rexliong Posted February 24, 2006 Posted February 24, 2006 can anyone here tell me why is there some cracking sound from my centre speaker whenever there is a explosion from my movie when i'm listening in high volume. pls offer me an explaination and a solution. will apreciate this alot
desray Posted February 24, 2006 Posted February 24, 2006 sounds like clipping to me...it only shows that your Centre Speaker cannot take the load when play at high volume. Reduce the volume.
rexliong Posted February 25, 2006 Author Posted February 25, 2006 is there any way that i can solve this clipping problem? will greatly appreciate this if someone show me how
Phil1624705739 Posted February 26, 2006 Posted February 26, 2006 is there any way that i can solve this clipping problem? will greatly appreciate this if someone show me how As Des suggested, lower your receiver's volume. Alternatively, you can tone down the gain of the center speaker but you lost dialogue clarity. Best is to upgrade to a better speaker with higher power rating. Phil
dbchoong Posted February 26, 2006 Posted February 26, 2006 Rex, Have you checked to see if the foam/rubber surrounds of the speakers are not broken? :)
SiriuslyCold Posted February 26, 2006 Posted February 26, 2006 also, isn't clipping a fault of the amp (not powerful enough to handle the peaks, at the volume you're playing)?
Norman_Chan Posted February 26, 2006 Posted February 26, 2006 But usually centre speaker should not be that easy to blow ....there was a time when I blowed my BMB speaker ...the edge of the speaker cone was teared by the strong bass ... reason was that during the initial time I do not have any sub to support movies playback ....after that bad experiences , I tried to shop for speaker that the cone and liner are not make from paper .... Yes , you better open the cloth grill cover to check the speaker cone edge to see whether any crack line or broken cone at the joining edge.
karlie Posted February 27, 2006 Posted February 27, 2006 Crackling sound can be due to wrong bass-redirection. I had the problem with the 1812 Overture: the sound of the canons can not go through bookshelf speakers without crackling.
synthesis1624705793 Posted February 27, 2006 Posted February 27, 2006 Anything loose, like port or internal cable?
karlie Posted February 28, 2006 Posted February 28, 2006 Make sure your centre speaker is set to "small".
rexliong Posted February 28, 2006 Author Posted February 28, 2006 i have already set to small for my centre speaker. all the connection have double check that it is all tighen. have check the speaker cone and it is all in good condition.Can anyone here tell me what is the reason? i have check the power handling for my centre speaker. it is better than my front speaker and my front speaker can take it well without cracking
dbchoong Posted February 28, 2006 Posted February 28, 2006 Rex, exchange the connections between the left and centre speaker. This is to check if it's the speakers or the amp. :)
DIRTRUN Posted March 3, 2006 Posted March 3, 2006 OTT here a bit even though it has some similarities and also a little CNY story... The other night was watching The mask of zorro( the one with Anthony Hopkins) at the end scene where Catherine Zeta Jones was watching Don Diego(Antonio Banderas) playing with his newborn son, my center speaker went crackling at one of the dialogues and I went, what the hell, it wasn't that loud, don't tell me its busted, anyway, I backtracked and hell there it was again, sheesh, Money signs started rolling in my mind and I offed the HT and went to bed. The next morning I tried the same scene 2 to 3 more times and guess what no more crackling...Reason was the night before my neighbours kids were playing with fireworks (CNY season mah), and there was this buzzing, fizzing, wheezing, popping, crackling sounds coming from a few doors away and in spite of the closed windows and A/C, the crackling still came thru while I was watching the movie and it felt exactly like my ctr going haywire. Moral of story here is to check again and again, and that ambient sounds can sometimes mix with our soundtracks . So does that mean the my Ht is so good that I can't tell what comes from the speakers or outside noise....Nah, it just means my hearing needs checking, hehehe Cheers Dirtrun
desray Posted March 3, 2006 Posted March 3, 2006 My suggestion for ya will be as follows; 1) To check whether your Center speaker "kaput" or not...just switch the speaker to use it with either the Left or Right Channel...if no more crackling noise from either of the Left/Right Channel using the "SAME" Center speaker - then your Center speaker is not the one you have to concern about...check the wirings as in cable connections and the Amp for the Center Channel... 2) If after switching to either of the Left-Right Channel, the "SAME" Center speaker still have "crackling noise" emitting...then chances are there's nothing wrong with the connections/cables etc or your Amp - better get a new Center speaker... Pre-requisites prior to testing: Make sure that there's indeed no crackling noise emiiting from the Left/Right Channel when performing the testing... The above does not assist you in eradicating the "problem" at hand...but at least will let you have a grasp of the situation better to the whole problem arising from either the connection? Cables? Speaker itself or perhaps any other unforseen abnormalies attributing to it. Rather than hard-guessing...beating around the bush. Oops...never see that dbchoong also suggested to you the same approach. Me and dbchoong strongly believes that THIS IS THE BEST WAY TO TEST what could be the problem :) :)
karlie Posted March 4, 2006 Posted March 4, 2006 Only if you play exactly the same sound through the centre anf through fronts
rexliong Posted March 7, 2006 Author Posted March 7, 2006 dear all. after going thru some research and consultation, i have finally found the source if the problem and have eliminate this cracking sound for good. now i can on the volume at full blast for war movie and the sound will be good without the irritation of the cracking noise. thank u all for your kind contribution.
DIRTRUN Posted March 7, 2006 Posted March 7, 2006 dear all. after going thru some research and consultation, i have finally found the source if the problem and have eliminate this cracking sound for good. now i can on the volume at full blast for war movie and the sound will be good without the irritation of the cracking noise. thank u all for your kind contribution. Please share what is the source of the irritant...what you did to eliminate the crackling sound? Thank you. Regards. Dirtrun
rexliong Posted March 7, 2006 Author Posted March 7, 2006 the solution is very simple after i know the source. the main problem of most centre speaker is that the bass range is quite limited. which means if the bass is lower than the range that it is designed to play, it will crack in high volume. so the only way to eliminate this problem is to set the crossover frequency to a higher cut off setting. this will send those low frequency signal that is below that setting to the subwoofer. thus eliminating this cracking sound and enjoying the movie with high volume.
DIRTRUN Posted March 8, 2006 Posted March 8, 2006 In other words you reconfigured your AVR for center as small, rite. Thank you. Dirtrun
dbchoong Posted March 8, 2006 Posted March 8, 2006 Think it's setting to small and also increasing the crossover point to a very high number - above 100Hz (or the bottom limit of the centre). :)
rexliong Posted March 8, 2006 Author Posted March 8, 2006 the setting is already small when the clipping started. bottom line is the crossover. because the crossover determines the cut off setting for which the small setting speaker send the LFE to the sub
DIRTRUN Posted March 8, 2006 Posted March 8, 2006 the setting is already small when the clipping started. bottom line is the crossover. because the crossover determines the cut off setting for which the small setting speaker send the LFE to the sub Okay. alright, I get it now, you went with higher crossover of what 100 or 120hz instead of 80 hz as prescibed by every guru... Regards. Dirtrun
dbchoong Posted March 8, 2006 Posted March 8, 2006 Or even 200Hz if you're using tiny satellite type speakers... Having a very high crossover might result in easily locatable bass.
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