[耳機撚]召集大耳牛、枱式耳機系統用家(99)

... QRONO d2a filters are optimised for the musical spectrum of each input sample rate. In all cases, they preserve musicality but ensure there are no ultrasonic outputs that could damage downstream equipment like amplifiers and loudspeakers.
Finally, we use a technique called noise shaping to mask any low-level imaging in the ultrasonic region with benign noise. This noise also helps improve the performance of the DAC chip. The shaped noise maintains the signal’s dynamic range in the audible band but reduces the number of bits required to represent the signal. This means we can use the most linear region of the DAC chip’s dynamic range.
Each QRONO d2a implementation is specifically tuned for the DAC chip in that product.

We started with a question, “what was missing from digital music?”. Perhaps we should have asked, “what was added by digital capture and playback?”. We now know that the ADCs used in recording studios, and our DACs used for playback, added time blur from the ringing in their filters.

The audible improvement, while subtle, is immediate. Removing the time smear reveals textures previously obscured. Micro dynamics are improved, and instruments are clearly delineated, enhancing the stereo soundstage and image. Music flows naturally, adding realism and reducing listener fatigue.