I love the music - is this Johnny Hodges at the Sportspalast in Berlin, on Pablo live?
thx
Andy
SETs and Horns
- Thread starter Al M.
- Start date
thx
Andy
Which Iphone do you have? I have an older Iphone 7 that has a video mode called HD-60. I found this makes significantly better quality (both picture and sound) videos with the Iphone. I don't know if later versions of Iphone have this setting or not. Also make sure your hands/fingers are not in anyway in front of or blocking the microphone...I am not sure many people think about this when making a video with a phone.
Yes, it is. I also like "Autumn Leaves" and "Take the A Train" when played through these Altec A7s
Ok, here goes:
for Orchestra (probably not the best choice, just grabbed it from a sounds pretty good pile) I've got:
for male voice:
I turned the volume down a bit from my first recording to these (in consideration of my wife napping in another room). I hope you can still evaluate the sound/system and make suggestions despite it not being at normal (live) sound levels (albeit other factors too, like from an older iPhone, my finger occasionally blocking microphone, and getting into the picture, and playback through your digital computer electronics and speakers).
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I am balancing the camera on a stack of books on a file cabinet just behind where my head is usually at when listening. I am having trouble downloading my last video from YouTube for some reason.
Rensselaer, I was going to ask you about the rest of the room, and then you posted this video saving me the trouble. Thank you. Is there a reason that the two speakers seem centered on the rack and window and do not appear to be the same distance from each corner? I wonder if each speaker being different distances from the corners affects the sound.
I think the system sounds very nice based on these videos. Congratulations on the A7s. I think the recording volume sounds about right and I prefer the iphone held in place from the listening seat.
Before the A7's I had the sofa on that left wall, under the photos. The window is further from that wall than the other so I centred my system under the window and speakers equally spaced either side. The sofa used to work as a sound absorber on the left, my record shelves on the right. The ceiling inclines from above the window to over my head in listening position, then starts back down behind me so reflections hit the floor behind me and do not interfere. I couldn't fit the sofa back on that left wall once the Altec's were in so put it in the listening position and left the wall clear. I am not noticing distortions or reflection interference but I am sure it is there. Perhaps a chair should be strategically placed?
A sudden thought occurs Peter. Did you ask me about speaker placement and uncovered wall on left after you watched the video, or after you heard the video?
Here is the start of a Classic Records re-cut of a well-known recording (Scheherazade) which I know you will be familiar enough with to assess the speakers somewhat (bearing in mind recorded on iPhone 8, then wi-fi to other computer for downloading in digital to YouTube, then there to your computer). I would like your opinion as to what you would do to speakers, room, crossover, bug-screen in treble horn throat, etc., if you didn't want to add tweeters or sub-woofers but just maximise quality of what is there.
If it helps, and I can do it here, another 3 songs recorded off the k.d. lang, Shadowland LP (not considered audiophile):
What you hear suggests I need dampening around the outsides of the treble horns? I can’t tell if bass horns too well damped, treble horns not attenuated enough or room reflections in need of dampening. What would you suggest for such?
Well, the first thing would be to figure out how to measure the frequency response if you don't trust your ears with the high/low balance. Once you have it measured you will see if that is an issue or not. Until then it is hard to say exactly.
There are rebuilt (with new parts) stock crossovers on the A7's, the variable resistors on the back of each speaker (used to balance treble with bass I assume) have different knobs on them so I assume one at least is not original (hopefully the variable resistor inside is original, or at least matched). Rather than switch to a Klipsch crossover, I think I would like to do what I can with the stock devices and then decide if I need different.
So how, and with what device, do I adjust frequency response so that various frequencies (those below 500 Hz and above 500 Hz) are being produced at the exact same db output? Is there a test record and sound meter device that does this well without spending a fortune?
try one of the many apps for your smartphone, play a tone sweep through YT.
These apps give a decent indication when you ignore the limits of the frequency curve and room problems (below let's say 40Hz and above let's say 15K)
If the low end of the speaker takes care of 500Hz and the horn does everything above adjustment of SPL should be the easy part, tuning phase alignment, speaker positioning and then things like damping is the labor intense part.
These apps give a decent indication when you ignore the limits of the frequency curve and room problems (below let's say 40Hz and above let's say 15K)
If the low end of the speaker takes care of 500Hz and the horn does everything above adjustment of SPL should be the easy part, tuning phase alignment, speaker positioning and then things like damping is the labor intense part.
Try to find a Behringer DEQ 24/96 with calibrated Behringer microphone. i have a computer measurement system but for ease of use and it is still relatively accurate, I use the Behringer setup. It has a built-in pink noise generator and a 61 band real time analyzer (RTA) where you can have averaging so that you get a steady state response. Whole setup is around 300-400 bucks. You feed the digital out of the behringer into your DAC to get the pink noise through your system. Works great and is much easier to use than a computer measurement system because you can adjust in real-time.
Eh, no DAC. I only have/play acoustically recorded vinyl records. Any test tones would need to come from a vinyl record.
I have a friend who is an Industrial Hygienist who specialises in noise/sound control and have asked him if he might be willing to bring over some of his gismo's and help me.
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