Recent content by FSAF

Home Depot Comfort Board and Ali Express felt panels on the top will assure you >200 Hz comfort. You have to take care of the ceilings or use line array speakers.

I prefer a (rotating) superdirective microphone array to tune SIMO speakers to minimize wall reflections to get purer stereo. I mean, after using multiple line arrays for speakers and extensive room treatment. Then I do hear quite a difference. With an omni mic, I was not able to get a...

I am lost. What does EQ-ing with omnidirectional mics mean if our ears are not omni?

Preferably, a setup shall be able to loop at every point, i.e.: - at application s/w - at the drivers - at the audio interface on the digital level - at the audio interface on the analog level - at amplifier output - at loudspeaker acoustic output -> mic ...and the gain plan shall be set so...

That's better. I'd advise to increase the digital signal level to see where it breaks. On my 2i2, it starts to break when the amplitudes hit above -4dBFS, regardless of the hardware analog attenuator: This is the noise floor for max=-7dBFS: and this is for max of -2dBFS: with everything else...

On my 2i2 Gen 3, white noise at -25dBFS RMS, balanced out -> balanced in : FSAF shall suppress the residual (aka THD+N) all the way down to the noise level (except for very low frequencies, where the IR tail exceeds the allowed limit, and close to Fs/2 where lots of aliasing occurs): REW...

The previous version of it, PS130F, without Evo. This is how it behaves (H3 on 80 dBSPL@1m) with 0 | 6 | 12 | 24 Ohm series resistor. Nice but very expensive.

Confused = can't make much sense = can't explain. If I could explain, I would not be confused:-) Yes, including Focal PS130

I did not know that about MOTU, thank you for sharing this very valuable insight! I also saw the correlations... but after I measured a few dozens of loudspeakers, I got completely confused. I am not saying that nobody can extract valuable data from it - only that I was unsuccessful. I agree...

I have been playing with current measurements for quite a while but have not found a way to make much sense of them. First, you need a soundcard that can turn +48v on and off on separate inputs. I used Focusrite 18i20 Gen 1. Then I recorded 4 channels: 1. ruler-flat measurement mic (electret)...

I would second on EQ. That helps to compare different drivers "apples to apples"

I was also puzzled in the beginning and went looking for a bug in the code. I found that -3dB/oct is due to exponential sweep, and that is how it is, the nature of things. After a while, I stopped seeing it as abnormal. Yes, it takes time to get used to. A linear sweep is flat, it spends the...

That heavily depends on the music, performance, and recording practices. "Wall of Sound" was invented to mask the distortions of the music even on the budget acoustic of the 1970s. Such music is playable on low bit rates well. Go to jazz piano trios, Coltrane/Hartman, best classical / chamber...

The best test tracks "objectively" are the same as the hardest to compress - live unedited chamber acoustic with voice, like a jazz piano trio accompanying a singer. Too many instruments - easier. Too much editing - easier. Without voice - easier. Without piano - easier. Also, it must be a very...

"misuse and abuse" is exactly what I am looking for. Any new technology is flaky, shaky, and full of bugs which I have not noticed because I am using FSAF too "right". It's a long way to the rock-solid perfection of a good ice-axe. "misinterpreted and misunderstood" is out of my control, thus I...