dcibel's latest activity
-
Ddcibel replied to the thread REW Beta Release REW API beta releases.Thanks John, I will try and find some time this weekend to test the improved FSAF routine. As a simple feature request, since FSAF...
-
Ddcibel replied to the thread FSAF (Fast subband adaptive filtering) measurement.You've missed the word "not".
-
Ddcibel replied to the thread FSAF (Fast subband adaptive filtering) measurement.I think the question is simply why the noise floor SPL is rather high at 50dBSPL, a quiet room would expect background noise in the...
-
-
Ddcibel reacted to John Mulcahy's post in the thread FSAF (Fast subband adaptive filtering) measurement with
Like.
The sweep noise floor plot takes into account the process gain applicable to the sweep length so that the noise floor plot can... -
Ddcibel reacted to John Mulcahy's post in the thread REW Beta Release REW API beta releases with Like.
Builds updated today (beta 61) with these changes: Added: API /measurements/{id}/command entries to Wrap phase and Unwrap phase for a...
-
Ddcibel replied to the thread FSAF (Fast subband adaptive filtering) measurement.It's been a while since I took these measurements, I checked and the FSAF measurement used a 15s music clip, however I believe this fact...
-
Ddcibel replied to the thread FSAF (Fast subband adaptive filtering) measurement.Driver is a B&W FST. ESS is able to resolve a much lower noise floor than FSAF. I highlighted previously, my own measurement below. Top...
-
-
Ddcibel replied to the thread Measuring capacitors and inductivities not related to speakers.Keep in mind that most audio interfaces have DC blocking caps on the input, so you may not find very high signal level at 0.2Hz, SNR...
-
Ddcibel replied to the thread Measuring capacitors and inductivities not related to speakers.0.2Hz wavelength is 5 seconds long, so total window needs to be at least 5 seconds, simple as that. How much left and right depends on...
-
Ddcibel replied to the thread REW Testing and USB cable lengths.FWIW USB 2.0 spec is a maximum of 16ft for any cable. Any length longer than that is "at your own risk", there are solutions such as USB...
-
Ddcibel replied to the thread Measuring capacitors and inductivities not related to speakers.Sweep can start at 0Hz, but IR window needs to be >500ms to capture frequencies below 2Hz.To capture frequencies to 0.2Hz requires a...
-
Ddcibel replied to the thread Steps needed / cal file for a UMIK-1 dip switch setting of 0dB sensitivity.You can edit the first line of the calibration file in any plain text editor you like.
-
Ddcibel reacted to John Mulcahy's post in the thread FSAF (Fast subband adaptive filtering) measurement with Like.
I should have checked my code before replying, the first two seconds of the mic wav file is the silence capture. The exc, res and lti...
-
Ddcibel replied to the thread FSAF (Fast subband adaptive filtering) measurement.Well, you could include the content in all 3 - stimulus, capture, and residual. It's not a big deal, more so that if someone provides a...
-
Ddcibel replied to the thread FSAF (Fast subband adaptive filtering) measurement.@John Mulcahy , a feature request for FSAF would be to include a couple seconds of silence before playing back the audio track file, so...
