Frequency Response

well in the recording studios they use big full range monitors for every channel...which has got evena 12 inch driver so It all depends upon you...which system you use and all the crossover frequenecies...

Prithvi when he visited linn he auditioned a system with subwoofer for center channel and he said there is a difference in the vocals.. even though the vocal freqs reinforces at 300Hz and up ...but the bass in the male voice etc..will come out efficiently only in the big drivers with low fs..

cheers,
Sandeep

In General the human bass singers voice regularly touches 90 hz....the lowest unofficially I think was 80hz.....

So if your centre speaker has a +-3db frequency response around 80HZ, you can easily cover all male voices.

No need for subs unless the digital material has other music programmed on it and that is why a lot of centre speakers have a low around 40hz. Bass voices from a 6 incher and a 10-12 inch sub will sound obviously sound different as drivers do sound different.....one does not need extremely low FS for male voices.


Manek.

yeah manek...but if a DSP will crossaway the signals then we cant hear that 80Hz freqs from the center channel naa...

cheers,
Sandeep

thats what I wrote....stricly speaking male voices dont go below 80hz so any other stuff on the DSP, data for centre shoud be accounted for....some centres today go down to 40hz.....

manek.

how about the female voices? whats the frequency response??

80Hz for male voices is only for male Basso in Western Classical.That too unofficial and maybe 2 individuals in the whole world.As for the centre channel in movies,the Dolby Digital and DTS mastering itself crosses over at 80Hz for the
.1 channel for cinema.As for home use in small rooms 120Hz cutoff is also acceptable as long as the room is 200 sqft, and you are sitting within 10 ft of the front channels and the sub.These are standards set by a group of engineers when deciding upon LF crossovers.This is not my idea.
Deaf.

Dear Sonic Master, studios used for film tracking use cinema speakers for their work in a cinema enviroment,using large diameter drivers.However the same film in the home audio DVD authoring use completely different mastering monitors, usually 5 nearfield (6") monitors with a subwoofer.Even the EQ in both the versions are different.Mind you the LF xover in both versions is 80Hz though.Hindi films however stick to the film mastering even for the home version with very little change.
Regards Deaf.

yes deaf, you are right...as I mentioned earlier for male basso voices 80HZ is unofficial and very rare. A real low bass classical voice measures upto 90hz. BTW the top end on a male tenor voice would be around 500 hz.

juggy,
For a female voice, a contralto, the range could be between 130hz to 700hz. A soprano would be from 250hz to 1.3 khz. These figures ofcourse will differ from singer to singer.

Manek.

Most of the Subs as well as front speakers have the lower range of frequency response of 35-45Hz.
So what happens (or what do we 'hear' or 'not hear') when these really low frequency sounds (20Hz-35Hz) come in??
Do we tend to notice the difference?

Most often we hear nothing below 45 hz, but we can "feel" the note. This range is usually for sub harmonics of Bass instruments. I doubt whether any of the fundamentals can go below 40 hz.

Behram.

Behram schrieb:

Most often we hear nothing below 45 hz, but we can "feel" the note. This range is usually for sub harmonics of Bass instruments. I doubt whether any of the fundamentals can go below 40 hz. Behram.

A Bosendorfer Imperial Grand.27Hz.Some large pipe organs down to 16Hz.
Deaf.

Thanks Deaf, are these fundamental frequencies ?

Behram.

An example is the big organ at cologne cathedral....those massive pipes for the lower frequencies seem to suggest that it did go down towards 20hz. Man....what an awsome experience to hear Bach's Tocatta and fugue.....Another example is the hull city cathedral organ.

But were they fundamental frequecies ? Dont know, I'm not sure I can hear 20hz but I sure could feel the sound pressure....woah !

Manek.

Behram schrieb:

Thanks Deaf, are these fundamental frequencies ? Behram.

Yup
Deaf.

yup these are fundamentals. if you can , try listening to Jean Guillou's organ rendition of the Pictures at an exhibition (It is a reference Recording HDCD Album).. you might deel the whole room rumbling ! the last piece ..

i think called the Great Gate at Kiev (?) can be a woofer burner.. i use it to test my sub ! and it goes down to 16 Hz and lots of material in the 30 Hz range.

But if you do not like Organ music you will not like it as the entire album was "re composed" for the Organ by Monsieur Guillou.

How does these "below 30Hz" frequencies sound in Subs which are marked 35Hz-20kHz?
(Most of the affordable subs are marked at this frequency range!!)

Arj, which Sub do you use?
Could you recommend some subs which can capture the maximum frequency range and still sound musical...

lots of good subs around.. in the UK REL S series and MJ Acoustics are good. MJ Ref 100/Ref 50 can be very decen with a lidpriced bookshelf and goes down to around 20 Hz in a small/Medium size room with a decent Bookshelf going down to around 50 hz region.

I actually got my sub from the OEM who manufactures for MJ/rel and provides the Amp modules for most of UK manuifactureres like Ruark etc.

In the US Titan, Hsu, Velodyne and SVS all make good decently priced subs which go well with most midpriced bookshelves.


but getting a sub to integerate with the speaker and room is not at all easy and you need to be on all fours quite often and do lots of measurements/ positioning and crossover/Phase settings to get the sound right