Recent content by user44455555

I do also RTA. see 2.screenshot in the 1 post. it did show fewer. for the rta is used 84 db at 1 meter and at microphone level was 102 db at 58 hz 4 cm. THD N was 0.47% and the harmonics was lower as 0.22%. maybe i need better settings. which ?

Hi In this thread https://www.audiosciencereview.com/forum/index.php?threads/why-spinorama-needs-an-extension-to-halt-the-race-for-cheap-low-quality-bass-with-strong-resonances-and-which-extension-is-best.72895/#post-2663074 girtab bring suggestion to measure port noise I try it and when use...

another screenshot that Klippel sound field Separation did not work correct at low frequency Level at time Cursor display show that after 9.89 ms at 300 hz the level is ~-42 db. group delay show at 300 hz only diffrence of 2 ms to 500 hz upto 20 khz. the group delay of 23 ms is realy long...

here is the test. rew generator is a easy way to test, you can also use audacity create 2 tracks. 1 track with sine 60 hz and delay this track by 4 ms and another track with a sine 120 hz. this is what happen when hear a bass sound.I notice in scope REW output sine waves which can shift in...

Hi all and @Erin I compared the raw Free-Field Measurement with Klippel's calculated Direct Sound Only model using the Sound Field Separation algorithm. It becomes obvious that the Room Reflection Compensation aggressively cuts the time window in the low end, completely erasing the speaker's...

I try to use burst decay. much settings for it i see not and so i notice it seem show wrong values. correct is for 96 hz 4-6 cycles. see scope results of a burst and arta burst sonogram. this seem more near reality. I think for such a burst decay also usefull is when have a line that show the...

To verify yourself you can install klippel software for free and play the demo files. I use honeycomb speaker. when wavelength is larger as enclousre length, then no partial movement happen. so no cancelations happen in bass. the animation videos are create from the klippel software. it is avi...

i notice when use othe color sheme. only the dottet line is steped. On other settings wavelet th dottet line is not stepped, but i think it is not correct what can see

did you hear no diffrence in the 4 ms test i upload ?. this huge phase problems bigger speakers have, shift the harmonics and so the waveform inside a bass instrument. bass sound driffent and lush when phase between harmonics differ resonances is a big problem when speaker get larger...

maybe the steps are create from FFT size or window size 16384 say the AI because this fit to 15 ms steps. here a zoom . energy peak time is much more stable as group delay. i only ask if it can maybe easy reduce with diffrent window size or reduce fft size ? this are 2 mm measures, and on both...

The peak energy time work mostly in steps of 0, 15 ms , 31 ms, 46 ms. is it possible that this steps can reduce easy to 4 or 8 ms ? EDIT: The group delay have better precision but this is on hearing place so much fluctuating. so energy peak time look more realistic here is a audio test that can...

I try the decay graph with newest beta, only when i reduce rise time to 10 ms it show usefull decay. . here can download the headphone measures. https://www.audiosciencereview.com/forum/index.php?threads/floyd-tooles-toronto-aes-presentation-from-october-28-2025.67011/page-2#post-2650886 I use...

which is the setting for highest resolution in spectrogram slices. ? https://www.audiosciencereview.com/forum/index.php?threads/floyd-tooles-toronto-aes-presentation-from-october-28-2025.67011/#post-2647340 Here tell Dr. Toole that there need measure with laser vibrometer at same time at...

Of course, the waveform changes. An ideal speaker adds no phase shift between the fundamental and the harmonic (0° phase). A poor-quality speaker, on the other hand, has uneven group delay: it emits the fundamental tone with a delay, while the harmonic is already present. My test is designed to...

there can create such test tones without phase shift and put it thru a allpass filter later. but when i create such tones with phase shift direct in generator give more control over the phase shift. with a allpass filter it is hard to get a value. that is small. or what allpass filter i need, to...