stay tuned i may do live video today . maybe in next hour or so .mama mia!
thanks but have you the dynamic values of this CD ?
I quickly removed the content above 20 Hz in one song, and I admit I can't hear anything over headphones or AVR with subs connected. Subs just don't turn onI could be very wrong, of course.
those low ends are in centre channel and LFE.1 not many know this fact . they assume it's all in the LFE.1 as most have their systems set with bass management .i run system full range as what cinemas run at .The very start of Edge of Tomorrow is a great piece of sound to test infrasonics. Organs also reach infrasonics (listening to Bach in some cathedrals shows it).
Man, how much fun it is to get your ribcage rattling.
Do THX specifications employ real full range (including infrasonics) on every speaker?those low ends are in centre channel and LFE.1 not many know this fact . they assume it's all in the LFE.1 as most have their systems set with bass management .i run system full range as what cinemas run at .
well have you ever seen same film more than twice at regular cinema and then seen it a THX cinema and if so name of movie , cinema and location .Do THX specifications employ real full range (including infrasonics) on every speaker?
Yes, that is what I said above, its called direct injection where you record the output of the guitar as well as the sound from the cabinet with a microphone. This is mainly done for bass guitars as their cabinets are big and not easy to accommodate in studios. However, this is not done on live recordings.True enough, but think I've read of some who had both going on for recording purposes particularly....
There is no need to use a steeper filter on the bass frequencies as it is with the digital sampling filter to limit distortion. You only care about audibility. Other than the 1st example which is odd as it even has DC output(!) the frequencies below 20Hz are cut at 1st (2nd sample) and 2nd order (2nd order) filters. On the 3rd sample for instance 10Hz is muted by 20dB (100x). That is inaudible.I didn't know that. It makes sense. But I don't think it is brickwalled. View attachment 234808View attachment 234809View attachment 234810
These are three different songs I chose randomly and analized their spectrum in Audacity.
And you can see that the content below 20 Hz is filtered and attenuated, but not gone completely. You can see it is even louder, in some parts of the song, then 800 Hz parts.
How audible that spectrum below 20 Hz is? It is very faint, but I believe it is audible with speakers that reach that low...
I could be very wrong, of course.
I live in nowhereland, so I cannot get picky with THX certifications.well have you ever seen same film more than twice at regular cinema and then seen it a THX cinema and if so name of movie , cinema and location .
About music,my nephew decided to try an electric bass guitar along with his classical studies.
Searching to built a two 15" cabinet all the pro bass speaker companies (like eminence for example) recommend an HPF at 30-35-40Hz and very steep in some occasions.
There is content down to 20Hz in music,but not as much as we think,it's really rare and I have posted some similar content myself in Bass thread.
Lifeforce is a good movie.lifeforce , laserdisc print release theatrical mix Dolby Stereo , THX sound system . nice lows on the JBL THX system . my cat , Bear didn't seem to mind the low end .
Regardless of the bass content any astounding record might have, you have been insisting in how tiny your room is.No offense Andysu, looking at your disc collection I feel I’m reading posts from last century. Lol. Those LDs and DTS discs were luxury items back in the days when I was student who could never afford them.
That’s why I’m reasonably choosing KH750 over KH810 or other ported subs. Link doesn’t work btw.Regardless of the bass content any astounding record might have, you have been insisting in how tiny your room is.
Listen to this interview, if you please, where a loudspeaker maker warns about spending any money on their flagship product if it is to be placed on a 3x3 meters room...
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