everyone happy -- audience and management included. YMMV. ...dave [/QUOTE]

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