All Engineering is a company with a history of innovation in many fields within the world of electronic design. Within the field of HiFi All Engineering
is primarily known for its brand Metrum Acoustics. Particularly within the field of electrostatic speaker systems All Engineering has experience dating
back to 1989. In a later stadium of development broader applications for electronics were added to that. For the industry a diverse selection of
products has been created, with its principles always founded in the fields of electronic and acoustic systems with digital signal processing playing
a significant part.
When one turns the attention to digital systems within the field of HiFi, the diversity of its components is extremely limited. The manufacturers that
supply these components decide how signals should be processed by not supplying alternatives and therefore also greatly influencing the sound
image that is created. The current trend among manufacturers is to include techniques such as ‘oversampling’ and ‘up sampling’ within the chip
itself, forcing designers to utilize these techniques for their products. Incidentally, it also means that many brands systems use the same building
blocks and that the sound image of these systems betrays what components have been used. If a designer feels that things should be done
differently, then he is forced to choose between the limited variety of building blocks, or to find refuge within the selection of far older components.
Techniques such as ‘oversampling’ and ‘up sampling’ were created to fulfill the need to smoothen the conversion process from ‘digital to analogue’
and to prevent phase distortion. Particularly during the years directly after the introduction of the CD-player, the conversion methods that were used
proved not to be free of sonic artifacts and thus insufficient. In response to that strong filtering was introduced and the oversampling technique was
born. Though fans of the technique can’t stop singing its praises, fact is that oversampling and up sampling have disadvantages which manifest as
transient response in earlier mentioned systems.
Nowadays there is a group designers that prefers ‘non-oversampling’ (or shortly, NOS), but that has to make do with old chips, with all the
consequences thereof. All Engineering has dedicated a lot of its time and attention to researching the premise and endorses the validity of the
audible benefits, up to a point. The question then turned to removing the sonic artifacts, without resorting to oversampling. A question that has been
answered by our Transient products, digital to analogue converters that has been constructed with modern, industrial chips and which are free of
many of the disadvantages of the past. On this dedicated website you can read how our products turned from ideas into several OEM products.
Transient is an OEM product which can be used by any audio related Company who is involved by creating the best digital audio devices. The
Transient products are not created by theory and measuring only, but is most based on long listening sessions. If you go for the best specs, we are
probably not the right partner for you but if music is driving you, we invite you to look around. Over time more products will see the light but still
there is a change that you cannot find the right product for your application. In such cases we probably can match our standard products or we are
able to design a product that meets your needs.