SENIOR ENGINEERS PUT APT TECHNOLOGY TO THE TEST

BELFAST-based Audio Processing Technology recently held an intensive series of listening tests, entitled Open Your Ears, which were designed to highlight the audiophile qualities of its apt-X products.
The tests took place at Solid State Logic’s headquarters in Oxfordshire and were conducted in a controlled studio environment to ensure accuracy of results. Leading figures from the commercial UK broadcast sound industry were invited to compare apt-X™ with the companding technique, J.41.
J.41 requires 768kbit/s for 15kHz Stereo uni-directional audio whereas Enhanced 24-bit apt-X™ requires 384kbit/s fully duplex, which means it can offer twice the performance with half the data requirement. apt-X™ also offers a significantly greater dynamic range.
During the tests a series of tracks were played through J41 and through Standard and Enhanced apt-X. The guests were then asked to score the results of the blind test and in nearly every case apt-X came out ahead. The listening tests were also backed up by a technical presentation on Enhanced apt-X™.
APT’s commercial director Jon McClintock, adds: “Feedback from other engineers attending the day has also been excellent, with everyone commenting that it was a useful event. We hope to repeat the success of the listening tests in other markets and anyone interested in attending is welcome to contact us for further details.” (SP)