tag:blogger.com,1999:blog-6925622045053615520.post119317637146572543..comments2023-04-13T04:03:14.540-07:00Comments on audio blog: Audiophile Buzzwords, a dicey subjectUnknownnoreply@blogger.comBlogger7125tag:blogger.com,1999:blog-6925622045053615520.post-53983079498999090352011-02-17T11:54:44.434-08:002011-02-17T11:54:44.434-08:00OK, I've thought about this a bit. The proble...OK, I've thought about this a bit. The problem is that there is not set definition for the subjective terms and often they are used interchangeably. That said, I think what you are asking is typically true, but if narrow directivity speakers are cross-fired they take on an amazingly spacious character. Narrow directivity will also have advantages in SBIR(though not necessarily where it is useful) and Initial Time Delay (something I haven't blogged about) problems so they should retain their imaging while cross-fired.DanTheManhttps://www.blogger.com/profile/06523842666934527611noreply@blogger.comtag:blogger.com,1999:blog-6925622045053615520.post-88120700885410054212011-02-16T20:49:13.577-08:002011-02-16T20:49:13.577-08:00This is another juicy topic that's tough to wr...This is another juicy topic that's tough to write on. Maybe I should make this my next post as it is a bit too intense to write on in this short of a space.......... Let me ponder this a minute.DanTheManhttps://www.blogger.com/profile/06523842666934527611noreply@blogger.comtag:blogger.com,1999:blog-6925622045053615520.post-26969291212495282042011-02-16T11:43:51.595-08:002011-02-16T11:43:51.595-08:00got it, thanks.
You write, "A narrow direc...got it, thanks. <br /><br />You write, "A narrow directivity should give you a better image where a wider, a better sense of space."<br /><br />Ah! So if a speaker has a "big soundstage", that means it is a less directional speaker, right? In which case it seems like "imaging" and "soundstage" work against each other, since to get more of one you would have to give up some of the other(?).Filiusnoreply@blogger.comtag:blogger.com,1999:blog-6925622045053615520.post-31607728301625631232011-02-15T20:07:19.343-08:002011-02-15T20:07:19.343-08:00It's just a frequency response graph taken at ...It's just a frequency response graph taken at several angles and overlaid so that a more relevant view of the sound being put into your listening space can be seen. You essentially want a smooth set of off axis graphs b/c you will hear their reflections and eventual decay when you listen to your loudspeakers. I take mine in 11.25 degree increments from 0-90 degrees.DanTheManhttps://www.blogger.com/profile/06523842666934527611noreply@blogger.comtag:blogger.com,1999:blog-6925622045053615520.post-68567600079528921992011-02-15T15:07:27.429-08:002011-02-15T15:07:27.429-08:00This is interesting. Can you explain what polar r...This is interesting. Can you explain what polar response is?Filiusnoreply@blogger.comtag:blogger.com,1999:blog-6925622045053615520.post-82782417826014307742010-12-30T10:10:58.504-08:002010-12-30T10:10:58.504-08:00Thanks Paul! I absolutely respect and appreciate y...Thanks Paul! I absolutely respect and appreciate your commentary. I've been reading you site and posts for a long time.<br /><br />My point about the impulse graph is that all the CSD and wavelet type things are just another way of looking at the impulse. Check out the rest of this blog and you'll see that I use other views of the impulse often, but the more experience I've gained, the more I realize that all you need with regard to the loudspeaker can be seen in the frequency response(anechoic, but gated will do) and the impulse. W/o the impulse, CSD, Spectrogram, etc... can be misleading. That was sort of my point b/c the beam width of a transducer can get reflections into those(if not anechoic) other graphs and cause interpretation errors when if you don't have the impulse. In addition to the impulse they(CSD, Wavelet, etc...) can certainly clarify though I'm not much of a fan of CSD in general. From a psychoacoustics standpoint, a wavelet is more useful. I believe I go into this in my 'gating loudspeaker graphs' entry. <br /><br />I wasn't really trying to go into "in room" issues as things change there. This was intended to be more of a 'how to' buy a good sounding loudspeaker based on measurements--preferably anechoic. Buying speakers is tough if you are any sort of perfectionist. If you are reading this, you are some sort of perfectionist. ;) We've all read Dr. Olive's "Dishonesty of Sighted Listening" so measurements are the only honest way to go about it. If we went into the psychology of his blog entry, we'd really undestand that he is exactly correct. We are not above sight bias. Look at the McGurk Effect. <br /><br />Bass has to be measured in room and in the listening position or preferably listening area. So basically we totally agree just I was trying to avoid getting into the room. I do some of that in more recent posts. <br /><br />Again, thanks for thoughtful commentary. I've deleting many vicious posts from some passionate audiophiles regarding this entry. I deleted my first post of this to clarify a bit.DanTheManhttps://www.blogger.com/profile/06523842666934527611noreply@blogger.comtag:blogger.com,1999:blog-6925622045053615520.post-51726379038776990642010-12-30T00:10:48.879-08:002010-12-30T00:10:48.879-08:00Hi Dan,
You've got some great topics in here...Hi Dan, <br /><br />You've got some great topics in here!<br /><br />I cringe when I see mention of rhythm, pace and timing. I wish people would keep those kinds of terms for music. Still, I think we also need some subjective terms if we are going to talk about the things we hear. Terms like spaciousness, sound stage and imaging I can live with. I'm not fussed what subjective words people use, as long as I know what they mean. When people start talking about rhythm, I wonder what a CD player could possibly to to alter that without being seriously faulty!<br /><br />Polar and impulse response tells all? If that's true then you are very easy to please! That might be simplifying things a little too far. I think you will find there are many measurements that will show audible issues, not simply those two. Waterfall plots can be quite revealing regarding in-room bass. Add bass traps and you will see that the faster decay is very audibly different, even where the response is pretty close. <br /><br />Don't get me wrong - I agree polar plots are one of the first things you want to see, but I'm interested in a great deal more than that.Paul Spencerhttps://www.blogger.com/profile/07514836858344391753noreply@blogger.com