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| | DVD-HQ : Bitrate & GOP calculator © Rui del-Negro 2005 |
 | | Note that for storage calculations (ex., disc size, bitrate), a gigabyte is usually considered to be equivalent to 1000 megabytes, whereas software normally considers that one gigabyte is equivalent to 1024 megabytes (the same is valid for megabytes and kilobytes). | | | Note that (obviously), the minimum bitrate should always be less than the average bitrate, and the average bitrate should always be less than the maximum bitrate. | | | Normally, the calculator will automatically decide, based on the computed bitrate values, whether you should use CBR or (2-pass) VBR. |
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http://dvd-hq.info/Calculator.html
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| | LayersInfo |
| | If there are some optimization points whose target bitrate is larger than the overall target bitrate, the overall target bitrate will still appear as the last optimization point, even though it does not follow the increasing target bitrate order of the other optimization points. | | | These layers are allocated between the bitrate optbrate[i] and the next optimized bitrate optbrate[i+1] or, if it does not exist, the overall target bitrate. | | | The target bitrate to which specified layers should be optimized. |
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http://www.jpeg.org/jpeg2000guide/software/jj2000/jj2000-5.1-Doc/doc/jj2000/j2k/entropy/encoder/LayersInfo.html
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| | DFW - DirecTV HDTV Bitrate Monitor |
| | If you are interested in the math behind computing the bitrates, I've detailed it in a blog entry. | | | I'm very confident these numbers are accurate as I compared them to analysis of a recording of an OTA sample on DVHS and using TSReader Lite to analyze the resulting transport stream. | | | Just for fun, here is the estimated file size for one hour of programming at various bitrates. |
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http://www.widemovies.com/dfwbitrate.html
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| | Software Download: Bitrate |
| | Furthermore, Constant Bitrate (CBR) options are available for the best compatibility with both hardware and software WMA players, and Variable Bitrate (VBR) is also provided for further optimized file sizes. | | | Constant Bitrate (CBR) options are available for the best compatibility with both hardware and software players, and Variable Bitrate (VBR) is also provided for further optimized file sizes. | | | In addition, Constant Bitrate (CBR) options are available for the best compatibility with both hardware and software MP3 players, and Variable Bitrate (VBR) is also provided for further optimized file sizes. |
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http://www.sharewareconnection.com/titles/bitrate.htm
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| | Results of 64 kbit/s Listening Test |
| | Bitrates: The bitrates were calculated using the size of the file in bytes and the time in seconds with the following formula: bitrate = 0.008 * size / time. | | | Note that some formats, for example the oggs, might contain a header, which adds to the bitrate for short samples. | | | I don't know what the header sizes are for all the formats, but for ogg it is about 3 to 4 kB. |
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http://ff123.net/64test/results.html
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| | 3ivx D4 4.5 - Mac OS - QuickTime Compression Settings |
| | The algorithm is controlled by the Average Bitrate setting, which is in Kilobytes/Second. | | | The algorithm is quite clever but can not produce the stunning video results which a dual-pass algorithm can because the encoder has no idea what video conditions will present themselves in the future. | | | ABR encoding will be suitable for most forms of streaming, but is not a pure Constant Bitrate algorithm. |
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http://www.3ivx.com/support/mac/encoding/quicktime.html
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| | Streamingmedia.com: Industry Perspectives: Finding the Bitrate Sweet Spot |
| | By understanding the viewing environment, it is possible to determine the bitrate sweet spot, and in turn understand the network requirements prior to rollout of the service. | | | In fact, there are compromises to be made, and it is the careful balancing of these compromises that are key to the success of any digital project. | | | In the digital video arena, the over-arching compromise is that of bitrate versus quality. |
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http://www.streamingmedia.com/article.asp?id=9007
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| | The FezGuys!™ - Variable Bitrate MP3 Encoding - (July 2001) |
| | Standard MP3 files are encoded at a single bitrate through the entire file (hence the CBR moniker). | | | The MP3 standard is designed so that information about the encoded bitrate level is included throughout the file. | | | The key conceptual difference between CBR and VBR is that where in CBR encoding you specify your compression by space, with VBR you specify it by quality. |
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http://www.fezguys.com/columns/057.shtml
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| | MPEG Bitrate - how to set optimal bitrate |
| | One important thing not many people realize is that optimal bitrate also depends on the resolution. | | | MPEG Bitrate - how to set optimal bitrate | | | Here is a simple table to determine the best MPEG bitrate |
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http://www.mediachance.com/dvdlab/tutorial/bitrate.html
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| | LinuxQuestions.org - Is Ogg Vorbis ready for Bitrate Peeling? - where Linux users come for help |
| | Upon doing some searching today, somewhere else I heard that bitrate peeling is used to simply *create* a lower-bitrate file from a high-bitrate file without re-encoding. | | | However, I like what Ogg Vorbis is doing, but I don't understand the one thing that could make it usable in this instance. | | | Thanks, but that doesn't tell me how to implement it on an Apache box, or even if it's possible... |
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http://www.linuxquestions.org/questions/showthread.php?postid=90000
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| | [Easy Convert MP3 Bitrate ?] - iPodlounge Forums Archive |
| | I can't confirm the assertion that downconverting your bitrates results in a worse quality file than ripping the file directly from your CDs, but I understand why you might want to do it. | | | You can do a google search for several choices of software that convert mp3 bitrates. | | | Does anyone knows a software that can convert MP3 bitrate browsing subfolders without having to do this file per file ? |
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http://forums.ipodlounge.com/archive/topic/6921-1.html
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| | MP3 Bitrate Converter: CDMaster32 is a fully functional MP3 Bitrate Converter |
| | As such, increasing the bitrate will not be able to add anything further to the file except wasted space. | | | Many MP3 players have a limited amount of memory (say 32MB) so reducing the bitrate from 160kbps to 64kbps will allow you to fit more files into 32MBs of memory. | | | Hint: You can select other "output" file types here as well. |
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http://www.zittware.com/Products/CDMaster32/Tutorials/mp3_bitrate_conversion.html
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| | InterVideo DVR 3 bitrate problem |
| | Is there a known problem with the Intervideo program in that it does not record at the bitrate it is set to? | | | When I load the file into TMPGenc author it says the bitrate exceedes the maximum allowed for DVD (9800). | | | afterdawn.com / forums / video capturing from analog sources / intervideo dvr 3 bitrate problem / |
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http://forums.afterdawn.com/thread_view.cfm/68301
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| | ::. Bitrate Digital Internet Radio - The Best Mix On The Net! .:: |
| | Geoffrey helps out with the station where he sees fit, and announces the Net 30 Countdown with J. Geoff is a cruicial part of the Bitrate Digital team - we couldn't do it without him (although we won't tell him that!) | | | Bitrate Digital Internet Radio - The Best Mix On The Net! | | | James B (General Manager, Webmaster & Host, Bitrate Digital)” |
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http://www.bitratedigital.com/about.php
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| | Definition List |
| | Bitrate actually means how many bits (a small size of space on your computer) are taken up per second of music. | | | These programs can be useful for someone who just want one program to take care of it all. | | | Stands for Variable Bitrate and is a method of encoding audio to MP3 that allows for different sections of the file to be encoded at different bitrates, depending upon the demands of the song. |
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http://www.mp3player.com/help/definitions/definitionslist.htm
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| | TiVo Community - Changing bitrate & resolution (Mode 0) |
| | With the new high resolution mode and increased bitrate, the picture from the projector is an order of magnitude better than it was. | | | In fact, the true capacity should be based on the Average BitRate, which should give you significantly more. | | | I'm sure that someone will correct me if I'm wrong, but if you make a chip work harder it runs hotter, this in turn increases the rate of electron migration which eventually causes the chip to fail. |
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http://www.tivocommunity.com/tivo-vb/archive/index.php/t-128288.html
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| | VideoHelp Bitrate Calculator |
| | Download this Bitrate Calculator here so you can use it offline, extract all files to a folder and open the BitrateCalc.html with any web browser. | | | If you want more data files/iso files then increase this value. | | | S = Size you like to use in KB (note 700 MB x 1024° = 716 800 KB) |
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http://www.videohelp.com/calc.htm
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| | Bitrate |
| | For example, MP3 files with a bitrate of 128KBPS are more likely to sound better than an MP3 file with a bitrate of 64KBPS. | | | These software programs are especially useful for users who wish to store audio files on MP3 players with limited space. | | | To help conserve space required by audio files, individuals and companies have developed "bitrate converters" that will convert a high bitrate file to a lower bitrate. |
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http://www.computerhope.com/jargon/b/bitrate.htm
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| | Bitrate Options: |
| | You may want to specify a minimum bitrate (e.g.:set to 64 kbps) to avoid those potential errors. | | | The main advantage is that the final files size won't change and can easily be predicted. | | | Then encoder tries to maintain the given quality in the whole file by choosing the optimal number of bits to spend for each part of your music. |
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http://cdexos.sourceforge.net/help/cdex15.htm
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| | Low Bitrate MPEG Training for Networks |
| | The video streams are so small that even a 486 computer is fast enough to play them at their best possible quality. | | | The reduced file sizes require less file server capacity and network bandwidth to play the courses. | | | Mastery's low bitrate versions are possible through recent improvements in MPEG encoding technology. |
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http://www.masterytech.com/lbr_tech.htm
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| | Video Bitrate Calculator |
| | The program will then calculate the constant bitrate needed to fit the movie to the available disk space. | | | BitrateCalc.exe determines the constant bitrate for encoding movies. | | | The determined bitrate is given in kilobits and bits. |
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http://www.angelfire.com/az2/asw/programs/bitratecalc/bitratecalc.html
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| | Vorbis.com - Open, Free Audio |
| | For example, the only low bitrate comparisons we've done so far have been at CD rate 44.1kHz (except where the competition couldn't keep up and had to downsample). | | | We here at Xiph.Org worked carefully and diligently over the past several months improving every aspect of Vorbis, resulting in solid improvements in high bitrate reliability and a breathtaking improvement at low bitrate performance. | | | About half of the clips included are from Microsoft's own WMA demos, a few come from high-fidelity digital demonstration sources and some are from Xiph.Org's codec tuning selection. |
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http://www.xiph.org/vorbis/listen.html
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| | High bitrate..? |
| | Update on the bitrate problem: 2.81b1 seems to have fixed it. | | | The inference is that you won't try to find a proper solution, which will make WMP read the correct values, too. | | | Given the file sizes I'm inclined to believe the high bitrate. |
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http://www.mgshareware.com/community/index.php?topic=8.0
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| | pdaPhoneHome.com Archive - MP3 bitrate |
| | I should mention that the dragonball CPU speed can be overclocked to help with getting data off the SD card and to the chip faster depending on what other tasks are currently running. | | | In theory, the chip can handle variable bitrates as high as 320. | | | The main reason for skipping has to do with getting the MP3 "file" to the hardware chip, and so a higher bitrate requires more bandwidth (more data per second). |
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http://pdaphonehome.com/forums/showthread/t-27596.html
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| | [Project Wizard]-[Bitrate Setting (4/5)] |
| | However, if you choose certain format such as VCD, it is locked and can not be changed. | | | -[Project Wizard], [Select Format (1/5)], [Select Source File (2/5)], [Filter Settings (3/5)], [Bitrate Setting (4/5)], [Specify Output filename (5/5)] | | | Displays the occupancy rate of MPEG file you are going to create in the disk you have chosen. |
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http://home.pages.at/xvcd/tmpgenchelp/2005.html
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| | Bit rate - Wikipedia, the free encyclopedia |
| | In telecommunications and computing, bit rate (sometimes written bitrate or R | | | Experts and audiophiles may detect artifacts in many cases in which the average listener would not. | | | The bit rates in this section are approximately the minimum that the average listener (when using the best available compression) would consider not significantly worse than the reference standard: |
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http://en.wikipedia.org/wiki/Bitrate
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| | [Avifile]Changing encoding bitrate during runtime |
| | Hi avifile-ers, I'm wokring on Drip, an dvd->msmpeg4 convertor tool, and want to implement some more advanced encoding methodes. | | | Just changing the bitrate --- #if (AVIFILE_MAJOR_VERSION == 0) andand (AVIFILE_MINOR_VERSION==6) Creators::SetCodecAttr(enc->GetCodecInfo(), "BitRate", divxbitrateNew); #else IVideoEncoder::SetExtendedAttr(codec, "BitRate", divxbitrateNew); #endif --- doesn't work, so I'm wondering if there's an other way to change the bitrate once the encoding has been started. | | | For this I ned to be able to change the encoding bitrate during encoding of a stream. |
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http://prak.org/pipermail/avifile/2001-August/002549.html
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| | Got Apex? Forums - MP3 bitrate question |
| | I just assume it would, but that would be coming from the paradigm where conversion = resampling/rerecoring. | | | P.S. This may not be worded correctly, but I think you should get the idea. |
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http://www.gotapex.com/forums/printthread.php?t=35908
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| | Lowering bitrate |
| | I need to lower the bitrate on a DivX file so I can make it playable on my standalone (Philips DVP642. | | | Should I bump up the bitrate as high as possible to still fit in the disc or keep it the same as the original. | | | And when encoding DivX to mpeg2 (to play DVD on tv) should I keep the resolution the same as original or force it to 720x480. |
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http://forums.afterdawn.com/thread_view.cfm/221769
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| | ExtremeTech: iTunes Bad, WMA Good |
| | In all the AAC-encoding software I've seen, including iTunes' ripping features, all I can do is pick a bitrate. | | | I also have a problem with AAC's lack of a quality-based variable bitrate mode. | | | The problem with AAC is that it doesn't really have digital rights management, so songs you buy through the iTunes Music Store have an Apple-specific proprietary digital rights management scheme called FairPlay attached to them. |
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http://www.findarticles.com/p/articles/mi_zdext/is_200402/ai_ziff119016
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| | Hydrogenaudio Forums -> free bitrate (like Lame) vorbis encode possible? |
| | May be i'm not clear, but the question is if there's a way to use vorbis, not specifing any average bitrate, and let it flow between a given max and min bitrate range? | | | -M, --max-bitrate Specify a maximum bitrate in kbps. | | | Can't do it with beesweet (it always set between max and min bitrate specified an average quality that correspond to 160 kbps, even if you don't specified a nominal bitrate), can't do it with oggdropXP, can't do it with winvorbis, and can't do it with oggenc.exe. |
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http://www.hydrogenaudio.org/forums/index.php?showtopic=10336
(561 words)
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| | Companies - Specializing - Bitrate Software |
| | Specializes in: photography, codec, bitrate, number, n side, windows, true, wabc, advanced, generator, audio, random, cafxx, programming, hardware, wavi, lightstorm, calculator, xvid, divx, video, n side it, wavelet, trng | | | Specializes in: mpeg 1, dv avi, bitrate calculator, 2 mpeg, video compression technology, mpeg 4, internet today, divx videos, adware, precise control, quality movies, divx video, divx player, software enabling, dr divx video encoding bundle, video creation, divx pro, divx codec, mpeg 2, divxnetworks | | | Specializes in: bitrate, ogg to mp3, wma wav, cue bin, mp3 wav, adpcm, audio files, audio converter, files iso, cd ripper, ogg vorbis, complete cd dvd writer, audio player, audio i, sound editor, format parameters |
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http://www.soft411.org/companies/bitrate.html
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| | AVI Bitrate Calculator : Ecuador' s PC-DVD Section |
| | October 30 2002 - Version 2.91 DX The second version of my program is actually a compilation of calculators optimized for use with the various steps of various DVD to DivX methods, as it was created to accompany my Rip-Packs. | | | I do not know when I will release a new version as I have very little time to devote to the project. | | | - Added HH:MM:SS format in Video Bitrate Calculator. |
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http://www.ecuadors.net/pcdvd/dvdabc.htm
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| | [OpenH323]Re: Question: is there any bitrate control mechanism |
| | >Message: 1 >From: Kurt Guntheroth >To: "'openh323@openh323.org'" >Subject: RE: [OpenH323]Question: is there any bitrate control mechanism in > side Openh323 H.261 encoder/transmiter? | | | You need to measure your outgoing bitrate (which is easy code to add to the openPhone encoder). | | | The standard video codecs (H.261 and H.263) have very well-known and standardized methods of controlling their output bitrate, and none of them are used in the code that's in the openPhone code base. |
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http://www.openh323.org/pipermail/openh323/2001-May/045761.html
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| | The essential byte on bitrates - Articles @ MP3Machine |
| | The essential byte on bitrates - Articles @ MP3Machine | | | In terms of MP3 audio files, the bitrate unit is more commonly referred to as 'kbps', which is thousand-bits-per-second. | | | Bitrate is the amount of information (bits) transferred in a second ('bps' is the abbreviation of bits-per-second). |
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http://www.mp3machine.com/news/549
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| | PowerBIT |
| | For example: If the result is 4675 kbps you should | | | PowerBIT is a bitrate calculator especially useful for transcoding a DVD. | | | you entered, you have to use a lower bitrate to avoid too large movie files. |
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http://www.gallen.de/dvd/powerbit_en.html
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| | DivX Digest - BRuCo-BitRate Calculator |
| | After several compressions I gathered enough data to write it by myself, givin' it my language (italian) and the best UI: flexible and simple. | | | I wrote it at the release of the newest version, when I was tired of finding bitrate calculators for DivX 3.11-alpha only. | | | BRuCo is THE BitRate Calculator for the great DivX5 codec. |
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http://www.divx-digest.com/software/bruco_bitrate_calc.html
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| | Download divX movie size and bitrate calculator |
| | A lot of similar software on the market suffer from a small calculation bug that leads to over/under sized movies to fit one CD. | | | Search for more Video software in Multimedia & Design directory | | | A lot of similar software on the market suffer from a small calculation bug that leads..." name="description"> |
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http://www.divx-movie-size-and-bitrate-calculator.com-download.net
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| | [MP3 ENCODER] Low bitrate question |
| | ABR/CBR take 90 percent of the target bitrate as a fixed minimum of bits to use and allocate from the rest + bitreservoir some bits depending on the perceptual entropy. | | | In the above case, ABR takes 90 percent of 28 kbps as fixed minimum compared to 90 percent of 56 kbps with CBR. | | | > > How does --abr with the same minimum and maximum bitrate differ from using > CBR? |
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http://minnie.tuhs.org/pipermail/mp3encoder/2001-May/002818.html
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| | Target Bitrate Settings Dialog Box |
| | This information is read-only information and cannot be changed. | | | This gives you control over the exact bitrate (audio and video combined) that the streaming media file will be encoded for. | | | For example, it is common to encode to a target bitrate of 34 Kbps for the 56K modem target audience, since 34 Kbps of actual useable bandwidth is what you can typically expect. |
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http://www.techsmith.com/products/studio/tutorials/1300.71.asp
(267 words)
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| | Annoyances.org - No sound in high bitrate AVI's in WinXP (Windows XP Discussion Forum) |
| | Annoyances.org - No sound in high bitrate AVI's in WinXP (Windows XP Discussion Forum) | | | A friend is having trouble playing high bitrate avi's on her WinXp machine. | | | In WMP9 she has a number of avi that show a bitrate of 5200 kbps she gets vision, but no sound, all the others with a lower bitrate ie 40 kbps play with no problems at all. |
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http://www.annoyances.org/exec/forum/winxp/1051363164
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| | GB-PVR Forums - ATI TV Wonder Elite bitrate settings problem |
| | I'm wondering if the card is allowing the hardware encoding bitrates to be changed by GBPVR? | | | I'm using a digital cable converter for my source, so I have been using manual recording to capture. | | | I have edited the bitrate settings for every recording mode available to try to get the card to capture at a higher bitrate with no resulting change in bitrate. |
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http://forums.gbpvr.com/printthread.php?t=5533
(237 words)
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| | Annoyances.org - Converting Bitrate on WAV File (Windows XP Discussion Forum) |
| | Annoyances.org - Converting Bitrate on WAV File (Windows XP Discussion Forum) | | | Please do not plagiarize; redistributing these pages without permission is strictly prohibited. | | | I am trying to convert a WAV file that has a bitrate of 15H to 128 kbps. |
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http://www.annoyances.org/exec/forum/winxp/t1044916247
(467 words)
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| | phorum - DVD Studio Pro - BITRATE IS TOO HIGH!!! |
| | E-mail replies to this thread, to the address above. | | | The answer may be waiting for you here! | | | BITRATE IS TOO HIGH is the only answer i'm getting when I'm building the dvd.... |
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http://www.lafcpug.org/phorum/read.php?f=5&i=992&t=992
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