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Topic: Binaural tones

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Binaural recording

Sound recording

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	Binaural recording - Wikipedia, the free encyclopedia
		Binaural recording is a method of recording audio which uses a special microphone arrangement.
		The term "binaural" has often been confused as a synonym for the word "stereo", and this is partially due to a large amount of misuse in the mid-1950s by the recording industry, as a marketing buzzword.
		For binaural listening though, the headphones need to have a flat response to the ear-canal entrance (not the eardrum) since it is at the ear-canal entrance that the recording microphones are placed.
	en.wikipedia.org /wiki/Binaural_recording (1275 words)

	Binaural beats - Wikipedia, the free encyclopedia
		Binaural beats or binaural tones are auditory processing artifacts, that is apparent sounds, the perception of which arises in the brain independent of physical stimuli.
		The sensation of binaural beats is believed to originate in the superior olivary nucleus, a part of the brainstem.
		Binaural beats have also been used experimentally for the treatment of addictions, and for the recovery of repressed memories, but as with other techniques this can lead to false memories.
	en.wikipedia.org /wiki/Binaural_tones (1309 words)

	DNA Music - Binaural Audio Beats Affect Vigilance
		PHYSIOL BEHAV 63(2) 249-252, 1998.-When two tones of slightly different frequency are presented separately to the left and right ears the listener perceives a single tone that varies in amplitude at a frequency equal to the frequency difference between the two tones, a perceptual phenomenon known as the binaural auditory beat.
		For example, mixing tones of 100 Hz and 110 Hz yields a signal with a perceived frequency of 105 Hz that rises and falls in amplitude with a frequency of 10 Hz.
		Binaural beats in the beta EEG frequency range were associated with relative improvements in target detection and reduction in the number of false alarms compared to binaural beats in the theta/delta EEG frequency range.
	www.dnamusic.com /articles/binaural_audio.htm (3745 words)

	Binaural Auditory Beats Affect Vigilance Performance and Mood (Site not responding. Last check: 2007-10-23)
		When two tones of slightly differentfrequency are presented separately to the left and right ears the listenerperceives a single tone that varies in amplitude at a frequency equal tothe frequency difference between the two tones, a perceptual phenomenonknown as the binaural auditory beat.
		For example, mixing tones of 100 Hz and 110 Hz yields a signal with a perceived frequency of 105 Hz thatrises and falls in amplitude with a frequency of 10 Hz.
		Binaural auditory beats provide a mechanism for stimulating the auditorysystem at very low frequencies, below the frequency threshold of hearing.Such very low frequency auditory stimuli might be capable of elicitingan entrainment of EEG frequencies, similar to that known to occur duringlow frequency photic stimulation (photic-driving).
	neuroacoustic.org /articles/articlebeats.htm (2893 words)

	Binaural Beats
		The sensation of binaural beats occurs when two coherent sounds of nearly similar frequencies or phase relationships are presented, one to each ear and the brain detects phase or frequency differences between the sounds.
		The binaural beat resulting in the brain is the phase or frequency difference between the two sounds.
		Because the binaural beat is the result of the phase or frequency relationship of the two sounds, the binaural effect is produced regardless of the relative amplitudes of the tones.
	www.cozzco.com /binaural.html (726 words)

	Alpha-State Binaural Entrainment
		To construct a binaural tone, the two speakers of a stereo system must be used.
		Binaural tones may be perceived and benefit will be experienced when played over a stereo system in a room.
		The tones may be used in various ways, and after becoming familiar with them, you may safely incorporate them in your practice as you see fit.
	www.emclear.com /WorkingOnYourself_aj.html (3055 words)

	Hemi-Sync - Binaural Auditory Beats Affect Vigilance and Mood (Site not responding. Last check: 2007-10-23)
		- When two tones of slightly different frequency are presented separately to the left and right ears the listener perceives a single tone that varies in amplitude at a frequency equal to the frequency difference between the two tones, a perceptual phenomenon known as the binaural auditory beat.
		Binaural beat signals were presented stereophonically by cassette tape.
		For the delta/theta condition the 100-Hz tone was presented with a 1.5-Hz binaural beat, the 200 and 250 Hz tones were presented with 4-Hz binaural beats, and the 300-Hz tone was presented with no binaural beat.
	hemisyncforyou.com /research/01 (3443 words)

	Binaural Sound Technology
		A willingness to focus the attention, while remaining relaxed and alert is a primary factor in how effective the binaural beat stimulus is for learning a specific brainwave state.
		Although is not necessary to actually hear the binaural beats in order to entrain the brain to the desired pattern, we have found that audible beats are beneficial.
		The binaural beats on these CDs are heard as harmonics of the actual beats and are not masked by the brown noise and can still be heard in the background.
	www.skyhero.com /binaural.htm (2380 words)

	Binaural Interference
		When two tones are played simultaneously and a listener is asked to determine if the interaural time difference of one tone has changed, it is more difficult to detect this interaural time shift than when the tone is presented in isolation.
		The early work on binaural interference suggested that binaural interference might mean that spatial cues may not be useful for sound source segregation.
		That is, when did the second of the three tones appears to move within your head (i.e., moves from near the center of your head, out away from the center, and then back to the center).
	www.parmly.luc.edu /parmly/binaural.html (627 words)

	Processing of Interaural Temporal Disparities in the Medial Division of the Ventral Nucleus of the Lateral Lemniscus -- ...
		by contralateral tones, elicited an onset response in the VNLLm.
		High-frequency neurons in the inferior colliculus that are sensitive to interaural delays of amplitude-modulated tones: evidence for dual binaural influences.
		Monaural and binaural response properties of neurons in the inferior colliculus of the rabbit: effects of sodium pentobarbital.
	jn.physiology.org /cgi/content/full/88/2/666 (6842 words)

	Binaural Beat Download - Download Binaural beats
		Binaural beats are generally embedded and mixed with music or various background sound to develop binaural beat one can try these beats from any Binaural beat download sites.If, in the presence of these tones, you relax and let your mind go, your mind will naturally synchronize with the beat frequency.
		Binaural MP3 which is available in the Binaural beat download sites helps one to meditate, to learn faster, to focus attention, to increase awareness.
		Binaural beat download are as easy so why one would not try to improve the mind power, alleviate sleeping problems and headaches and much more.
	www.binaural-beats.com /binaural-beats/article_binaural_beat_download.aspx (679 words)

	[No title]
		Kennerly concluded that beta frequency binaural beats are an effective method for facilitating simple free recall memory, ability to attend, and the ability to persevere at routine motor tasks.
		A binaural beat is generated by a shift between the left and right channels of an audio file at a certain frequency.
		In this experiment, initially the binaural beat was masked in the pink noise to rule out the possibility of an active mental participation by the subject to produce the synchronization as seen in biofeedback mechanisms.
	www.seas.upenn.edu /courses/belab/LabProjects/2001/be309f01m5.doc (2669 words)

	Technical Pages on Brainwave Entrainment, Binaural Beats and Research Conclusions
		In the case of binaural beats, the two tones are mixed by the brain itself (one in each ear).
		Binaural beats have become very popular over the years, so much so that for many people the idea of "brainwave entrainment" is inseparable from them.
		According to Oster, because of the way the brain processes binaural beats, the depth or intensity of the resulting "beat" is only around 3db, or 1/10th the volume of a whisper (which is why the "beats" are usually so hard to detect).
	www.transparentcorp.com /products/np/technical.php (1361 words)

	Binaural Beat
		Binaural beats or binaural tones are auditory processing artifacts, i.e.
		However, Binaural Beats and Subliminals are powerful and effective, using alpha frequencies with such stimuli should be used cautiously and as directed, they are not a toy.
		Binaural beats, brainwave entrainment, and brainwave generators have also been successfully used for the treatment of addictions, and for the recovery of repressed memories.
	www.binaural-beats.com /binaural-beats/article_binaural_beats.aspx?afl=14485 (900 words)

	[No title]
		BINAURAL BEAT BIOFEEDBACK FROM EEG by Philip Soden DISCLAIMER In using these files you agree that the author is not responsible for any injury to persons or property arising from such use.
		HAZARD WARNING Listening to binaural beat tones can produce altered states of consciousness and is reported to have triggered epileptic seizures.
		Rising tones give early warning signals of potentially distracting thoughts even before the user is consciously aware of the thought.
	www.mind-gear.com /cat/soden.txt (916 words)

	Single-Unit Responses in the Inferior Colliculus of Decerebrate Cats II. Sensitivity to Interaural Level Differences -- ...
		response to the binaural stimulus declines by 50% from the response
		Kelly, J. and Li, L. Two sources of inhibition affecting binaural evoked responses in the rat's inferior colliculus: the dorsal nucleus of the lateral lemniscus and the superior olivary complex.
		Xu, J. and Feng, A. Evidence that GABA-mediated binaural inhibition is responsible for direction-dependent sharpening of free-field frequency-tuning in the inferior colliculus.
	jn.physiology.org /cgi/content/full/82/1/164 (7546 words)

	BrainWave Generator - Theory
		If the left ear is presented with a steady tone of 500Hz and the right ear a steady tone of 510Hz, these two tones combine in the brain.
		To get a stimulus of 10Hz, you may use tones of 500Hz and 510Hz, or 400Hz and 410Hz, or 800Hz and 810Hz, or so on.
		For example, willingness and ability to relax and focus attention affects how effective the binaural beat stimulus is for inducing state changes.
	www.bwgen.com /theory.htm (838 words)

	Centrifugal Pathways Protect Hearing Sensitivity at the Cochlea in Noisy Environments That Exacerbate the Damage ...
		Cats were assigned to groups exposed to the loud tone in a background of silence or of noise.
		Liberman MC (1988) Response properties of cochlear efferent neurons: monaural vs binaural stimulation and the effects of noise.
		Rajan R, Johnstone BM (1988) Binaural acoustic stimulation exercises protective effects at the cochlea that mimic the effects of electrical stimulation of an auditory efferent pathway.
	www.jneurosci.org /cgi/content/full/20/17/6684 (6801 words)

	brainwave frequencies, EEG, and binaural beats - beta alpha theta delta
		The 'Binaural Beat' is created by the difference in 'carrier' frequencies in the left and right channels.
		This tone MUST be pure - the purest tone is a sine wave.
		It is known that at least one member of this group use binaural beats to clear their mind prior to remote viewing.
	www.rainfall.com /cdroms/brainwave.htm (1161 words)

	[No title]
		All tones with frequencies above the highest frequency in the list are multiplied by the factor on the highest, and all below the lowest frequency are multipled by the factor on the lowest.
		The binaural tones are based on a carrier frequency (in Hz), which should typically be in the range 50 to 1000.
		The spinning pink noise generates a binaural effect in a completely different way to binaural tones, by shifting the delay of pink noise in opposite directions for each ear, at a given beat frequency.
	uazu.net /sbagen/sbagen.txt (9391 words)

	ACME Product 2 (Site not responding. Last check: 2007-10-23)
		The tone, frequency, pitch, and other parameters of the light and sound stimulation vary the effect, just as different styles of music do.
		The binaural beats are built on 960 Hz, the Crown Chakra frequency in the spiritual octave.
		Choose chords, binaural beats synchronized with the visual flashes, or the unique and powerful dual binaural beat generator.
	home.houston.rr.com /hypnotherapy/prod02.htm (5138 words)

	some research on brainwaves and auditory stimuli
		Use of binaural beat tapes for treatment of anxiety: a pilot study of tape preference and outcomes.
		A controlled trial that includes binaural beat tapes as an adjunctive treatment to conventional therapy for mild anxiety may be warranted.
		PHYSIOL BEHAV 63(2) 249–252, 1998.—When two tones of slightly different frequency are presented separately to the left and right ears the listener perceives a single tone that varies in amplitude at a frequency equal to the frequency difference between the two tones, a perceptual phenomenon known as the binaural auditory beat.
	www.beadchaser.com /brainwaves/research.htm (795 words)

	NYU/CNS : Faculty : Core Faculty : Malcolm N. Semple
		For successful encoding of interaural time differences, binaural neurons at the first stage of binaural processing (the auditory brainstem) must be able to discriminate very small differences in time of arrival of synaptic inputs originating from the two ears.
		Although our studies have confirmed that primary binaural neurons are relatively insensitive to motion, we have found that certain neurons in the auditory midbrain and cortex are much more sensitive to simulated motion than to static binaural stimuli.
		Spitzer, M.W. and Semple, M.N. (1998) Transformation of binaural response properties in the ascending auditory pathway: influence of time-varying interaural phase disparity.
	www.cns.nyu.edu /corefaculty/Semple.html (672 words)

	Binaural Beats, EEG, etc. - Forum for PhotoReading, Paraliminals, Spring Forest Qigong, and your quest for improvement
		One of the interesting things is that when people played binaural beat cassette tapes on "boom-boxes" the audience still got some effects.
		The tones merely accentuate what's there or help to encourage it if it is absent.
		The only thing "dangerous" about low binaural frequencies is that you may fall asleep and get a crick in your neck.
	www.learningstrategies.com /forum/ubb/Forum6/HTML/000811.html (3245 words)

	Binaural Beat Brain Wave Experimenter’s Lab at Interakta.net // NetLabel (Site not responding. Last check: 2007-10-23)
		The theory behind binaural beats is that if you apply slightly different frequency sine waves to each ear, a beating affect is created in the brain itself, due to the brain’s internal wiring.
		It is also possible to produce mixtures of brain waves of different frequencies by mixing binaural tones, and in this way, with practice and experimentation, it is reportedly possible to achieve rather unusual states, such as out-of-body stuff, and more.
		My original idea was to use this utility to play a programme of different tones throughout the night, hoping to improve dreaming and dream-recall, and then to bring myself up into Alpha rhythms to (hopefully) make a good start to the day.
	www.loft8.com /word/?p=339 (646 words)

	Meditation And Creativity
		Binaural Beats aim to affect different parts of the mind and body by producing inaudible frequencies which cause resonance in the target area.
		We strongly recommend pure sine waves as opposed to orchestrated tones such as synthesizers, ocean waves, talking, or any other tones which will produce undesirable harmonics and off target beating.
		This CD series is being released by request of our customers who are interested in beats other than our regular CDs and may or may not be suitable for all users and results will vary.
	www.rainfall.com /cdroms/westbrook2.htm (511 words)

	ENHANCED HEALING THROUGH HOLISTIC MUSIC
		I have found that musical compositions that are harmonically slow, repetitious, with sustained voices, which are rhythmically, random in tempo assists an individual in experiencing a very deep state of relaxation.
		The binaural tones, through a process referred to as "entrainment" or "frequency following," gently guides or directs the mind/body to generate more of the targeted frequency of brain wave activity whether it be for either profound relaxation or sleep.
		Utilizing the same combination of original musical compositions and binaural audio tones as Prescription for Stress, Enhancing My Self Esteem is an audio health care product that creates a very profound and relaxing auditory environment, a space for the individual to become open or highly suggestible to a series of very positive affirmations.
	www.empoweredrecovery.com /articles/henshaw1.htm (1895 words)

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