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22-501: K700 may refer to: Sony Ericsson K700 , a model of mobile phone Kirovets K-700 , a model of heavy-duty tractor produced in former USSR and currently in Russia . [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination. If an internal link led you here, you may wish to change

44-401: A loudness compensation feature on some consumer stereos alters the frequency response curve to correspond roughly with the equal loudness characteristic of the ear. Loudness compensation is intended to make the recorded music sound more natural when played at a lower levels by boosting low frequencies, to which the ear is less sensitive at lower sound pressure levels. Loudness normalization

66-465: A shutter button when in camera mode. A sidekey on the right of the phone starts the web browser and goes to the home page as set in the Internet profile settings. There is a sticker on this side, labeled "Online" on non-network specific handsets. Additionally, the rubber pad at the very base of the front of the phone (below the main keypad and labeled "Quickshare" in non-network specific versions)

88-463: A 640x480 ( VGA resolution) digital camera which is capable of taking still photographs and videos. The digital camera has 4× digital zoom and an LED light which is bright enough to use as both a flash for the camera and a torch. The digital camera can extrapolate photographs to higher resolutions - up to 1280x960 in extended mode, about 1.2-megapixel resolution, however, due to poor VGA quality, pictures often appear to be pixelated when uploaded onto

110-463: A PC. The K700 also has a built-in email client, WAP and HTML browser which supports the SVG presentation Tiny specification, a media player which is capable of playing MIDI , WAV , MP3 and AAC audio files and 3GP , MPEG-4 video files, and an FM radio (which is only operable when the supplied headphones are inserted). Its Java ME implementation supports Mobile 3D Graphics API . It

132-457: A black button that is located on the top of the phone next to the IrDA port. There are three sidekeys on the left of the phone; two control volume (for both calls and when playing sound files) - these also control brightness when in camera mode; and when held down can skip between tracks whilst using the minimized media player. The third sidekey activates the digital camera mode, and also acts as

154-505: A sound. The relationship between SPL and loudness of a single tone can be approximated by Stevens's power law in which SPL has an exponent of 0.67. A more precise model known as the Inflected Exponential function , indicates that loudness increases with a higher exponent at low and high levels and with a lower exponent at moderate levels. The sensitivity of the human ear changes as a function of frequency, as shown in

176-436: A subjective measure, is often confused with physical measures of sound strength such as sound pressure, sound pressure level (in decibels ), sound intensity or sound power . Weighting filters such as A-weighting and LKFS attempt to compensate measurements to correspond to loudness as perceived by the typical human. The perception of loudness is related to sound pressure level (SPL), frequency content and duration of

198-546: Is a specific type of audio normalization that equalizes perceived level such that, for instance, commercials do not sound louder than television programs. Loudness normalization schemes exist for a number of audio applications. Historically sone (loudness N ) and phon (loudness level L N ) units have been used to measure loudness. A-weighting follows human sensitivity to sound and describes relative perceived loudness for at quiet to moderate speech levels, around 40 phons . Relative loudness monitoring in production

220-516: Is advertised as having 41 megabytes of built-in memory, which is not expandable. One unusual feature of the device was its support of the HID Bluetooth profile, under the name of "Remote Control". This is the first instance of HID profile support in a mainstream device. This poorly documented feature allows the device to function as a computer keyboard / mouse . This feature has been included in most subsequent Sony Ericsson models, such as

242-399: Is essential for phone operation it wears quickly and jams under heavy use), with the "C" button as an 'undo' or 'delete' button, and the arrow-labeled button as a 'return' or 'back' button. The two buttons labeled by black horizontal lines, known as 'hotkeys' or 'soft keys' perform the function of making binary decisions, labelled on the phone's display (e.g.: save/discard). The on/off button is

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264-448: Is measured in accordance with ITU-R BS.1770 in units of LKFS. Work began on ITU-R BS.1770 in 2001 after 0 dBFS+ level distortion in converters and lossy codecs had become evident; and the original Leq(RLB) loudness metric was proposed by Gilbert Soulodre in 2003. Based on data from subjective listening tests, Leq(RLB) compared favorably to numerous other algorithms. CBC , Dolby and TC Electronic and numerous broadcasters contributed to

286-718: Is prone to becoming detached. The bottom end of this phone features the second generation of connectors, dating back from the Ericsson T28 , and aptly dubbed the "T28" port. They are covered by a rubber clip, which is also prone to becoming horribly loose and, in some circumstances, falling off. This is Sony Ericsson's last phone to use the T28 connector (later models, as of the K750, use the Sony-designed FastPort connector). Loudness In acoustics , loudness

308-608: Is the subjective perception of sound pressure . More formally, it is defined as the "attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud". The relation of physical attributes of sound to perceived loudness consists of physical, physiological and psychological components. The study of apparent loudness is included in the topic of psychoacoustics and employs methods of psychophysics . In different industries, loudness may have different meanings and different measurement standards. Some definitions, such as ITU-R BS.1770 refer to

330-451: The equal-loudness graph . Each line on this graph shows the SPL required for frequencies to be perceived as equally loud, and different curves pertain to different sound pressure levels. It also shows that humans with normal hearing are most sensitive to sounds around 2–4 kHz, with sensitivity declining to either side of this region. A complete model of the perception of loudness will include

352-556: The Sony Ericsson S700 and K750 . The K700 weighs 93 g (3.3 oz ). It is a rectangular unit that is typically held in the palm of the hand, with the buttons operated by the thumb. It has the 'dual-front' design common to most Sony Ericsson mobile phones since the T630, with the back of the mobile phone designed to look like a digital camera. The central joystick button is used for selecting options and navigating menus (as this

374-430: The classical explanation. Softness imperception, a term coined by Mary Florentine around 2002, proposes that some listeners with sensorineural hearing loss may exhibit a normal rate of loudness growth, but instead have an elevated loudness at their threshold. That is, the softest sound that is audible to these listeners is louder than the softest sound audible to normal listeners. The loudness control associated with

396-604: The cochlea or in the brain) is present, the perception of loudness is altered. Sounds at low levels (often perceived by those without hearing loss as relatively quiet) are no longer audible to the hearing impaired, but sounds at high levels often are perceived as having the same loudness as they would for an unimpaired listener. This phenomenon can be explained by two theories, called loudness recruitment and softness imperception . Loudness recruitment posits that loudness grows more rapidly for certain listeners than normal listeners with changes in level. This theory has been accepted as

418-413: The integration of SPL by frequency. Historically, loudness was measured using an ear-balancing method with an audiometer in which the amplitude of a sine wave was adjusted by the user to equal the perceived loudness of the sound being evaluated. Contemporary standards for measurement of loudness are based on the summation of energy in critical bands . When sensorineural hearing loss ( damage to

440-465: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=K700&oldid=932925855 " Category : Letter–number combination disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Sony Ericsson K700 The K700 features Bluetooth , IrDA , GPRS (4+2), Java ME support, and

462-677: The listening tests. Loudness levels measured according to the Leq(RLB) specified in ITU-R BS.1770 are reported in LKFS units. The ITU-R BS.1770 measurement system was improved for made multi-channel applications ( monaural to 5.1 surround sound ). To make the loudness metric cross-genre friendly, a relative measurement gate was added. This work was carried out in 2008 by the EBU. The improvements were brought back into BS.1770-2. ITU subsequently updated

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484-534: The relative loudness of different segments of electronically reproduced sounds, such as for broadcasting and cinema. Others, such as ISO 532A (Stevens loudness, measured in sones ), ISO 532B ( Zwicker loudness), DIN 45631 and ASA/ANSI S3.4, have a more general scope and are often used to characterize loudness of environmental noise. More modern standards, such as Nordtest ACOU112 and ISO/AWI 532-3 (in progress) take into account other components of loudness, such as onset rate, time variation and spectral masking. Loudness,

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