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Topic: Cardioid

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	Cardioid - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-31)
		That is, a cardioid is a curve that can be produced as a locus — by tracing the path of a chosen point of a circle which rolls without slipping around another circle which is fixed but which has the same radius as the rolling circle.
		The cardioid is an inverse transform of a parabola.
		This cardioid is surrounded by a fractal arrangement of circles.
	www.sciencedaily.com /encyclopedia/cardioid (277 words)

	Xah: Special Plane Curves: Cardioid
		Cardioid is a special case of limacon of Pascal: a family of curves studied and named after Etienne Pascal (1588-1640), father of Blaise Pascal (1623-1662).
		Cardioid is the pedal of a circle with respect to a fixed point on the circle.
		Cardioid is also the conchoid of a circle of radius r with respect to a fixed point on the circle, and offset 2 r.
	www.xahlee.org /SpecialPlaneCurves_dir/Cardioid_dir/cardioid.html (787 words)

	Cardioid
		The cardioid, a name first used by de Castillon in a paper in the Philosophical Transactions of the Royal Societyin 1741, is a curve that is the locus of a point on the circumference of circle rolling round the circumference of a circle of equal radius.
		The pedal curve of the cardioid, where the cusp point is the pedal point, is Cayley's Sextic.
		The caustic of a cardioid, where the radiant point is taken to be the cusp, is a nephroid.
	www-groups.dcs.st-and.ac.uk /~history/Curves/Cardioid.html (288 words)

	cardioid
		the evolute of a cardioid is an(other) cardioid
		The cardioid is the envelope of the chords of a circle, between points P and Q, which follow the circle in the same direction, where one point has the double speed of the other.
		Then the cardioid is the envelope of the circles with as diameter the line through the origin and a point on C. The first to study the curve was Römer (1674), followed by Vaumesle (1678) and Koërsma (1689).
	www.2dcurves.com /roulette/rouletteca.html (332 words)

	Cardioid Lavaliers
		Cardioid Lavs are used for special situations and generally are not the typical lav mic.
		A cardioid lav can be a very useful addition to a wireless kit but it should be used only under relatively controlled conditions.
		Cardioids are fussy -- highly susceptible to wind noise and mechanical (handling) noise, and if they're not aimed precisely at the desired source of sound they're worse than omnis.
	www.cinematography.net /Pages%20DW/CardioidLavaliers.htm (1400 words)

	cardioid - Hutchinson encyclopedia article about cardioid (Site not responding. Last check: 2007-10-31)
		The cardioid is the curve formed when one circle rolls around the edge of another circle of the same size.
		The polar equation of the cardioid is of the form:
		This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
	encyclopedia.farlex.com /cardioid (125 words)

	Julia and Mandelbrot sets, alternate planes (Site not responding. Last check: 2007-10-31)
		The circles on the outside of the cardioid are inverted to circles on the inside of the teardrop.
		With this transformation, the cardioid is sent to the outside of a parabola.
		The circles on the outside of the cardioid are inverted to circles on the inside of the parabola.
	aleph0.clarku.edu /~djoyce/julia/altplane.html (859 words)

	Cardioid
		That is, a cardioid is a curve that can beproduced as a locus —; by tracing the path of a chosen point of a circle which rollswithout slipping around another circle which is fixed but which has the same radius asthe rolling circle.
		The cardioid is also a special type of limaçon : it is the limaçon with onecusp.
		The large, central, fl figure in a Mandelbrot set is a cardioid.This cardioid is surrounded by a fractal arrangement of circles.
	www.therfcc.org /cardioid-163967.html (218 words)

	Cardioid - LoveToKnow 1911 (Site not responding. Last check: 2007-10-31)
		CARDIOID, a curve so named by G. Castillon (1708-1791), on account of its heart-like form (Gr.
		It may be regarded as an epicycloid in which the rolling and fixed circles are equal in diameter, as the inverse of a parabola for its focus, or as the caustic produced by the reflection at a spherical surface of rays emanating from a point on the circumference.
		The polar equation to the cardioid is r=a(1-}-cos 0).
	42.1911encyclopedia.org /C/CA/CARDIOID.htm (165 words)

	ProSoundWeb \| How A Cardioid Microphone Works
		As if by magic, cardioid microphoness can pick up what they are aimed at, but reject sounds to the side and rear.
		Cardioids are the most popular choice for this reason.
		The cardioid mic is directional at high frequencies because its housing blocks high frequencies off-axis.
	www.prosoundweb.com /install/spotlight/cardioid/cardioidmics.shtml (651 words)

	Audio-Technica Microphones (Site not responding. Last check: 2007-10-31)
		Multi-pattern studio condenser microphone with switchable cardioid, omnidirectional and figure-of-eight polar patterns.
		Cardioid Condenser Boundary Microphone with Switch - White.
		Cardioid condensor extended-response, studio-quality vocal and instrument microphone.
	www.ggvideo.com /at_mic.htm (249 words)

	AUDIO-TECHNICA LAUNCHES NEXT GENERATION PRO SERIES MICROPHONES @ Music Gear Review
		The PRO 70 Cardioid Condenser Lavalier/Instrument Microphone is ideal for both vocal and acoustic guitar applications (clothing clip and guitar mount included).
		The PRO 37 Small-Diaphragm Cardioid Condenser Microphone is ideal for capturing acoustic guitar, overheads, piano, and group vocals.
		Employing a specially designed cardioid condenser capsule which reduces pickup of off-axis sounds, the PRO 37 provides professional accuracy for studio recording and live performance.
	www.musicgearreview.com /article-display/1165.html (908 words)

	MacleodsMusic.com presents Shure SM58S Cardioid Dynamic Microphone with On-Off Switch
		The Shure SM58 is a unidirectional (cardioid) dynamic vocal microphone designed for professional vocal use in sound reinforcement and studio recording.
		A cardioid pickup pattern isolates the main sound source while minimizing unwanted background noise.
		Uniform cardioid pickup pattern isolates the main sound source and minimizes background noise.
	www.macleodsmusic.com /products/SHUSM58S.html (457 words)

	Cardioid (Site not responding. Last check: 2007-10-31)
		Il cardioid, un nome in primo luogo usato da de Castillon in una carta nelle transazioni filosofiche del Societyin reale 1741, è una curva che è il luogo di un punto sulla circonferenza del cerchio che rotola intorno alla circonferenza di un cerchio del raggio uguale.
		La curva del pedale del cardioid, in cui il punto del cusp è il punto del pedale, è Sextic del Cayley.
		La sostanza caustica di un cardioid, in cui il punto radiante è preso per essere il cusp, è un nephroid.
	216.239.39.104 /translate_c?hl=it&ie=UTF-8&oe=UTF-8&langpair=en%7Cit&u=http://www-gap.dcs.st-and.ac.uk/~history/Curves/Cardioid.html&prev=/language_tools (314 words)

	Shure SM86 Cardioid Condenser Microphone - [Sam Ash]
		The Shure SM-86 is a unidirectional (cardioid) condenser vocal microphone for professional use in live performance.
		The Shure KSM141 is an end-addressed condenser microphone with mechanically switching dual polar patterns (cardioid and omnidirectional).
		The Shure KSM137 is an end-address condenser microphone with a cardioid polar pattern.
	www.samash.com /catalog/showitem.asp?ItemID=24332&TempID=3 (463 words)

	SOUNDELUX UNVEILS THE E250 CARDIOID TUBE VOCAL MIC AT AES-BERLIN - Hardware (Site not responding. Last check: 2007-10-31)
		HOLLYWOOD, CALIFORNIA: Conceived and designed purely as a vocal microphone, the Soundelux E250 cardioid tube condenser is a rethinking of classic tube microphone design to address the inherent problems with the modern practice of close-miking loud vocals.
		Classic tube condenser microphones were never meant to be placed within six-inches of loud vocalists, yet producers and engineers love the presence, size and low-frequency boost this adds to their artist's sound.
		Another problem with close miking vocals is high-frequency directionality or the "beaming effect." This is where any slight head movement by the singer can produce a big change in the high-frequency content.
	www.audiocourses.com /article-friend-377.html (705 words)

	Audio-Technica's revamped Pro Series at PLASA and summer NAMM 2004
		Recommended for amplified and acoustic instrument pickup as well as for vocals and spoken word, the PRO 63 Cardioid Dynamic Microphone features a Hi-ENERGY neodymium magnet structure, a cardioid polar pattern, and a two-stage headcase to reduce wind noise and popping.
		The PRO 35ax cardioid condenser clip-on instrument microphone is designed for pickup of sax, toms, brass, and percussion.
		The PRO 37 small-diaphragm cardioid condenser microphone is suitable for capturing acoustic guitar, overheads, piano, and group vocals.
	www.pro-music-news.com /html/02/e40728at.htm (817 words)

	AKG CGN521E 20" Cardioid Gooseneck Microphone (Site not responding. Last check: 2007-10-31)
		Cardioid polar pattern, 50 cm (20 in.) long, 125° pickup angle, Especially suited for inexperienced talkers, Connects easily via XLR connector.
		The cardioid polar pattern is the most popular because its uses are almost limitless.
		The 125° pickup angle is especially suited for inexperienced or very "vivacious" talkers who often fail to talk directly into the microphone.
	www.upstairs-records.com /sixstardj/akgcg20cagom.html (179 words)

	Audio-Technica : Midnight Blues Drum Packs
		The comprehensive MB/Dk6 Drum Pack expands on the MB/DK4 Drum Pack with the addition of two MB 4K cardioid condenser microphones ideal for drum overhead miking.
		Cardioid polar pattern reduces pickup of sounds from the sides and rear, improving isolation of desired sound source
		The cardioid dynamic MB 6k kick microphone has a frequency response of 60-12,000 Hz.
	www.audio-technica.com /cms/happenings/df848a7041c9572b/index.html (351 words)

	Lawson L47MP MKII Microphone
		To illustrate the usefulness of the infinitely variable multi-pattern feature, the graph below shows a response overlay of two intermediate patterns--wide cardioid (11 o'clock on the dial) and hyper cardioid (1 o'clock on the dial).
		The L47MP MKII omni, cardioid, and figure 8 frequency responses are illustrated here.
		When the cardioid only position is selected, the multi-pattern control on the power supply is disabled and the blue LED inside the windscreen is off.
	www.lawsonmicrophones.com /l47mp.html (499 words)

	Shure SM86 Cardioid Condenser Vocal Mic
		It's a uni-directional cardioid pickup pattern that rejects sounds from the sides and behind the mic element.
		This mic is made for really for voice and vocals and with the cardioid polar pattern it sounds just great and has a clear and crisp sound.
		Being like most cardioid condenser's it requires a +48VDC (+11VDC to +52VDC) phantom power source which is built-in most mixing boards.
	www.kellyindustries.com /microphones/shure_sm86_microphone.html (419 words)

	AKG C 451 B Cardioid Condenser Microphone
		For AKG, the C-451 C (the "C" suffix indicates a DIN connector; the "E" designates a standard XLR output) was the first solid-state condenser mic using the then-new Field Effect Transistor (FET) instead of a tube.
		The new capsule has the same cardioid polar pattern as the CK-1 because it has the same diameter and thickness.
		Even without EQ, both snare drums and hi-hats sound crisp, sharp and "open." The cardioid pickup pattern is not too tight, which provides plenty of ambience for a close-miked instrument, while I can hear more drummer subtleties such as grace notes and stick drags.
	www.barryrudolph.com /mix/akgc451b.html (1513 words)

	SHURE KSM27 Cardioid Condenser Microphone
		Shure made an impressive entry into high-end recording with the introduction of the KSM32 cardioid and KSM44 multipattern condenser mics.
		The tight cardioid response did an excellent job of rejecting major reflections from the rear of the big performance hall, leaving a nice balance of direct sound and close ambience, with just enough hall ambience.
		Reproduction in whole or in part in any form or medium without express written permission of IMAS Publishing Group is prohibited.
	www.proaudioreview.com /jan02/Shure_KSM_27.shtml (1025 words)

	Podium - Choir - Hanging
		Brief Description: The PRO 45W cardioid condenser hanging microphone offers versatile sound-reinforcement solutions for speech, theater, orchestra and choir sound reinforcement and recording....
		Shure MX412 Microflex Gooseneck - Cardioid Mic with Attached XLR Preamp, Shock and Flange Mount
		Shure MX418 Microflex Gooseneck - Cardioid Mic with Attached XLR Preamp, Shock and Flange Mount
	www.proacousticsusa.com /products.php?sId=74&page=2 (954 words)

	TecNec Distributing, The Wholesale Source
		Designed for easy replacement and available in cardioid, supercardioid and omnidirectional polar patterns, the interchangeable cartridges offer wide frequency response and accurate sound reproduction for a broad variety of applications, such as houses of worship, courtrooms and conference centers.
		MX418/C and MX418/S: 18in Cardioid Condenser Microphone(MX418/C) or Supercardioid (MX418/S) Microphone with Attached XLR Preamp, Shock Mount, Flange Mount and Snap-Fit Foam Windscreen.
		MX418S/C: 18in Cardioid Gooseneck Condenser Microphone, Attached XLR Preamp, Shock Mount, Flange Mount, Snap-Fit Foam Windscreen, Mute Switch and LED Indicator.
	www.tecnec.com /Product.asp?baseItem=MX418%2FC&cat=AUDIOEQUIP&subcat=MICS&prodClass=GOOSEMIC&mfg=Shure&search=0&off= (247 words)

	Shure SM58LC dynamic cardioid vocal microphone - BSW Professional Audio Gear
		It's also an effective tool in the studio, and the recording mic of choice for some vocalists who prefer the intimacy of a hand-held mic and value the familiar, distinctive sound of a 58.
		The SM58 is a cardioid dynamic vocal microphone designed for live performance, sound reinforcement, and studio recording.
		The unidirectional, cardioid pickup pattern isolates the main sound source while minimizing unwanted background noise.
	www.bswusa.com /prod_item.asp?item=SM58LC (298 words)

	ProSoundWeb \| WL51 Series Of Cardioid Mics From Shure (Site not responding. Last check: 2007-10-31)
		Shure's latest addition to its line of subminiature lavalier microphones is the WL51 Series, a product group comprising five new cardioid models.
		Designed for house of worship, theatre, event production and television broadcast use, the WL51 is intended for applications in which sound reinforcement systems create louder ambient environments that require the use of an inconspicuous, cardioid microphone.
		Weighing only.34 grams with a diameter of 5.8 mm, each WL51 model has a frequency response of 20 to 20 kHz, a dynamic range of 103 dB, maximum output of 138 dB SPL, and a low self-noise rating of 35 dB.
	www.prosoundweb.com /install/newproducts/shure51.shtml (178 words)

	Offer for Audio Technica Unipoint-Double Gooseneck Condenser Microphone
		Perfect for boardroom, school, government, house of worship and other installed applications, this double-gooseneck cardioid condenser microphone (12.2” long) with 5/8"-27 adapter-mount features an in-line power module.
		Double-gooseneck cardioid condenser microphone (19" long) with 5/8"-27 adapter-mount and in-line power module (battery/phantom).
		Double-gooseneck cardioid condenser microphone (18.5" long) with integral power module and XLRM quick-mount (non-interchangeable element).
	www.expandore.com /product/Audio_Technica/Unipoint/dble_gseneck_con.htm (129 words)

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