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kick bin: polarity |
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concept-10 
Young Croc 
Joined: 17 May 2016 Status: Offline Points: 1293 |
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 Posted: 13 November 2018 at 10:14pm |
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bee
Old Croc 
Joined: 14 June 2011 Location: Middlesex Status: Offline Points: 4553 |
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Posted: 13 November 2018 at 10:18pm |
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Exactly, were people go wrong in both look the same but don't act the same. flipping the phase by 180 degrees, only does so at the xover. were as polarity is the hole frequency spectrum. Also to add some management systems do have a polarity reverse button, some don't but have a phase flip button. a though to think over. if it was the done thing to do it by polarity flip button, why do all top selling brands, when needed do it at driver!!!! My advice ignor the people that say by pressing a button, they don't no what they are talking about. read this thread for some advance reasons, very well written. |
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https://www.elements-audio.com
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mojofilters
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Joined: 13 January 2018 Location: Tyne and Wear Status: Offline Points: 19 |
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Posted: 16 November 2018 at 2:56pm |
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It bugs me to see respected professional manufacturers labelling polarity inversion switches on products such as powered speakers, as "phase" inversion, flip or similar.
Likewise in marketing materials and manuals there is often a conflation or inconsistent use of what should be an easy precise terminology to get right. It doesn't seem like such a hard thing to do correctly, whilst wrongly using phase and polarity incorrectly just further perpetrates the common misunderstandings of less technical folks. I appreciate it seems pedantic to go around correcting this, but I'm sure it does no good in terms of the cause of furthering understanding of key basic fundamental terminology.
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Pasi
Old Croc
Joined: 25 April 2010 Location: Knutsford Status: Offline Points: 2732 |
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Posted: 16 November 2018 at 7:47pm |
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Polarity is instant, and swaps negative and positive around. Phase takes 2 signals and time difference. 2 so massively different things, and you can't fix one with the other. You need to know what you are doing and use the right correction.
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mojofilters
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Joined: 13 January 2018 Location: Tyne and Wear Status: Offline Points: 19 |
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Posted: 16 November 2018 at 8:51pm |
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Unfortunately my experience is that those who don't necessarily need and/or want to understand these concepts, allow their eyes to glaze over when I attempt to explain the difference - when the two terms are incorrectly used interchangeably. What's further frustrating is big manufacturers who misuse this terminology on products and documents. The MI sector is the worst, where alongside such labels are generic advertisements for sophisticated DSP such as FIR filters. If consumers are not expected to need to know the difference between phase and polarity, why would it matter if complex and inherently frequency-dependent delay-inducing linear phase digital filters have been added into an already complicated mix?
Edited by mojofilters - 16 November 2018 at 9:15pm |
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norty303 wrote: