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Dolby Digital and DTS Digital Surround - Identifying the main differences between these multichannel sound formats

Many audiophiles and home theater enthusiasts argue that DTS surround sound formats can deliver higher quali

According to USFDA, a combination product is one composed of any combination of a drug and device; biological product and device; drug and biological product

ty audio in comparison to their corresponding Dolby formats, with improved dynamic range, better representation of subtle detail in audio content, and improved signal-to-noise ratio.

Partly, this reasoning arises because DTS surround sound

; or drug, device, and biological product and fixed dose combination would include two or more combinations of drug.

Examples of combination products may in

is usually encoded at a higher data rate than Dolby Digital and its lineup of associated formats.

This is more than understandable. We are dealing with lossy compression techniques. A higher bit-rate for the same format should normally impl

lude drug-coated devices, drugs packaged with delivery devices in medical kits, and drugs and devices packaged separately but intended to be used together.

ies superior sound during playback, as less compression in the encoding process should result in a better representation of the original sound source.

In this Dolby vs DTS debate, DTS people argue that they are after 'sonic perfection,

here is enormous increase in the number of combination products entering the market in the recent years. Combination products have proven advantages but fixe

ot space consumption' - hence the higher bit rate and lower compression.

Dolby would counteract that their codec is more efficient and therefore, it can run at a lower bit rate.

In other words, one cannot simply draw conclusion on sou

d dose combinations are still in the process of convincing regulatory authority on their advantages over the single ingredient formulations.

Combination pro

nd quality based on raw bit rates and compression figures alone; it also depends on how well designed are the encoding and decoding algorithms. And this makes sense too, but then...

There are relatively big differences in raw bit r

ucts have become life saving products for the pharmaceutical companies who doesn’t have many innovative molecules in their product pipeline and have been inc

ates and compression levels when comparing Dolby vs DTS sound formats, implying a too wide a difference in codec efficiency - about 3 times as much - in favor of Dolby. Is it possible that Dolby sound formats achieve this level of codec

easingly used in the product life cycle management. Even the companies having product patents are trying to extend their product life cycle through the combi

efficiency?

The truth is that when dealing with different sound formats, the whole equation starts to get extremely complicated; it is not that easy to define what makes better sound.

This Dolby vs DTS is a much debated issue,

nation products and maximize the revenues. But the companies involved in this practice are overlooking that they are burdening the patients both economically

but in reality is it true that one is better than the other?

To understand why this Dolby vs DTS surround sound controversy, it is necessary to have an understanding of the main differences between these formats. In particular, the

and physically. They need to rightly judge the benefits of the combination products and they have to even look at the risks involved when combining the produ

re are significant differences in bit-rate and compression levels as applicable to Dolby Digital and DTS Digital Surround. There are also important differences in the way these formats are implemented in movie house applications and in home

ts. Some of the combination products were well accepted by physicians while others suffered. Companies involved in development of combination products are fi

entertainment.

It is not the scope of this write-up to go into these details; for the relevant information on the differences between Dolby and DTS, please read the full article appearing on Practical Home Theater Guide at

ding difficulty in defining their combination products and facing various challenges from selecting a combination to marketing it.

Following aspects would a

http://www.practical-home-theater-guide.com/dolby-vs-dts.html.

At the same time, it is important to realize that these same differences between these

dd to the challenges in developing combination products:

Which markets to tap where the combination products can do fairly well?
Which combination prod

wo formats have actually given rise to this Dolby vs DTS controversy.

So where does this Dolby vs DTS debate leads? Sound quality is an extremely subjective issue and therefore it is not easy to define what constitutes bet

cts are meaningful and rational?
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin

ter sound. Opinions vary when comparing Dolby vs DTS and range from 'DTS is better' to 'Dolby Digital and DTS Surround Sound are pretty much the same'.

...and what do we say about this Dolby vs DTS debate?

tions increase the patient compliance?
What would be the developing cost?
How to tackle the risks encountered during combination product developmen

Both Dolby Digital and DTS Surround are capable of achieving similar results in delivering surround sound, even though the lower compression and higher bit-rate of DTS Digital Surround should theoretically yield apparent benefits in sound

t?

As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel

quality.

At the same time, one cannot ignore the fact that these two formats make use of different coding schemes and syntax to perceptually compress audio.

This means that efficiency in terms of data utilization between these two formats

ping new procedures for reviewing their safety, efficacy and quality.

Professional from academic institutions, pharmaceutical industries, health care indust

s different. Therefore, direct comparison of the respective Dolby and DTS sound formats based solely on their raw bit rates, cannot be taken as an objective measure of sound quality.

Thus, while it is objectively possible to compare the res

y and representatives from various regulatory agencies are working out to design the regulatory requirements for manufacture and sale of combination products

ultant sound quality for the same audio format encoded at different bit rates, say in a movie house application and in home entertainment, yet it is not so straightforward when dealing with different formats.

Rather, for identically sourced

.

As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de

audio content, it would be much easier for the listener during Dolby vs DTS 'blind' listening tests to notice a change in sound quality when changing the playback equipment between different brands, than when changing from Dolby to DTS.

elopment. They need to be wiser in analyzing the market trends and the regulatory requirements.

Companies that provide selfless information through particip

ong> In other words, you need a thoroughly refined audio playback setup to bring out that subtle difference in sound quality between these two formats.

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tion in industry events and feedback to regulatory authorities would be able to face the challenges and will be successful in developing combination products

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