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WHITE PAPER: 

New PC Sound Requirements

 

Attacking MP3 File Compression and PC Fidelity Input/Output for 
HOLISTIC Listening Improvement 

 
 

December 9, 2002 

 
Traditionally, sound in personal computers has not really been 
about listening quality. Beeps, chirps and other simple tones 
used in personal computers were originally created to 
augment various commands, not to support an alternative 
listening experience. Used primarily as audio cues, personal 
computer sounds were tied to games, productivity applications 
or used as a single element in a brand, as in the Microsoft® 
“chord” that plays upon the opening of the Windows® 
operating system.  
 
Today, however, PC sound is going through a renaissance. 
Because of the proliferation and increasing sophistication of 
personal computers – and the continued migration of digital 
media into the home in general – consumers now want to 
listen to their computers in much the same way they listen to 
their stereos or TVs. Now, consumers want to improve the 
quality of entertainment experiences that are 

uniquely and 

conveniently

 provided by their computers. 

 
Manufacturers are responding. New computer introductions 
are emerging onto the market that position the PC as the 
staging area for home entertainment. In addition to enhanced 
music capability, these PCs have TV tuner cards, Personal 
Video Recorders (PVR), online program guide, etc. 
 

Philips White Paper: New PC Sound Requirements 

Page 1 of 9

 

Summary of Contents for Dynamic Edge 4.1

Page 1: ... Windows operating system Today however PC sound is going through a renaissance Because of the proliferation and increasing sophistication of personal computers and the continued migration of digital media into the home in general consumers now want to listen to their computers in much the same way they listen to their stereos or TVs Now consumers want to improve the quality of entertainment exper...

Page 2: ...ly described as near CD quality Conventional wisdom says that the data loss does not affect the listening experience of the average user i e sounds that the human ear can t hear louder noises are emphasized This however was a generous viewpoint established in light of the significant offsetting benefits of reduced file size and the accepted usage models of PCs a couple of years ago The fact is the...

Page 3: ...d manufacturers need to get out from under the hood of the car as it were and consider where the car is going Consumers bring many more variables to the decision purchase mix vs vertical markets each of which must be addressed These are 1 Ease of use 2 Reproduced sound quality especially as it relates to MP3 files 3 Price 4 Input types 5 Output variables 6 Environment Clearly managing all of these...

Page 4: ...e type and the room or headphones where the sound is going to be played Combining input and output with the sound card itself results in high quality total holistic sound optimization Importantly the end user also has a means of easily identifying and manipulating variables that affect sound quality in context of their particular listening experience So while Sound Agent 2 will automatically optim...

Page 5: ...e extensive compatibility to existing standards such as DS3D EAX 2 0 and A3D 1 0 The Sonic Edge 5 1 also includes 1 5 1 Channel Surround from any source material Stereo sources from CDs MP3s and PC games are transformed into 6 full channels of true surround sound using QSound s exclusive QMSS 5 1 technology While other solutions simply mirror the front stereo speakers in the rear channels QMSS ana...

Page 6: ...input signal itself In a sense the filter ignores the signal and blindly makes its assigned modification Static filtering must be judiciously applied With more dramatic filtering i e high boost levels a truly artificial tonal characteristic is imparted This is perceived by the listener consciously or unconsciously according to their level of sophistication as being systemic that is separate and in...

Page 7: ... content dependent manner QSizzle brings liveliness and sparkle to midrange and upper frequencies while QRumble restores warmth and punch to the low end of the spectrum Usage Example To illustrate the Holistic Sound Management capability of Philips Sound Agent 2 and its sound cards consider this complex but not unrealistic example Joe is playing Half Life a game that supports 3D positional audio v...

Page 8: ...ys the first chapter of Spiderman Again rendered through Sound Agent 2 in enhanced 5 1 channel QSurround Joe adds a reverb Theater preset via QSound s Environmental Modeling QEM technology to the DVD playback The result is a custom in the theater like experience As Joe and Mike watch Spiderman Joe is still monitoring his game in the background to make sure he is in the action No other sound card m...

Page 9: ...est with sales of 28 8 billion EUR 32 3 billion in 2001 It is a global leader in color television sets lighting electric shavers medical diagnostic imaging and patient monitoring and one chip TV products Its 184 000 employees in more than 60 countries are active in the areas of lighting consumer electronics domestic appliances components semiconductors and medical systems Philips is quoted on the ...

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