HPF
in [Live Sound]
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From: Eeyore on 13 Jul 2008 01:46 George's ProSound Company wrote: > "Phildo" wrote > > "Arny Krueger" wrote > > > >>> Define: Filter > >> > >>> A device that _removes_ something from whatever passes > >>> through it NO ! Filters can boost too. Even passive ones. That's basic electrical theory. > > >> > >> That would be a microphone - it removes highs and lows. > > silly me > I always refered to a microphone as a transducer > now arnii tells me its really a filter It's both a tranducer and a bandpass filter. Where do you think the -3 or -10dB numbers come from ? Out of thin air ? > when you be presenting your white paper on this one arnii? You'll find it all already in the AES archives. Even the microphone GRILLE acts partly as a filter. Graham
From: Denny Strauser on 13 Jul 2008 01:54 Eeyore wrote: > <snipped throughout> Filters can boost too. Even passive ones. > > Even the microphone GRILLE acts partly as a filter. And spit on the grille is a good example. :-) -Denny
From: Eeyore on 13 Jul 2008 02:06 Denny Strauser wrote: > Eeyore wrote: > > <snipped throughout> Filters can boost too. Even passive ones. > > > > Even the microphone GRILLE acts partly as a filter. > > And spit on the grille is a good example. :-) Damn ! Reminds me of the punk days. First thing after the show was over was to collect the vocal mics, rush to the gents, remove the grilles and wash them out and dry them. Uh ! Graham
From: liquidator on 13 Jul 2008 15:33 "George's ProSound Company" <bmoas(a)yahoo.com> wrote in message news:69f56$48793605$471fb991$27663(a)ALLTEL.NET... > > "Phildo" <Phil(a)phildo.net> wrote in message > news:063ek.13087$Zm1.177(a)newsfe27.ams2... > > > > "Arny Krueger" <arnyk(a)hotpop.com> wrote in message > > news:oqSdneWgc43mu2fanZ2dnUVZ_oWdnZ2d(a)comcast.com... > >>> Define: Filter > >> > >>> A device that _removes_ something from whatever passes > >>> through it > >> > >> That would be a microphone - it removes highs and lows. > > > silly me > I always refered to a microphone as a transducer > now arnii tells me its really a filter > > when you be presenting your white paper on this one arnii? > I want to be there > George > > There is a hole in Arny's theory almost as big as the one in his head. A microphine does NOT "pass audio". It changes it from mechanical to electrical. Theoretically the windscreen on the mic is a mechanical filter. But the mic itself is not. No way, no how. Just more Arny stupidity.
From: liquidator on 13 Jul 2008 15:39
"Eeyore" <rabbitsfriendsandrelations(a)hotmail.com> wrote in message news:487996A8.9AEAA3F2(a)hotmail.com... > > > George's ProSound Company wrote: > > > "Phildo" wrote > > > "Arny Krueger" wrote > > > > > >>> Define: Filter > > >> > > >>> A device that _removes_ something from whatever passes > > >>> through it > > NO ! Filters can boost too. Even passive ones. That's basic electrical > theory. > > > > > >> > > >> That would be a microphone - it removes highs and lows. > > > > silly me > > I always refered to a microphone as a transducer > > now arnii tells me its really a filter > > It's both a tranducer and a bandpass filter. Where do you think the -3 > or -10dB numbers come from ? Out of thin air ? > > > > when you be presenting your white paper on this one arnii? > > You'll find it all already in the AES archives. Even the microphone > GRILLE acts partly as a filter. > > Graham > Regarding it as a filter is pretty risky ground. Since the output is not the same type of energy as the input, it certainy is not primarily a filter. I suppose the system as a whole could be regarded as a filter, since it outputs sound sort of analagous to the input, minus whats lost in translation, with coloration added. But I have a really hard time considering the microphone itself s a filter, since the sound and the mic output can NOT be directly compared. BTW you certainly are correct about filters being able to add. |