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Search: Posts Made By: J_Palmer_Cass
Forum: Subwoofers, Bass, and Transducers   07-23-2015, 10:14 AM
Replies: 22,153
Views: 1,380,607
Posted By J_Palmer_Cass
The "objective" bass data group started their own...

The "objective" bass data group started their own thread over at Gilligan's Island. Maybe you should join the "objective group" so you can post elsewhere?


I don't see many SL waterfalls being...
Forum: Subwoofers, Bass, and Transducers   06-26-2015, 09:06 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
Gilligan's Island seems to prefer Bosso's...

Gilligan's Island seems to prefer Bosso's SpectrumLab settings. I can't under stand why.

Look at the tabs on the left side of chart. The fourth tab down clearly states "Bad Frequency Range" for...
Forum: DVD Recorders (Standard Def)   06-22-2015, 06:43 AM
Replies: 37
Views: 678
Posted By J_Palmer_Cass
Regarding playing recordable media in an older...

Regarding playing recordable media in an older DVD player, I have Windows PC based systems. In my older Windows XP system, when I make a copy I can change the book type on recordable media so an...
Forum: Subwoofers, Bass, and Transducers   06-20-2015, 06:59 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
Seems that no one over at Gilligan's Island has...

Seems that no one over at Gilligan's Island has moved the discussion from SpectrumLab measurement settings / issues / analysis to the Bosso makes the best subwoofers in the world act.

Hardly...
Forum: Subwoofers, Bass, and Transducers   06-19-2015, 09:51 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
There has been a response to this posting over at...

There has been a response to this posting over at Gilligan's Island.


This is what Bosso claims is what I prefer to use for my settings when looking at bass frequencies. Perhaps it varies a...
Forum: Subwoofers, Bass, and Transducers   06-18-2015, 07:07 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
I am not sure what is bugging the crew over at...

I am not sure what is bugging the crew over at Gilligan's Island. There is an obvious 3 dB per octave / 10 dB per decade slope of typical movie content when shown on an FFT program. No one is...
Forum: Subwoofers, Bass, and Transducers   06-17-2015, 05:10 PM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
Yup, that is the problem that I had. In...

Yup, that is the problem that I had. In addition, single frequency sine waves are no longer in calibration. They will vary by 10 dB per decade when you use the reference curve subtraction method on...
Forum: Subwoofers, Bass, and Transducers   06-16-2015, 04:10 PM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
Bosso is showing some movement in his position,...

Bosso is showing some movement in his position, but not by much. Note that he mentions scroll speeds in the first paragraph. I would post a few of Bosso's samples, but then Bosso will complain to...
Forum: Subwoofers, Bass, and Transducers   06-16-2015, 03:44 PM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
Here are a couple of quick captures from a 1953...

Here are a couple of quick captures from a 1953 movie. Not a bombastic movie by any extent. One of them uses the Bosso method with a +6 dB boost in the signal offset. One of them uses the JPC...
Forum: Subwoofers, Bass, and Transducers   06-16-2015, 09:44 AM
Replies: 208
Views: 11,042
Posted By J_Palmer_Cass
You mean they will not work just as well in an...

You mean they will not work just as well in an ugly DIY box?
Forum: Subwoofers, Bass, and Transducers   06-16-2015, 08:43 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
As a comparison, show the detail for the other...

As a comparison, show the detail for the other three FFT lengths. Among other things, FFT window time changes as FFT length changes.
Forum: Subwoofers, Bass, and Transducers   06-16-2015, 07:17 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
LTD, you should add in some detail from the FFT...

LTD, you should add in some detail from the FFT tab. Bin bandwidth, overlap % and FFT calculation time for each FFT length that you used.


In the audio tab, Bosso stated that he divides the...
Forum: Subwoofers, Bass, and Transducers   06-16-2015, 02:01 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
Simple continuous sine waves do not reflect FFT...

Simple continuous sine waves do not reflect FFT calculation time. You do not notice time smear with simple test tones.


The time smeared waterfalls just do not do the FFT calculations quick...
Forum: Subwoofers, Bass, and Transducers   06-15-2015, 05:57 PM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
You are a chip off the old block. Bin...

You are a chip off the old block.


Bin bandwidth of 0.7 to 1.4 Hz is adequate for the valid speed settings that are available in SpectrumLab. That would calculate to be from about 7 to 14 bins...
Forum: Subwoofers, Bass, and Transducers   06-15-2015, 10:18 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
If the SpectrumLab program debug files say that...

If the SpectrumLab program debug files say that you are making an error with your settings, then perhaps everyone should care. Maybe the person who wrote the SpectrumLab software should be more...
Forum: Subwoofers, Bass, and Transducers   06-15-2015, 09:10 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
I don't follow you around. No reason to do so. ...

I don't follow you around. No reason to do so.


For the first time I checked the threads that you have posted on. You seemed to have followed me here by the looks of things!

...
Forum: Subwoofers, Bass, and Transducers   06-15-2015, 07:49 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
Now that I know who "we" are (Bosso and SOB (son...

Now that I know who "we" are (Bosso and SOB (son of Bosso)), I will throw you the same bone I threw to Bosso years ago.


Look at the Debug files for SpectrumLab to see if any of your settings...
Forum: Subwoofers, Bass, and Transducers   06-15-2015, 07:34 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
I think that the basic problem is you need a...

I think that the basic problem is you need a certain amount of time for the FFT to calculate the full bin amplitude. If the signal time period is less than the FFT bin calculation time, then the...
Forum: Subwoofers, Bass, and Transducers   06-14-2015, 12:55 PM
Replies: 208
Views: 11,042
Posted By J_Palmer_Cass
If you knew what you were talking about, you...

If you knew what you were talking about, you would not limit yourself to half truths. Are you related to Bosso perhaps? Your samples are a time smeared mess.


Anyhow, look at the transient...
Forum: Subwoofers, Bass, and Transducers   06-14-2015, 09:57 AM
Replies: 208
Views: 11,042
Posted By J_Palmer_Cass
Those waterfalls are pretty inaccurate. Time...

Those waterfalls are pretty inaccurate. Time smear is intense, and transient detail is missing. Bosso recently proved those settings are pretty bad.
Forum: Subwoofers, Bass, and Transducers   06-14-2015, 07:31 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
The REW tone generator is generating a fixed...

The REW tone generator is generating a fixed cycle burst signal that is based on RMS levels and the use of a Hann window. It seems that what you are expecting to see (peak levels) is not what you...
Forum: Subwoofers, Bass, and Transducers   06-06-2015, 05:45 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
Bosso is at it again. His SpectrumLab...

Bosso is at it again.

His SpectrumLab setting produce a huge time smeared mess that is missing fine details. Yes, he get's real fine frequency bin resolution. His time resolution is the...
Forum: Subwoofers, Bass, and Transducers   06-05-2015, 11:59 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
I should know better by now. Always consider the...

I should know better by now. Always consider the source.




http://data-bass.ipbhost.com/index.php?/topic/12-the-low-frequency-content-thread-films-games-music-etc/?p=7459
Forum: Subwoofers, Bass, and Transducers   06-05-2015, 11:42 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
Run away with your tail between your legs if you...

Run away with your tail between your legs if you want to.


I want to see what you have done for a comparison on your own personal system. Talk is cheap. The work that "we have done" over at DB...
Forum: Subwoofers, Bass, and Transducers   06-05-2015, 10:16 AM
Replies: 154
Views: 5,044
Posted By J_Palmer_Cass
Note that Shreds is talking about SPL levels. It...

Note that Shreds is talking about SPL levels. It is improbable that anyone can calculate SPL levels by eye based solely on an FFT chart.
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