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| | Constant bit rate - Wikipedia, the free encyclopedia |
 | | When referring to codecs, constant bit rate encoding means that the rate at which a codec's output data should be consumed is constant. | | | CBR is useful for streaming multimedia content on limited capacity channels since it is the maximum bit rate that matters, not the average, so CBR would be used to take advantage of all of the capacity. | | | CBR would not be the optimal choice for storage as it would not allocate enough data for complex sections (resulting in degraded quality) while wasting data on simple sections. |
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http://en.wikipedia.org/wiki/Constant_bit_rate
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| | Variable bit rate - definition of Variable bit rate in Encyclopedia |
| | When referring to codecs, variable bit rate encoding varies the amount of output data in each time segment based on the complexity of the input data in that segment. | | | VBR is preferred for storage (as opposed to streaming) because it makes better use of storage space: More space is allocated to more complex segments while less space is allocated to less complex segments. | | | The goal is to maintain constant quality instead of maintaining a constant data rate. |
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http://encyclopedia.laborlawtalk.com/Variable_bit_rate
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| | Define bit - a Whatis.com definition - see also: binary digit |
| | A bit (short for binary digit) is the smallest unit of data in a computer. | | | Although computers usually provide instructions that can test and manipulate bits, they generally are designed to store data and execute instructions in bit multiples called bytes. | | | A bit has a single binary value, either 0 or 1. |
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http://whatis.techtarget.com/definition/0,,sid9_gci213816,00.html
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| | Two-pass MPEG-2 variable-bit-rate encoding |
| | The bit rate that is fitted to the data is derived from Table 2, for an average bit rate of 4 Mb/s. | | | The characteristics of all of the input scenes, as coded at different fixed quantization scales and corresponding bit rates, are given in Table 1. | | | By using output buffering, a DVD essentially has a variable output bit rate from 0 up to this maximum of 10 Mb/s. |
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http://www.research.ibm.com/journal/rd/434/westerink.html
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| | What is bit? - A Word Definition From the Webopedia Computer Dictionary |
| | For example, classifying a computer as a 32-bit machine might mean that its data registers are 32 bits wide or that it uses 32 bits to identify each address in memory. | | | For example, a byte is composed of 8 consecutive bits. | | | This is Chapter 1 of Randall Hyde's book, "Art of Assembly Language." It describes the binary and hexadecimal numbering systems, binary data organization (bits, nibbles, bytes, words, and double words), signed and unsigned numbering systems, arithmetic, logical, shift, and rotate operations on binary values, bit fields and packed data, and the ASCII character set. |
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http://www.webopedia.com/TERM/b/bit.html
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| | Home Recording dot com BBS - wat is bit rate?? |
| | It is commonly called bit depth because it is bit depth, not bit rate. | | | Yes, it's a question of semantics, however the terms bit depth and bit rate are interchangeable. | | | Also, when manuals are written in languages other than english and then translated, it is possible also to see the bit depth reffered to as the bit rate. |
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http://homerecording.com/bbs/showthread.php?t=189976&goto=newpost
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| | RealJukebox FAQ - Constant and Variable Bit Rate Encoding |
| | Constant Bit Rate (CBR) encoding is an encoding method that varies the quality level in order to ensure a consistent bit rate throughout an encoded file. | | | Because a Variable Bit Rate (VBR) encoded MP3 file consists of variable bit rates throughout the file, the MP3 file size cannot be easily predicted. | | | As a result, your MP3 file consists of variable bit rates throughout the file because RealJukebox allocates the bits where they are most needed. |
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http://service.real.com/help/faq/rjbvbrfaq.html
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| | Single-pass constant- and variable-bit-rate MPEG-2 video compression |
| | This is a different approach from that of the CBR RC algorithm, in which a fixed number of bits is allocated to each GOP regardless of the degree of complexity of the source. | | | The number of bits per GOP is distributed such that the allocation for an I-picture is more than that for a P-picture. | | | Since for single-pass encoding, image statistics are limited by the previously analyzed pictures, the learning rate of the RC algorithm must be adequate to predict the content of the future video intervals, yet not aggressive enough to result in algorithmic instabilities. |
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http://www.research.ibm.com/journal/rd/434/mohsenian.html
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| | Bit Rate/Channel Allocation |
| | To accommodate multiple bit rates, the communication channels are structured in a superfame of 16 TDD frames 0 –15 (see Table 1). | | | Each moving base station has a traffic capacity of 12 channels with a bit rate of 20 Mbps per channel. | | | For example 3- 20 Mbps and 1-15 Mbps form a 75 Mbps channel as shown in Table 3. |
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http://www.carucel.com/Superframe.htm
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| | High Bit Rate and Frame Rate Encoding |
| | If your computer is not powerful enough for your target bit rate or frame rate, you experience unsatisfactory results. | | | The requirements for the client computer vary depending on the bit rate, video frame size, and frame rate. | | | From a performance perspective, however, serving a few high bit rate clips requires fewer CPU cycles than serving hundreds of lower data rate ones. |
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http://www.microsoft.com/technet/prodtechnol/netshow/deploy/hibitrt.mspx
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| | Reading MP3 information in ASP (bit rate, ID tag etc.) |
| | Some bits are read and then their meaning is translated in more convenient values in the properties of the object (in the code above Layer is one of the public properties of the class). | | | So the header is 4 bytes or 32 bits. | | | For example if the value passed to a bit logic function contains zeros for all the 16 most significant bits, VBScript may decide to put it in Short integer (2 bytes) and depending on the actual content it can be translated as negative short number and thus it will have some bits set in mistake. |
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http://code.newobjects.com/asp/mp3/article.htm
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| | O'Reilly -- High Bit Rate MP3s: Are they Necessary? |
| | Variable bit rate doesn't help much, but it doesn't hurt much, either; the files are only a couple percent larger than they would be otherwise. | | | L.A.M.E. is particularly interesting because it supports variable bit rate encoding, and implements a number of "psycho-acoustic enhancements." | | | When you're using L.A.M.E. with variable bit rate, the encoding rate represents the minimum resolution the encoder will use.) |
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http://www.oreillynet.com/pub/a/oreilly/web/news/high_bit_rate_0300.html
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| | 4i2i: H.263 Video coding tutorial |
| | If you would like details on low bit rate video implementations in hardware and software then click here. | | | The software is written in C and optimized for speed and image quality. | | | This reduces the amount of data that the video encoding algorithm has to deal with. |
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http://www.4i2i.com/low_bit_rate_video.htm
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| | project´s bit rate |
| | Older projects at different bit rates do seem to be retained in the project. | | | sonar automactically switched the original sample rate and bit depth of the project. |
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http://forum.cakewalk.com/tm.asp?m=420448
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| | (WO 98/44641) OPTICAL BIT RATE CONVERTER |
| | In one embodiment, the buffer has a data input and stores an optical data bit stream received from a high speed optical data source. | | | The invention also relates to a method for rate-converting an ultra-high speed optical data stream to a lower rate optical data stream. | | | The optical correlator produces a rate-converted optical data bit stream at its output in response to the repeating optical data bit pattern produced by the buffer and the optical sampling bit stream produced by the optical sampler. |
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http://www.wipo.int/ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=98/44641.981008
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| | Research on Rate Scalable Video Coding: SAMCoW |
| | One solution is to have the encoder lock on to a fixed data rate (usually the highest data rate) and let the decoder run freely. | | | A modified zerotree wavelet image compression scheme known as CEZW, used for coding intracoded and predictive error frames, that exploits the redundancy across color components | | | This extension to SAMCoW is known as SAMCoW+. |
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http://stargate.ecn.purdue.edu/~ips/research/samcow
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| | Macromedia SoundEdit 16 - Creating Streamable Shockwave Audio Files (SWA Files) |
| | The following table suggests some example bit rates, but remember that the Internet is not guaranteed to deliver the bandwidth you might think it will. | | | When choosing a bit rate, keep the system resources of your users in mind. | | | A high bit rate produces high-quality files but also requires high baud rates for streaming. |
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http://www.macromedia.com/support/soundedit/how/shock/creatswa.html
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| | High Bit Rate |
| | At all points it's beaten by Blade320- it's not the best- but for the degree of error, the error is the most consistent across frequency, where all the other encoders and rates tend to produce increasing amounts of error in the highs. | | | The message to learn here is simply that each encoder, whether by design, optimisation or mere coincidence, has developed a sonic personality that is completely distinct and centers on different values. | | | Bass over-ring is less than a third of what it was, the whole midrange is twice as tight as before- anyone using BladeEnc and considering higher bit rates should seriously consider 256K if they were even _thinking_ about using 192, as the improvement is all out of proportion to the added file size. |
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http://www.airwindows.com/encoders/highbitrate
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| | Define bit rate - a Whatis.com definition |
| | The term bit rate is a synonym for data transfer rate (or simply data rate). | | | In digital telecommunication, the bit rate is the number of bits that pass a given point in a telecommunication network in a given amount of time, usually a second. | | | Bit rate seems to be used more often when discussing transmission technology details and data transfer rate (or data rate) when comparing transmission technologies for the end user. |
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http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci214389,00.html
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| | Bit Rate Multiplier |
| | almar Optcom's Bit Rate Multiplier is designed to multiple input bit rate by a factor of 2, 4, 8 or 16. | | | BRM-T-X (Bit Rate Multiplier, X = 2, 4, 8, 16) | | | All information contained here is believed to be accurate and is subject to change without notice. |
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http://www.calmaropt.com/products_brm.htm
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| | Bit-Rate Control Using Piecewise (ResearchIndex) |
| | 9 Optimal bit allocation in the presence of quantizer feedback (context) - Uz, Shapiro et al. | | | In most standards, the rate control scheme, which plays an important role in improving and stabilizing the decoding and play-back quality, is not defined and thus different strategies can be implemented in each encoder design. | | | 91 Bit allocation for dependent quantization with applications.. |
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http://citeseer.ist.psu.edu/586168.html
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| | Bit rate: Todas las informaciones en Bit rate de Enciclopedia-Gratuita.com |
| | , es menos usada para velocidades binarias, pero casi siempre para cantidades de bits y bytes. | | | Típicamente, hay ocho bits en un byte u octeto, pero las velocidades de comunicación de datos casi nunca se expresan en bytes por segundo, con las excepciones notables de las velocidades de transferencia de discos y memorias I/O. Para convertir de bytes/s a bit/s, basta simplemente multiplicar por 8. | | | Bit rate: Todas las informaciones en Bit rate de Enciclopedia-Gratuita.com |
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http://www.enciclopedia-gratuita.com/b/bi/bit_rate.html
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| | Low Bit Rate |
| | Thus, it's a safe way to get into acute criticism of the encoders, as the major problems and errors can be introduced without offending the programmers too much (except for the Fraunhofer guys- they will be offended in the final, high bit rate section ;)) | | | LAME was never intended for low bit rate applications, so the data we have here is full of distortions and sonic problems that we'll see again and again in later, diminished forms as the bit rates increase. | | | This is hell for Blade- its worst area, at a torturous 32K bit rate. |
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http://www.airwindows.com/encoders/lowbitrate
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| | bit Power Tools - Compare Prices and Reviews - Shop Smart at Shopzilla! |
| | Vermont American® V-Groove Router Bit (22320) 1/4" shankA=3/8"; B=5/8"; C=1" D=1/2"Titanium coating reduces... | | | Store ratings and product reviews are submitted by online shoppers; they do not reflect our opinions and we have no responsibility for their content. | | | PROFESSIONAL TOOL GeNext Drill Doctor DD750X 3/32-3/4 Drill Bit Sharpener with Carrying Case 750X$15 Mail-In Rebate PROFESSIONAL TOOL The DD750X shop model is designed for durability... |
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http://www.shopzilla.com/7Y_-_cat_id--25000600__keyword--bit+rate
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| | Uncoupling low-bit-rate voice and VoIP |
| | Like the frame relay algorithms, this enabled the packing of many calls onto a single connection between sites. | | | The even lower bit rate G.723.1 algorithm at 5.3K bit/sec and 6.3K bit/sec was chosen as the default for VoIP. | | | In order to pack as many voice conversations as possible onto a single frame relay circuit, the relatively low bit rate 8K bit/sec G.729A algorithm was chosen for voice over frame relay. |
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http://www.networkworld.com/newsletters/converg/2002/01374946.html
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| | bit rate from FOLDOC |
| | For example, the MP3 audio compaction algorithm is often set to ouput files with a bitrate of 120 kbps. | | | The common units of bit rate are kilobits per second (Kbps) and megabits per second (Mbps). | | | The term is also commonly used when discussing digital sampling and sample rates. |
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http://foldoc.org/?bit+rate
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| | Bit Rate Resolution and Sampling Rate for Dummies - AudioReview Forums |
| | Bit Rate Resolution is the digital word length of each sample. | | | The precision difference with bit rate is noticeable when you realize that most internet audio streams are at 8bit and digital telephones are at 4bit. | | | RBCD bit rate resolution is 16bit which gives a 65,535 word length. |
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http://forums.audioreview.com/showthread.php?t=4214
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| | Bit rate - at Web Hosting Ratings |
| | The speed at which bits are transmitted over a communication link. |
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http://www.webhostingratings.com/glossary/Bit-rate.html
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| | macosxhints - Use a high initial iTunes bit rate for music conversion |
| | QTSS seems to play better at lower bit rates so unless you are going to copy your iTunes music Library over to your Webserver directory at a lower bit-rate it's hard to get anything over 96 kbs to play consistantly. | | | I have a solution for those unsure on what bit rate to encode your AACs at -- always import at a relatively high bit rate; I use 192 kbps. | | | Personally, I've chosen to encode at 192kbps, but I've also stored my library on a separate hard drive inside the machine... |
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http://www.macosxhints.com/article.php?story=20030610031138827
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| | VideoHelp Bitrate Calculator |
| | 700 MB CD but be sure that if fits use a bit lower like 695 MB, S = 695 x 1024 = 711 680 KB Audio bitrate, A = 224 kbit/s / 8 = 28 KB/s | | | Bps - Calculate with 1 kbit = 1000 bits or 1 kbit = 1024 bits, most encoders uses 1 kbit=1000 bits today. | | | If you are thinking of adding still images, menus, motion menus and extra subtitles and such you must add a few extra MBs to the other ISO files (click on advanced) or lower the calculated bitrate some bits or else it wont fit. |
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http://www.videohelp.com/calc.htm
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| | macosxhints - Reduce existing MP3 bit rate in iTunes |
| | Well, I used to rip my CDs at a high bit rate, but now that I have an iPod I want them at a lower rate. | | | I'm going to resample everything variable bit rate w/a minimum of 160 and an emphasis on quality. | | | It's simple, just set the bit rate you want in iTunes' preferences, and select the songs you want to down sample. |
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http://www.macosxhints.com/article.php?story=20030215215022754
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| | BitRate - Coming Soon... |
| | There's a bit of a long story regarding BitRate's lack of updates and then its total disappearance from the web, and I'll be more than happy to tell you all about it as soon as I finish piecing the site back together, which should take a few days or so. | | | That's Bigger Than Cheeses, which Goon wanted me to sufficiently link when I put the strip up. | | | In the meantime, enjoy this guest comic done by Goonigoogoo of Bigger Than Cheeses. |
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http://www.bitratecomics.com
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