The new method revealed particularly useful for describing the performance of a sound system coupled with a small, noisy reproduction space, as it is the case for car audio systems. USA A study was done to subjectively compare and rank the sound field characteristics of a vehicle equipped with a high end home surround sound processor and to assess compatibility of several discrete and matrix decoding modes in combination with both discrete and down mixed source materials. The study design details and analysis results are reported. The auxiliary loudspeaker cone known as a whizzer is used to gain high frequency amplitude response in applications where cost or weight constraints prohibit a separate, dedicated high frequency transducer. The functional mechanism of the whizzer is not particularly well understood.
Performance prediction is difficult.
Related here are test results, laser vibrometer images, anecdotes, and design directions that may aid future whizzer designs and stimulate the development of better design tools. The arrival of multimedia in car entertainment presents a challenge for the audio playback system. The majority case will continue to be the playback of 2 channel sources such as CD and radio but the system also needs to reproduce various 5.1 formats from new sources such as DVD, usually for the rear seat. This paper discusses the alternative architecture and processor options and proposes a Logic 7 system, adapted for automotive applications, as an elegant solution, providing enhanced spatial reproduction of 2 channel material and the full surround effect from 5.1 sources. On the objective side are technical measurements that produce graphical plots of data.