Originally Posted by stv014
Originally Posted by the wizard of oz
Is there an app to generate sine tones on the DX100? I don't trust the 16bit 48kHz ALAC's I downloaded. With those on the DX100 I hear all the way up to 23kHz, but from 21.5kHz on it can't be the actual tone I'm hearing but rather hardware generated noise, since it doesn't follow the crescendo in treble, similarly to what the Mac Mini's headphone output was producing. So either these noises were created while recording these tones, either both the Mac Mini's headphone out and the DX100's headphone out are inadequate in handling those tones.
xnor's FLAC files that are available with 48 kHz and 96 kHz sample rate (the latter is recommended if the hardware supports it) are fine. If there is any problem playing those, it is specific to your system.
I realize I hadn't reported back on this yet. The FLAC files do play back better than the ALAC ones, funnily enough. Something with the decoding process maybe.
So with the 24bit/96kHz FLAC files on the DX100 paired with my W5000's I can hear up to 21.5kHz @ 230 volume setting, on Lo Gain; up to 22kHz on Mid Gain; and 22.5kHz on Hi Gain; 230 being the highest volume I listen to with my W5000's, staying mostly on Lo Gain, Mid being only for certain albums that can use some extra oomph. I never use the Hi Gain setting since not only does it get way too loud, but the sound signature turns to a very pronounced V shape.
My usual listening volume is 210~220, and at that volume my hearing extends barely over 20kHz, I can just about make out 20.5kHz.