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Post by bluebucketradio on Nov 27, 2015 7:25:13 GMT
I wasn't really sure where to place this thread , so I placed it here. The following is an aircheck of Blue Bucket Radio 1520 AM after I spent 2 hours messing with Sound Solution processing software, song is Whiskey In The Jar by the Grateful Dead although I don't recall Jerry Garcia or the Grateful Dead recording this tune, but that's the way is was tagged. The settings are my own as the download did not include the usual presets, what do you think? Too bright? Just right? Link to the aircheck on my Google Drive.Barry of Blue Bucket Radio 1520 AM Edited: Transmitter is the SSTran AMT3000 , receiver was Grundig G3 Globe Traveller , Recorded via Audacity and Ubuntu 14.04
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Post by Deleted on Nov 27, 2015 15:07:01 GMT
HIGH END TOO HOT
Barry, the top end of the audio sounded a bit shrill, which of course on AM would cause a lot of splash and reduce the amount of midrange and lows that get through.
It was surprising that the extra highs didn't distort the signal... that AMT3000 has really good modulation!
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Post by Admin on Nov 27, 2015 15:57:55 GMT
I'm told I have severe high end hearing loss so I tend to boost the high end too much. Listening to the air check sounds great! But that tells me the high end is probably, as Carl said, a bit hot. That being the case I rely on visual metering when I setup my EQ. So, I ran your air check through an audio spectrum display and find the high end is out to around 15 kHz. Great for FM. If your adjacent channels are vacant you may be OK but then again most radios won't pass much more than 6 or 8 kHz. Otherwise, very clean sounding. What radio was this recorded from? Here's a link to a quick EQ edit. I rolled off the highs starting around 4 kHz: Sampler Wave Edit
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Post by station8 on Nov 27, 2015 20:01:03 GMT
Hi Guys: Here is my out take on the audio quality.
Blue Bucket Radio : All i got to say your audio quality is beautiful sounding ! ( For Highs & Lows )
You sound like an am commercial station here, country 1260 am WIYD and you could compare them to Fm station in audio quality.
Mram: Your audio to me was smoother on the low frequency side Like most am station would send out.
What you could do between both audio source from you guys is take mram and blue bucket setting and find the medium setting between the two and that should work.
As for the splashing of the highs frequency when i looked for it on my various radios it vary's from radio to radio.
Radio i own: Panasonic Dp 22 & DS 30, National Panasonic DR-49, Sony SRF-A100 Radio Shack 12-587, 12-586 grundig FR-200 Technics SA-103,104 GT-3 Directed Electronics DMHD 1000, Tecsun PL-880
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Post by The Legacy on Nov 27, 2015 23:42:10 GMT
Wow AM man that did sound GREAT for AM. I would have listened to a station that sounded like that. Its what an Album Rock station should sound like.
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Post by thelegacy on Nov 27, 2015 23:44:03 GMT
OK Just wanted to test to see if I am logged in right now. Yes it did sound great for a Album Rock station. If mone would sound like that I could get listeners.
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Post by bluebucketradio on Nov 28, 2015 0:19:29 GMT
Something isn't right here. And i think i know what it is, my pc did not separate sound from the the line input and the program audio going out over the air. Which means what you heard in that sample was raw audio from the pc to audacity. It was my thinking that the sound card would separate/isolate the two so i guess what you all heard was actually the sound from the processor before it went out to the airwaves. What I did was connect a Sony walkman to the line in on the same computer that handles the automation of BBR. DOH! No wonder it sounds like FM! I apologize for the mix up, but since I have run out of audio cables i did the next best thing. I took my wife's digital camera out to the Jeep and recorded live audio from the car stereo, this whole mixup on my part helps me understand what I am dealing with and where i can make some improvements. VIDEO HEREBy the way, our format has changed. I will be airing Bluegrass, Irish/Celtic Music and if all goes well, music from bands in Kentucky. So far the shout out for music submissions in my state over social media has not been great which is rather disappointing. Barry of Blue Bucket Radio 1520 AM EDIT: MRAM1500 I have tinnitus, i may have the same problem with high frequencies too. One too many hours spent at race tracks,live music venues and heavy metal cranked on the car stereo.
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Post by Deleted on Nov 28, 2015 14:15:18 GMT
Jump and Punch
I LOVE that song!
You have got that radio jumping out to the listener with a good punchy sound!
Here is a thought from an old time audio man...
Your on-air sound will seem different to you at different times... depending on how tired you are, how relaxed you are, day and night difference in your perception...
How does Stephanie like the sound? Does she have suggestions for making tweaks?
Play that song again.
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Post by bluebucketradio on Nov 28, 2015 20:49:29 GMT
Which song did you like Carl? Was it whiskey in the jar? I have heard so many rendition's of that song but i really enjoy the traditional version. Many bands like The Dubliners, Thin Lizzy and Metallica recorded this ballad and there were many different variations over the years. I think The Dubliners did it quite well , but one year at a friends house to hear it live and a bit drunk was a great experience. They used a mandolin and 2 acoustic guitars, it sounded great. As for the processing, another thing affecting how we perceive sound is of course the acoustics, in a car depending on the interior and quality of the speakers, their placement, same with rooms or open area's, like outdoors or auditoriums. When I recorded the video from the car, it was pretty late at night and i was not able to turn the radio up too loud without disturbing the neighbor closest to the carport. When I setup processing, i use a radio and headphones. Not those earbuds you cram into your ears, but over the ear headphones which usual have better frequency response than earbuds. Earbuds kill my ear canals, i can't use them and I don't like the way they sound. Thanks for feedback. Are my Irish roots showing?
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Post by Deleted on Nov 28, 2015 22:25:57 GMT
Ring Diddly I Yo
It was the song playing on the dashboard car interior video... the rythym was great and bagpipes came in.
And you are very right, the acoustics and different speaker/headphone combinations change everything... we've got to become familiar with the system and room where we do the set up.
Some days using the exact same equipment my recordings sound dull, and other days they sound just right. Am I changing, or does the equipment change?
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Post by bluebucketradio on Nov 28, 2015 23:45:09 GMT
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Post by Deleted on Nov 29, 2015 1:45:36 GMT
Done Loaded Down
THANK YOU Barry.
I will play it between programs tonight.
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Post by bluebucketradio on Nov 29, 2015 19:32:14 GMT
Glad I could help Carl. I was reading over this thread and thought it would be interesting to some you to explain the placement of speakers and interior of my 2000 Jeep Grand Cherokee. My wife and I love our Jeep. In this area we live in you really need 4WD and some amount of driving skills but that has nothing to do with audio does it? While the radio makes driving a bit more pleasant, the placement of speakers in a confined space makes all the difference in how we enjoy our listening experience. In the Jeep we have a six speaker system which is factory original, I have not added or replaced any speakers. Although we need to replace the front passengers side speaker or pull the door panel off and check for a bad connection. Sometimes it works, sometimes not and it has been that way since we bought the Jeep used. Speaker placement is as follows: Front dash just below the bottom of the windshield there is one tweeter on each side. On the front and back doors (4 door w/tailgate) there are 5 x7 speakers and in the rear cargo area next to the tailgate are two empty speaker ports. Jeep/Chrysler like so many other car and trucks brands allow customers to build there car/truck/suv with special options. This one was built standard meaning no one designed it from a website or a show room catalog, it had the option of two more speakers placed in the empty ports next to the tailgate. That would bring the total of speakers to 8 speakers, but in our case just 6 speakers. Now the Sony stereo I recently installed has the option for adding external amps and i guess if i wanted to i could add speakers to those empty ports and drive them with a separate amplifier. But who would those speakers benefit? I could add sub woofers and boost the bass but i really don't feel the need to subject my ears to more hearing damage. I suppose though, if we had a tailgate party those extra speakers would be handy. Now this system sounds pretty nice, even the factory stereo sounded great but we needed more options. Here is something that isn't really a bad thing but can affect how I listen to the radio or cd's, my left leg tends to block the speaker in the door on the drivers side door which means i just hear the bass frequencies and none of the high and mid ranges (remember those door speakers are full range speakers) the easy solution is to move my leg a bit and all is well. You can hear the high's from the tweeters mostly from the front seats, i guess if you are sitting in the back seat you probably could hear the tweeters back there as well since the windshield bounces the sound out away from the glass. Now the back doors, the passengers in the back can enjoy full range stereo thanks to the door speakers back there. In the front seats you can actually hear the rear speakers if the front to back fader on the radio is set to balance those out. The speakers in the doors have a plastic plate behind them that have two functions, one is to act as a baffle which helps produce full bass frequencies using the door as speaker cabinet and they act as a guard against water. It's a Jeep thing, some "people" drive them through water, deep water. It's called water fording. lol but you better be sure your door seals are good, ours need replaced, most Jeeps can play in the water and if a snorkel is added to the breather , they can go pretty deep. I have seen extreme water fording where the Jeep was completely submerged. Not for me lol It's my only ride and I'd rather not get it stuck deep in a pond with no hope of retrieving it. lol Something else that affects our hearing in any environment is the various materials used to manufacture furniture, houses etc. In a car, the fabric and plastic actually either hamper sound, bounce sound or absorbs the sound. The seats in the jeep are cloth, while the floor is carpet and the rest of the interior is plastic, some car seats are vinyl, ouch! Hot sun and Vinyl! Placement of the speakers is just high enough to clear the seats, the center console and still offer full stereo. The back speakers are the same way, but the back seats do not have a plastic center console to bounce sound around the cab, it is a three passenger bench seat. And I don't think this affects the sound much, but the ceiling of our jeep and most vehicles is a thin board of pressed wood covered with a thin insulating material and a head liner. Most cars/trucks have some type of insulation in the doors, dash and the interior walls, I am not sure how that would affect sound other than reduce road noise and offering a way to control the temperature inside the car. Front passenger speaker.
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Post by Deleted on Nov 29, 2015 20:58:46 GMT
Audio in a Vehicle
Very interesting problem, that of getting sound perfect inside a vehicle.
Obvious limitations are the ones mentioned, the few places where loudspeakers will fit in to the space without having them on the windows.
If it didn't ruin the lines of the design as seen from outside it would be useful to have the roof raised by 16-inches so speakers could be placed above the windows.
If there is a better way to do it, you will find it.
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Post by bluebucketradio on Nov 30, 2015 21:12:25 GMT
My neighbor, one of the few i can tolerate has a 89 Jeep Cherokee Sport which is the box body style. In the back where his tailgate is located, there are speakers mounted on the ceiling that are mounted in such a way that they direct sound towards the front of the vehicle. Sound pretty good for a factory radio.
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