TOPPING製デジタルアンプ＆DAC Part46

名無しさん＠お腹いっぱい。

ak4490の載ったRME ADI-2の説明書に
あるフィルターに関する説明

https://www.rme-audio.de/downloads/adi2dacr_e.pdf

NOS (Non-Oversampling, SuperSlow)
The DAC includes another filter which is called Super Slow in its data sheet. The impulse re-
sponse looks perfect, but checking the output signal with an Oscilloscope reveals steps that are
more typical for so called Non-OverSampling (NOS) devices, so we renamed it NOS within the
DAC filter menu. Note that there is no audible distortion, the steps equal high frequency harmon-
ics that are mostly higher than 20 kHz. Please also note that Slow and NOS filters cause much
more aliasing into the audio band and out-of-band noise than Sharp filters.

流石に世界的に名の知れるプロ機材屋ですな
説明が誠実
nosを売りにしてるどこぞのローカル
なガレージメーカーとは違いますなw