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Topic: Voice frequency

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	Voice frequency -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-07)
		A voice frequency (VF) or voice band is one of the frequencies, within part of the (The sound elements of television) audio range, that is used for the (Communication by means of transmitted signals) transmission of ((language) communication by word of mouth) speech.
		In (Transmitting speech at a distance) telephony, the usable voice frequency (Something elongated that is worn around the body or one of the limbs) band ranges from approximately 300 Hz to 3400 Hz.
		The voiced speech of a typical adult male with have a (The lowest tone of a harmonic series) fundamental frequency of from 85 to 155 Hz, and that of a typical adult female from 165 to 255 Hz.
	www.absoluteastronomy.com /encyclopedia/v/vo/voice_frequency.htm (269 words)

	Voice frequency - Wikipedia, the free encyclopedia
		A voice frequency (VF) or voice band is one of the frequencies, within part of the audio range, that is used for the transmission of speech.
		In telephony, the usable voice frequency band ranges from approximately 300 Hz to 3400 Hz.
		The voiced speech of a typical adult male with have a fundamental frequency of from 85 to 155 Hz, and that of a typical adult female from 165 to 255 Hz.
	en.wikipedia.org /wiki/Voice_frequency (228 words)

	Telephone voice frequency response system for message recording - United States Patent 4,122,307
		A voice frequency response system as claimed in claim 1, wherein said means for applying said specific code is a push button dial telephone circuit disposed in said terminal unit, and said specific code receiving means in said central voice frequency response device is a PB signal receiver.
		A voice frequency response system as claimed in claim 1, wherein said actuating signal is a three-frequency signal consisting of three frequencies in the voice frequency band, and said actuating signal detecting means in said terminal unit is a filter which separates said three-frequency signal from the transmitted voice information.
		The establishment of connection between the central voice frequency response device and the called terminal unit is detected in the trunk 18 of the central voice frequency response device shown in FIG.
	xrint.com /patents/us/4122307 (2143 words)

	Dual-tone multi-frequency - Wikipedia, the free encyclopedia
		No frequency is a multiple of another, the difference between any two frequencies does not equal any of the frequencies, and the sum of any two frequencies does not equal any of the frequencies.
		The frequencies were initially designed with a ratio of 21/19, which is slightly less than a whole tone.
		The high frequencies may be the same volume or louder as the low frequencies when sent across the line.
	en.wikipedia.org /wiki/DTMF (942 words)

	Read about Voice frequency at WorldVillage Encyclopedia. Research Voice frequency and learn about Voice frequency here! (Site not responding. Last check: 2007-11-07)
		A voice frequency (VF) or voice band is one of the frequencies, within part of the
		voiced speech of a typical adult male with have a
		fundamental frequency of from 85 to 155 Hz, and that of a typical adult female from 165 to 255 Hz.
	encyclopedia.worldvillage.com /s/b/Voice_frequency (208 words)

	Correcting Low Frequency Phase Distortion
		For example, for a value of F0 of 100 Hz, as could be attained by a low pitched male voice, a filter having a -3dB frequency of as low as 10 Hz could may cause some appreciable waveform distortion, depending on the shape of the waveform and the strength of the filter.
		The value of 150 Hz represents a typical voice fundamental frequency and the square wave represents the type of waveform for which the distortion is most pronounced for a given filter.
		In the lower three panels (B, C and D), a compensator with N = 2.5 is employed to reduce the distortion, with the zero introduced by the compensator increasing in frequency from B to C, and at an intermediate value in D that appeared to the writer to yield a minimum distortion.
	www.rothenberg.org /Phase (2007 words)

	Method of and device for synthesis of speech from printed text - Patent 4278838
		Thus, depending on the particular phonemes to which a given phoneme is adjacent, the various components of this phoneme may be changed in frequency or new frequencies may be added, the modified formant distributions of the consecutive phonemes being fed to pitch and intensity analyzer 120.
		In addition, the duration of a phoneme read out from dictionary 114 may be increased or decreased by analyzer 131 depending on the identities of adjacent phonemes, the modified durations of respective phonemes being transmitted to vowel-duration and consonant-duration generators 121, 122 in parallel with the pitch and intensity data emitted to generator 120.
		Analyzer 131 may also be adapted to modify the frequency and amplitude characteristics and the durations of phonemes in accordance with position in a word.
	www.freepatentsonline.com /4278838.html (3371 words)

	DSP Voice Frequency Compandor
		Simply put, frequency companding is a method of removing the most unused frequency components from a given source and then shifting the remaining components together.
		Frequency shifting can be done quite simply by multiplying a signal in the time domain by a complex exponential.
		The frequency spectrum must be symmetrical around the origin, otherwise you have a complex number in the time domain (which you'll find rather difficult to send out the D/A converter).
	www.wwc.edu /~frohro/qex/qex-art.html (2443 words)

	Hydrogenaudio Forums -> Human voice maximum frequency?
		So if you take a voice that is not as clear or sharp as an opera singer's and therefore containing more whispering "components" you'll probably notice more high frequency content.
		The most important frequencies of speech for comprehension are the 1-3 khz range, which is, oddly enough, the part of the spectrum our ears are most sensitive too.
		Well it's not that odd that we are more sensitive to some frequencies, for instance, mothers have to hear their babies when they cry.
	www.hydrogenaudio.org /forums/index.php?showtopic=311 (1554 words)

	Aural style sheets
		whitespace characters before and after the voice family name are ignored and any sequence of whitespace characters inside the voice family name is converted to a single space.
		The average pitch of a voice depends on the voice family.
		The perceived pitch of a human voice is determined by the fundamental frequency and typically has a value of 120Hz for a male voice and 210Hz for a female voice.
	www.w3.org /TR/CSS21/aural.html (3012 words)

	FREQUENCY DIVISION
		The normal voice speaking range is from 100 to 3,500 hertz.
		In figure 3-30, the output of channel one is the voice frequency range of 100 to 3,500 hertz.
		The output of channel three is another voice frequency.
	www.tpub.com /content/neets/14189/css/14189_105.htm (336 words)

	Voice Frequency Explained (Site not responding. Last check: 2007-11-07)
		The use of voice for a wireless transmission in the USA is divided into two(2) different catagories; unlicensed devices and licensed devices.
		The frequency ranges as stated in 74.802 are; 26.1-26.4MHz, 54-72MHz, 76-82MHz, 161.625-161.775MHz, 174.00-216MHz, 450-451MHz, 455-456.00MHz, 472-608MHz, 614-806MHz, (764-776MHz and 794-806MHz is being realocated to public safety FCC Docket 98-191) Note 1 944-952MHz.
		The frequency range is 169-172Mhz(20 specific frequencies) and 406-413MHz(8 specific frequencies) and the power is limited to 50milliwatts.
	www.timcoengr.com /chn/voicefreq.htm (413 words)

	Configuring the RADSL Voice Splitter
		Because the majority of residences and homes have only a single pair of wires installed between the telephone company's central office and the homes and that pair is already in use for voice services, it is important to integrate voice and data services over that existing single pair of wires to remain cost effective.
		The connection to the RADSL line card of a MAX TNT from the main distribution frame does not require a voice splitter at the central office side because the RADSL line card itself ignores the lower voice frequency spectrum and utilizes only the data spectrum.
		The customer premises end of the voice splitter, the DSLVSP (Figure B-2), is installed at the demarcation point where the telephone company's local loop ends and where the inside wiring for telephones begins.
	www.hal-pc.org /~ascend/MaxTNT/hwinst/vsplit.htm (467 words)

	Freeware Home - Home and Hobby > Sound Tools > Analysis
		What it means is that it analyzes your voice and splits it into its component frequencies so that you can watch patterns of speech, the harmonics of vowels and the noise of sibilants.
		Counts the number of PHI relations in voice frequency formants and displays a graph with its evolution in time.
		Measures voice shape with the 30% of total frequency power generating tones based on its mirror (max-v(i)), these tones are rich in deficit frequencies and sound similar to nature environments, hard to believe until you hear them!.
	www.freewarehome.com /Home_and_Hobby/Sound_Tools/Analysis_t.html (1453 words)

	Voice Quality of Hearing-Impaired Children
		The aim of this research was to determine voice characteristics of hearing-impaired boys aged 10-12 years by Bruel and Kjaer, Real-time Frequency Analyser, Sound forge 4.0 and EZ Voice (PC programs for spectral analyses) in relation to control group of boys the same age without hearing disorders.
		According to the same author the basic types of hearing disorders is conductive impairments (placed in the middle and outside of ear) and sensorial (placed in inside structures of ear and cortical centers).
		Measures of these voice parameters in 24 school children’s voices were obtained using an acoustic analysis by Bruel and Kjaer, Real-time Frequency Analyzer, Type 2123, Sound forge 4.0, and EZ Voice (Voice Analysis Software, v 1.2).
	velebit.com /brestovci/Rad2.htm (1846 words)

	Space frequency listing 8-50 MHz
		Used to be registered as a frequency for space use by the ITU.
		Geoff Perry and Dick Flagg heard "Rubin" on this frequency on 12 oct 1964.
		Later such transmissions were frequently heard by several observers on 19.150 and 19.300 MHz.
	www.svengrahn.pp.se /trackind/freqlist/SpaceFreq.htm (361 words)

	A Nationwide UHF GPS Simple Calling Frequency (Site not responding. Last check: 2007-11-07)
		With the availability of the APRS Mic-Encoder that combines VOICE and Automatic Position reporting on any radio, it might be worth while to consider establishing a suggested UHF Voice SIMPLEX frequency for mobile operations.
		As anyone that has participated in a frequency coordinating organization can attest, finding an available packet frequency in our already crowded bands is a difficult and painful process.
		This is not a request for coordination, since it fits no established categories and simplex voice frequencies are not coordinated, but if your coordinating body does keep a "list" of common usage, then see if the 445.925 MHz simplex FM channel is available in your area.
	www.aprs.net /vm/DOS/UHFFREQ.HTM (688 words)

	The National Center for Voice and Speech - Tutorials
		A selection of mini-courses have been developed as aids for understanding some of the more difficult concepts presented in the text, Principles of Voice Production (click here to order the book).
		Note that a refresher on basic acoustics can serve as a jump-start for those who haven't had a recent course in college physics.
		Center for Voice Disorders of Wake Forest University
	ncvs.org /ncvs/tutorials/voiceprod/tutorial (235 words)

	ipedia.com: Voice frequency Article (Site not responding. Last check: 2007-11-07)
		A voice frequency or voice band is one of the frequencies, within part of the audio range, that is used for the transmission of speech.
		In telephony, the usable voice frequency band ranges from approx...
		The bandwidth allocated for a single voice-frequency transmission channel is usually 4 kHz, including guard bands.
	www.ipedia.com /voice_frequency.html (160 words)

	Voice Stress Analysis (Site not responding. Last check: 2007-11-07)
		I had no idea, however, that voice-stress analysis was being widely used in law enforcement as a hiring and investigative tool.
		David Hughes, executive director of the National Institute for Truth Verification says that more than 600 police agencies in the United States use the more expensive voice- stress analyzers costing from $5,000 to $8,000 instead of the polygraph.
		While the polygraph measures changes in a person's body associated with stress - alterations in heart rate, breathing, and emotional sweating, the Computerized Voice Stress Analyzer (CVSA) measures changes in voice frequency, which identifies stress that may indicate a lie.
	www.cjjohns.com /c_law/voice_stress.html (547 words)

	MELA: Marian Zazeela - Light Performances
		The Theatre of Eternal Music: La Monte Young, voice and frequency generators; Marian Zazeela, voice, projection design, light environment; David Rosenboom, viola; Marj Hassell, voice; Gisela Jahn, projections.
		The Theatre of Eternal Music: La Monte Young, voice and frequency generators; Marian Zazeela, voice, projection design, light environment; Jon Gibson, voice, tenor saxophone; Terry Riley, voice (29, 31 July; 1 August); David Rosenboom, viola (30, 31 July; 1 August); Susanna De Maria, projections, costume design; Kurt Munkacsi, sound engineer.
		The Theatre of Eternal Music: La Monte Young, voice and frequency generators; Marian Zazeela, voice, projection design; Simone Forti, voice; Peter Hartman, projections (10 June); Simone Forti, Richard Teitlebaum, Barbara Bryant, projections (23 June).
	melafoundation.org /liteperf.htm (1382 words)

	VF - Voltage to Frequency converter, Virtual Floppy, Voice Frequency (Site not responding. Last check: 2007-11-07)
		VF - Voltage to Frequency converter, Virtual Floppy, Voice Frequency
		Voltage to Frequency converter is not the only word formed from VF.
		3) VF is also derived from Voice Frequency
	www.auditmypc.com /acronym/VF.asp (200 words)

	[No title]
		An audio signal optical transmitter can be broken down into 6 sections: an audio amplifier, a voice frequency filter, a voltage to frequency converter, a pulse generator, a light emitter and a light collimator.
		The voice audio, whose upper frequency is restricted to less than 3.5KHz, is connected to a voltage to frequency converter.
		For standard voice systems, the transmitter circuit can be pulsed at the rate of about 10,000 pulses per second as long as the LED pulse width is less than about 1 microsecond.
	www.imagineeringezine.com /ttaoc/chpt-7.doc (3400 words)

	What's in your Music
		One correspondent asked whether a piano got down as low as 50 Hz and it made me realise that most of us don't really know what frequencies various instruments are capable of.
		In my research I also found some interesting stuff on the intensity of sound and what we actually mean when we talk about decibels.
		Audible frequency range of musical instruments and the human voice.
	www.tnt-audio.com /topics/frequency_e.html (373 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
		Energy Citations Database (ECD) Document #6843202 - Vertical magnetic noise in the voice frequency band within and above coal mines.
		Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link.
		Vertical magnetic noise in the voice frequency band within and above coal mines.
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=6843202 (93 words)

	Service Verification - SunSet OCx (Site not responding. Last check: 2007-11-07)
		No matter where you are in the network, the OCx can isolate a DS0 channel, measure the quality of the voice frequency circuit, and even place or receive calls.
		The OCx has the power and features to troubleshoot PRI problems, whether the cause be physical layer errors, timing, switch translations, or other protocol issues.
		In addition to bi-directional trace monitoring and decoding, the OCx can place and receive both voice and data calls in a TE or NT configuration.
	www.sunrisetelecom.com /ocx/ocx_service_verification.shtml (295 words)

	Complementary Use of Data Link and Voice Frequency Communication between Pilots and Air Traffic Controllers in a ...
		Complementary Use of Data Link and Voice Frequency Communication between Pilots and Air Traffic Controllers in a Simulated Situation (ResearchIndex)
		Complementary Use of Data Link and Voice Frequency Communication between Pilots and Air Traffic Controllers in a Simulated Situation
		Abstract: This empirical and exploratory study aims to define the complementary use of data link communication and voice frequency communication between pilots and air traffic controllers.
	citeseer.ist.psu.edu /424560.html (262 words)

	USCG MF Voice
		In the state of Alaska, medium frequency voice broadcasts, are performed from National Weather Service Forecast Offices on a MF/HF frequency of 4125 kHz.
		A Listing of NWS Marine Products Broadcast via U.S. Coast Guard MF Voice is available.
		Refer to NIMA Publication 117, which is updated through the Notice to Mariners, for the latest official listing of U.S. Coast Guard broadcast schedules.
	www.nws.noaa.gov /om/marine/mfvoice.htm (261 words)

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