Propeller Head Plaza

RE: Ah. That is interesting.

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"What advantage does this scheme have over driving a single driver with the complex PWM signal? If this is for steering frequencies without a crossover then wideband drivers seem less useful, true?"

Good questions. Wish I knew the answers. I was hoping that this topic would instigate some discussion that might contain the answers, but so far it seems to be used as just another opportunity for subjectivists to pile insults upon anyone who has remotely objectivistic leanings.

The primary advantage I think I see with this approach is the ease of integrating some manner of DSP to allow an appreciably adjustable output and steerability of the sound. I'm not sure, but I believe the recent Yamaha soundbar that allows for the simulation of multiple channels from a single bank of transducers works on just such a principle. So, there is the potential here to significantly reduce room effects on the sound quality while improving the immersive nature of the reproduced sound should the future bring multi-channel, high-res audio such as the 10.2 matrixed audio I've heard mention of for movies.

I'll be honest, I don't know how exactly the PCM signal would be divided up to the transducers. I think, only think, that the signal as a whole would be broken apart so that no single driver sounds like its reproducing music, regardless of frequency, but that together they interact to release a coherent waveform precisely emulating the encoded sound. I suppose this would in effect be creating something similar to a single driver operating in true full-range fashion with vanishingly small distortion.

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