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    rmat was called Super Audio Compact Disc. As a result, there was no single standard and neither SACD nor DVD-Audio managed to even get close to ordinary Audio-CD sales volumes.

    The difference in sound between SACD and DVD-Audio wasn't spotted even by most "advanced" audiophiles.

    Let's examine each of the technologies in details:

    DVD-Audio

    Since DVD-Audio standard is based on ordinary DVD, such disk can be double-sided or double-layered or a combination of these two. Unlike SACD, a sound can be recorded on DVD-Audio in different quality and in various formats, stereo or multi-channel. Sampling rate for DVD-Audio can vary from 44.1 kHz up to 192 kHz (however sound can only be stereo at 192 kHz, as it is simply not enough space for multi-channel sound of that quality). Generally, DVD-Audio is able to deliver 1000 times more accurate sound when compared with Audio CD!

    To be able to fit multi-channel uncompressed sound (which usually takes lots of space) developers have used special lossless compression technology called MLP (Meridian Lossless Packing), which in some ways is similar to

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    At first thought, undergoing advanced career training has one obvious, and maybe only, reason: to further your current career. Whether you are considering advanced real estate career training, medical career training, or advanced training for any other occupation, the likelihood is that furthering your current career is the motivation behind your move.However, furthering your current career need not be the sole reason you may consider advanced career training. Furthermore, there may be good reasons for undertaking such training you have not even thought of. In fact, there are both positive (offensive) and negative (defensive) reasons for considering, and undertaking, advanced career training. All of these are discussed in this article.Positive Reasons For Taking Advanced Career TrainingWhen one thinks of advanced career training, then it is the positive reasons for such training that are mostly likely to come to mind, such as:1. To increase chances of promotion by taking training courses that prepare you for the next level, such as office manager in a real estate business or extra medical training to become a surgeon.2. To keep up to date with developments in your area of expertise, to enable you to do a better job and, for example, treat customer or patients better.3. Specialist training in a part of your current career that will enable you to specialise in that particular aspect of your work.4. Completing training courses successfully in your field can look good on your resume, if the training is relevant and in demand.5. You may want to have a career change for which particular training is necessary in preparation.Negative Reasons For Taking Advanced Career TrainingOne
    New sound formats: DVD-Audio and SACD

    When Audio-CD format emerged, most music producers and music lovers were absolutely sure that Audio CD provides the best quality sound possible and nothing else will ever be required. However, some audiophiles instantly refused to accept new Audio CD and reverted back to old vinyl disks. At first no-one took them seriously, however, as the time passed an increasing number of listeners started to notice, especially when comparing CD albums with the same records on vinyl, that CDs are not capable to transmit full range of sound. Eventually it becomes clear that there are scientific reasons behind this, namely dynamic range and sampling rate.

    Dynamic range is the difference between the loudest and softest sounds in audio record. Sound data is recorded on CD in 16-bit PCM format and therefore its dynamical range does not exceed 96 decibels. And the upper range for human ear is 120Db. The difference is obvious. While the lack of dynamic range might be hard to notice for the pop music, but for something like symphony orchestra sound engineers often have a problem with too soft or too loud instruments which are beyond dynamical range and therefore lost in record.

    Apart from dynamic range it also became clear that Audio CDs have insufficient sampling rate. Digital record consists of small pieces called samples, each of them contains information about sound in particular point in time. The more samples are per unit of time, the higher is the quality of record. Basically, sample is a digital analogue of sound oscillation and for that reason they are measured by using the same unit, hertz (Hz). The maximum frequency of sound that humans can hear is around 20 thousands hertz (20 kHz). To reproduce sound accurately, the sound information have to be digitized with sampling rate higher than a human can hear.

    During Audio-CD development it was believed that doubling this rate - up to 44.1 kHz would be sufficient. But for some records part of sound was lost and turned into noise. Especially often that happened for classical music and jazz, with high-frequency instruments such as violin and flute being the most unlucky ones. It is scientifically proven now that for the most accurate sound the sampling rate has to be not lower than 64 kHz. This, of course, is far beyond Audio CD capabilities.

    To address these issues the DVD-Audio format was developed. It took more time to approve than DVD-Video, as DVD-Forum had to justify between two alternative technologies: one from Toshiba and the other from Sony-Philips (they also developed Audio CD) alliance. The problem was to decide, which format was better. Both of them successfully solved the drawbacks of Audio CD.

    Toshiba simply improved existing PCM standard and turned it into 24-bit one. The dynamic range grew to 144db and sampling rate soared up to 192 kHz. These values exceed human ear capabilities by a good margin. This format also had support for multi-channel sound.

    Sony and Philips took another route and invented new single-bit audio format called DSD (Direct Stream Digital). The idea was to read data from disk in significantly smaller quantities (one bit at a time, compared to 16 bits for Audio CD and 20-24 bits for DVD-Audio) but with insane sampling rate - 2.8224 MHz. Similar principle is actually employed in the vinyl audio pickup. Due to this the dynamical range for new format grew to 120db. Apart from that multi-channel support was added along with compatibility with Audio CD. The latter was achieved by adding second layer with sound in Audio CD format. If such disk is inserted in generic Audio-CD player, it will be played just like any Audio CD, with all limitations of that format.

    At the end, in 1999 Toshiba finally prevailed. This was due to several reasons. First of all, DSD soundtrack is hard to make even in studio environment. Second, when this technology first appeared, there was no special equipment that could support it. All existing devices were able to work with PCM sound only, and DSD required conversion. This eventually reduced the benefits of DSD to zero. Toshiba, however, selected DVD as a medium for the new format, which made it possible to create audio disks in this format even at home. The situation with Sony-Philips creation was completely different. It had to be recorded on special disks, which were similar in appearance and sizes to normal DVD, but totally different otherwise. These disks also required special equipment for printing and recording. All of these were the reasons why Toshiba received rights for the DVD-Audio brand-name.

    But that didn't stop Sony and Philips and they decided to introduce their own format - regardless of DVD-Forum decision. The new format was called Super Audio Compact Disc. As a result, there was no single standard and neither SACD nor DVD-Audio managed to even get close to ordinary Audio-CD sales volumes.

    The difference in sound between SACD and DVD-Audio wasn't spotted even by most "advanced" audiophiles.

    Let's examine each of the technologies in details:

    DVD-Audio

    Since DVD-Audio standard is based on ordinary DVD, such disk can be double-sided or double-layered or a combination of these two. Unlike SACD, a sound can be recorded on DVD-Audio in different quality and in various formats, stereo or multi-channel. Sampling rate for DVD-Audio can vary from 44.1 kHz up to 192 kHz (however sound can only be stereo at 192 kHz, as it is simply not enough space for multi-channel sound of that quality). Generally, DVD-Audio is able to deliver 1000 times more accurate sound when compared with Audio CD!

    To be able to fit multi-channel uncompressed sound (which usually takes lots of space) developers have used special lossless compression technology called MLP (Meridian Lossless Packing), which in some ways is similar to

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    e and therefore lost in record.

    Apart from dynamic range it also became clear that Audio CDs have insufficient sampling rate. Digital record consists of small pieces called samples, each of them contains information about sound in particular point in time. The more samples are per unit of time, the higher is the quality of record. Basically, sample is a digital analogue of sound oscillation and for that reason they are measured by using the same unit, hertz (Hz). The maximum frequency of sound that humans can hear is around 20 thousands hertz (20 kHz). To reproduce sound accurately, the sound information have to be digitized with sampling rate higher than a human can hear.

    During Audio-CD development it was believed that doubling this rate - up to 44.1 kHz would be sufficient. But for some records part of sound was lost and turned into noise. Especially often that happened for classical music and jazz, with high-frequency instruments such as violin and flute being the most unlucky ones. It is scientifically proven now that for the most accurate sound the sampling rate has to be not lower than 64 kHz. This, of course, is far beyond Audio CD capabilities.

    To address these issues the DVD-Audio format was developed. It took more time to approve than DVD-Video, as DVD-Forum had to justify between two alternative technologies: one from Toshiba and the other from Sony-Philips (they also developed Audio CD) alliance. The problem was to decide, which format was better. Both of them successfully solved the drawbacks of Audio CD.

    Toshiba simply improved existing PCM standard and turned it into 24-bit one. The dynamic range grew to 144db and sampling rate soared up to 192 kHz. These values exceed human ear capabilities by a good margin. This format also had support for multi-channel sound.

    Sony and Philips took another route and invented new single-bit audio format called DSD (Direct Stream Digital). The idea was to read data from disk in significantly smaller quantities (one bit at a time, compared to 16 bits for Audio CD and 20-24 bits for DVD-Audio) but with insane sampling rate - 2.8224 MHz. Similar principle is actually employed in the vinyl audio pickup. Due to this the dynamical range for new format grew to 120db. Apart from that multi-channel support was added along with compatibility with Audio CD. The latter was achieved by adding second layer with sound in Audio CD format. If such disk is inserted in generic Audio-CD player, it will be played just like any Audio CD, with all limitations of that format.

    At the end, in 1999 Toshiba finally prevailed. This was due to several reasons. First of all, DSD soundtrack is hard to make even in studio environment. Second, when this technology first appeared, there was no special equipment that could support it. All existing devices were able to work with PCM sound only, and DSD required conversion. This eventually reduced the benefits of DSD to zero. Toshiba, however, selected DVD as a medium for the new format, which made it possible to create audio disks in this format even at home. The situation with Sony-Philips creation was completely different. It had to be recorded on special disks, which were similar in appearance and sizes to normal DVD, but totally different otherwise. These disks also required special equipment for printing and recording. All of these were the reasons why Toshiba received rights for the DVD-Audio brand-name.

    But that didn't stop Sony and Philips and they decided to introduce their own format - regardless of DVD-Forum decision. The new format was called Super Audio Compact Disc. As a result, there was no single standard and neither SACD nor DVD-Audio managed to even get close to ordinary Audio-CD sales volumes.

    The difference in sound between SACD and DVD-Audio wasn't spotted even by most "advanced" audiophiles.

    Let's examine each of the technologies in details:

    DVD-Audio

    Since DVD-Audio standard is based on ordinary DVD, such disk can be double-sided or double-layered or a combination of these two. Unlike SACD, a sound can be recorded on DVD-Audio in different quality and in various formats, stereo or multi-channel. Sampling rate for DVD-Audio can vary from 44.1 kHz up to 192 kHz (however sound can only be stereo at 192 kHz, as it is simply not enough space for multi-channel sound of that quality). Generally, DVD-Audio is able to deliver 1000 times more accurate sound when compared with Audio CD!

    To be able to fit multi-channel uncompressed sound (which usually takes lots of space) developers have used special lossless compression technology called MLP (Meridian Lossless Packing), which in some ways is similar to

    Your Home Based E-Business In A Global Market
    Most companies will try buying and/or selling products around the world. When choosing e-commerce software or looking for an new off-shore supplier of products for your business, check these factors, which indicate how strongly the software or the potential supplier is focused on the international market;• Are transactions in different currencies supported?• Is the software supported in all countries where you do business?• Can the software handle those countries' taxation & reporting laws?• Is the software available in languages other than English?Most E-Business software is Country SpecificWarning: E-Business software is made country specific because different countries have their own tax and business regimes. Taxes are levied differently in the USA from the way they are in Singapore for instance. The software may be manufactured in one country with different versions produced for customers in each country the software is sold in. Because of their local knowledge and experience, the licensed distributors in each country may have the right to customize the program's source code so the software is usable in their country. Totally different country specific versions of QuickBooks are sold in the USA and Singapore. Some more expensive software suites like ACCPAC, MICROSOFT GREAT PLAINS and SAP etc are customizable by the user and can be used in any country.Other Key Elements to Consider• Capacity - Software may be limited in the maximum number of customers, vendors, inventory items etc.• Reporting Capabilities – Check the software produces sufficient standard reports for your needs. If not, can you design and produce customized reports with minimal time and effort?• Ease of Input – You w
    he DVD-Audio format was developed. It took more time to approve than DVD-Video, as DVD-Forum had to justify between two alternative technologies: one from Toshiba and the other from Sony-Philips (they also developed Audio CD) alliance. The problem was to decide, which format was better. Both of them successfully solved the drawbacks of Audio CD.

    Toshiba simply improved existing PCM standard and turned it into 24-bit one. The dynamic range grew to 144db and sampling rate soared up to 192 kHz. These values exceed human ear capabilities by a good margin. This format also had support for multi-channel sound.

    Sony and Philips took another route and invented new single-bit audio format called DSD (Direct Stream Digital). The idea was to read data from disk in significantly smaller quantities (one bit at a time, compared to 16 bits for Audio CD and 20-24 bits for DVD-Audio) but with insane sampling rate - 2.8224 MHz. Similar principle is actually employed in the vinyl audio pickup. Due to this the dynamical range for new format grew to 120db. Apart from that multi-channel support was added along with compatibility with Audio CD. The latter was achieved by adding second layer with sound in Audio CD format. If such disk is inserted in generic Audio-CD player, it will be played just like any Audio CD, with all limitations of that format.

    At the end, in 1999 Toshiba finally prevailed. This was due to several reasons. First of all, DSD soundtrack is hard to make even in studio environment. Second, when this technology first appeared, there was no special equipment that could support it. All existing devices were able to work with PCM sound only, and DSD required conversion. This eventually reduced the benefits of DSD to zero. Toshiba, however, selected DVD as a medium for the new format, which made it possible to create audio disks in this format even at home. The situation with Sony-Philips creation was completely different. It had to be recorded on special disks, which were similar in appearance and sizes to normal DVD, but totally different otherwise. These disks also required special equipment for printing and recording. All of these were the reasons why Toshiba received rights for the DVD-Audio brand-name.

    But that didn't stop Sony and Philips and they decided to introduce their own format - regardless of DVD-Forum decision. The new format was called Super Audio Compact Disc. As a result, there was no single standard and neither SACD nor DVD-Audio managed to even get close to ordinary Audio-CD sales volumes.

    The difference in sound between SACD and DVD-Audio wasn't spotted even by most "advanced" audiophiles.

    Let's examine each of the technologies in details:

    DVD-Audio

    Since DVD-Audio standard is based on ordinary DVD, such disk can be double-sided or double-layered or a combination of these two. Unlike SACD, a sound can be recorded on DVD-Audio in different quality and in various formats, stereo or multi-channel. Sampling rate for DVD-Audio can vary from 44.1 kHz up to 192 kHz (however sound can only be stereo at 192 kHz, as it is simply not enough space for multi-channel sound of that quality). Generally, DVD-Audio is able to deliver 1000 times more accurate sound when compared with Audio CD!

    To be able to fit multi-channel uncompressed sound (which usually takes lots of space) developers have used special lossless compression technology called MLP (Meridian Lossless Packing), which in some ways is similar to

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    ith sound in Audio CD format. If such disk is inserted in generic Audio-CD player, it will be played just like any Audio CD, with all limitations of that format.

    At the end, in 1999 Toshiba finally prevailed. This was due to several reasons. First of all, DSD soundtrack is hard to make even in studio environment. Second, when this technology first appeared, there was no special equipment that could support it. All existing devices were able to work with PCM sound only, and DSD required conversion. This eventually reduced the benefits of DSD to zero. Toshiba, however, selected DVD as a medium for the new format, which made it possible to create audio disks in this format even at home. The situation with Sony-Philips creation was completely different. It had to be recorded on special disks, which were similar in appearance and sizes to normal DVD, but totally different otherwise. These disks also required special equipment for printing and recording. All of these were the reasons why Toshiba received rights for the DVD-Audio brand-name.

    But that didn't stop Sony and Philips and they decided to introduce their own format - regardless of DVD-Forum decision. The new format was called Super Audio Compact Disc. As a result, there was no single standard and neither SACD nor DVD-Audio managed to even get close to ordinary Audio-CD sales volumes.

    The difference in sound between SACD and DVD-Audio wasn't spotted even by most "advanced" audiophiles.

    Let's examine each of the technologies in details:

    DVD-Audio

    Since DVD-Audio standard is based on ordinary DVD, such disk can be double-sided or double-layered or a combination of these two. Unlike SACD, a sound can be recorded on DVD-Audio in different quality and in various formats, stereo or multi-channel. Sampling rate for DVD-Audio can vary from 44.1 kHz up to 192 kHz (however sound can only be stereo at 192 kHz, as it is simply not enough space for multi-channel sound of that quality). Generally, DVD-Audio is able to deliver 1000 times more accurate sound when compared with Audio CD!

    To be able to fit multi-channel uncompressed sound (which usually takes lots of space) developers have used special lossless compression technology called MLP (Meridian Lossless Packing), which in some ways is similar to

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    Most people in medium and large businesses, government, non-profits and other organizations spend the majority of their time in meetings. As managers and executives, their most valuable resource is their time and that of their people. And yet more time is wasted in unproductive meetings than all other activities combined. Making meetings more productive is one of the most important thinks and any business or other organization can do. There are six key steps to making meetings more effective.People. Insure that the right people are at the meeting. That they are there on time and that they focus on the meeting rather than taking cell phone calls and doing their e-mail. As much as people complain about meetings, people hate to feel they are missing something important. They feel excluded. It is critical that only the people who need to be at meetings attend them. Presenters who are not key participants should attend meetings only to give their presentations.Purpose. While most meetings have a purpose, that purpose must be clearly stated in the meeting invitation and again at the beginning of the meeting. Someone should be designated to keep the meeting focused on that purpose. Any issues that arise that are not tied to the purpose should be noted and captured for another appropriate meeting. Also, at the end of the meeting, the purpose of the meeting should be stated again prior to the attendees leaving. Invitation – Opening – Stay on Topic – Closing.Meeting type. Within the purpose, there are three types of meetings. Meetings must to be limited to information, decision making or idea floating. Informational meetings are those where people present new information to the group. These meetings need to leave time for qu
    rmat was called Super Audio Compact Disc. As a result, there was no single standard and neither SACD nor DVD-Audio managed to even get close to ordinary Audio-CD sales volumes.

    The difference in sound between SACD and DVD-Audio wasn't spotted even by most "advanced" audiophiles.

    Let's examine each of the technologies in details:

    DVD-Audio

    Since DVD-Audio standard is based on ordinary DVD, such disk can be double-sided or double-layered or a combination of these two. Unlike SACD, a sound can be recorded on DVD-Audio in different quality and in various formats, stereo or multi-channel. Sampling rate for DVD-Audio can vary from 44.1 kHz up to 192 kHz (however sound can only be stereo at 192 kHz, as it is simply not enough space for multi-channel sound of that quality). Generally, DVD-Audio is able to deliver 1000 times more accurate sound when compared with Audio CD!

    To be able to fit multi-channel uncompressed sound (which usually takes lots of space) developers have used special lossless compression technology called MLP (Meridian Lossless Packing), which in some ways is similar to PC archiving packages such as Zip or RAR.

    In order to be compatible with generic DVD players, DVD-Audio disks can contain copy of the soundtrack encoded in Dolby Digital and DTS on the other side of the disk. Such disks are known as Hybrid DVD-Audio disc - HDAD. Sometimes it is possible to encounter disks that have only Dolby Digital or DTS encoded soundtracks, however, such disks hardly have anything to do with DVD-Audio.

    Apart from this, several sound-recording companies have developed in 2004 a new format called DualDisc. Essentially it is a double sided disc, one side of which is single- or double layer DVD and the other side is plain CD. The CD format used in such disk is slightly different form normal CD. Standard thickness of CD or DVD disk is 1.2mm. Audio CD layer occupies all that space, and DVD requires only half of it, or 0.6mm. Therefore it is not possible to create a disk with both proper DVD and CD layers as it would be 2mm thick and won't fit in any drive. Due to this reason the developers decided to cheat a little bit and reduced thickness of Audio CD layer to 0.9mm. As a result, it is possible to play DualDisc on most players, but it is still too thick and doesn't fit in most cars CD. In addition to this it can damage some Hi-End equipment, and will also void the warranty. Another interesting effect of making Audio CD layer thinner is the inability to record anything to it via normal CD recording methods due to spherical aberrations. This means that laser is not able to focus on data pits and "see" only blurred image which cannot provide any actual data. The problem was solved my making pits bigger, however their amount reduced. As a result, the capacity of disc has dropped and instead of standard 74 minutes such disks contain only 60, and there are only 525 MB available instead of 650.

    Most probably DualDisc technology won't last long. There actually is a new technology to replace it - Onedisc/DVDplus. German engineers managed to create hybrid medium with standard thickness - 1.2mm. More importantly, the capacity of CD side doesn't suffer; it still is able to contain 650mb of data or 74 minutes of audio. The developers of this standard, however, do not share their secrets, and how exactly did they managed to overcome obvious problems is still a mystery. Many recording studios have purchased license for this technology and Onedisc will probably soon appear on shop shelves.

    Beside audio data, DVD-Audio disc is able to hold any type of DVD-Video data. It can be video, menu, slides, etc (it is also possible to put sound in DVD-Audio format on DVD-Video disk). The standard also provides new technology for storing text information, some sort of replacement for CD-Text. Disk can contain titles, lyrics, information about performers, etc. Text can be viewed on TV or audio player screen. Just as DVD-Video, DVD-Audio can provide a selection of several languages for text info.

    DVD-Audio copy protection is also worth mentioning. After famous DVD-Video hack manufacturers decided to postpone DVD-Audio until better protection becomes available. This better protection was CPPM (Content Protection for Pre-recorded Media), which include several different protection measures:

    1. According to the new standard, DVD-Audio data is encrypted. Unique set of keys can only be kept in legal player device (that is, DVD-Audio player that comply with CPPM requirements). In case if keys do not match the disk (for example when DVD-Audio player is manufactured without appropriate license), it will not be possible to decrypt the data and DVD-Audio disk simply won't play.

    Theoretically, it is possible to copy such keys by hacking the device, but practically it is rather useless as if stolen keys would be revealed, all later releases of DVD-Audio disks simply won't support them. And most manufacturers perform monthly revision of keys.

    2. Contents of DVD-Audio are also bound to the physical medium. This is achieved by recording "digital watermarks" on the disk. This hidden information contains disk details and the information about how many times this disk can be copied. Watermarks are recorded with intervals of several seconds and if the player discovers that watermarks doesn't match medium it instantly stops playback.

    Apart from this, if DVD-Audio player is equipped with Firewire (iLink) digital out, it won't be possible to use it for illegal copying too. All outgoing information is encrypted and because of this it only will be possible to connect the cable to an amplifier or receiver that supports encryption. It will not be possible to connect player to the PC and therefore

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