In my business data is king. On the other hand no data is better than bad data.
We have finite memory / storage in a race car so one must be selective and record whats important.
Rules to live by when setting up,
1 What am I trying to measure?
2 Why am I trying to measure it?
3 Is it relevant?
Rules to live by when interpreting data,
1 Is it believable?
2 Is it repeatable?
There are folks out there trying to make jack hammers out of pogo sticks and dissect insects with chain saws because they don't have the right tools and or the knowledge to do it right.
If one searches this site for measurement subject matter there is little if anything that shows up with direct query.
There are certainly some knowledgeable folks here with experience and equipment.
What I propose is we start a thread dedicated to each of the major types of measurements one would need to pursue this hooby we share, using the test type name as the thread title for direct routing when searching for that specific information.
The vitues why's and how's of say,
RTA Real Time Analysis
ETC Energy Time Curve
MLS Maximum Time Sequence
TDS Time Delay Spectrometry
IMP Impulse Time testing
I believe I can help a little, I have the current version of TEF. I have a fair amount of space to test in and can test outdoors with the weather as the only limitation.
With TDS, bacground noise is of little concern. I love the fact that I can run ETC sweeps working out crossover and gain stuff while listening to music on the very speakers I am testing.
I also have the Polar ETC equipment that will map an acoustical space in true 3D locating sound sources and reflections with the same detail as measuring a speaker directly.
I have LEAP 5 Crossover Shop and Enclosure Shop as well as LMS. I have used this mostly for modeling as I am working on ensuring I am capable of collecting good data for proccessing. Also the LINEARX VI box for large signal electrical measurments.
I have a laser position sensor (came with our Spintron) that I think I have signal conditioned to be read by the TEF for cone position VS signal. This is yet to be calibrated.
This is a pretty serious hobby for me, and there is still much I have to learn. And much I can learn from you all.
So if I want to know about the virtues of MLS, how do I find find out here?
Will the folks with knowledge and equipment help me build a knowledge base on this site for the education of us all? With LEAP, CLIO, SMAART, TEF, and all the other stuff we collectively own we could do a lot.
Help me figure out the best way to approach this.
There is a large DIY population here that could use the help.
Thanks,
Barry.