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Re: How to improve your Chipod audio/video quality for free

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Originally Posted by HubbleMart";p=&quot (Post 25412)

Quote:

Originally Posted by michiganjfrog";p=&quot (Post 25401)

As a speaker designer, you must have a lot of speakers on hand. Try it on throwaway speakers if you are curious to see what effect it might have, and whether it will damage the drivers.

As a speaker transducer / driver designer, I work with materials & their properties.
Exposing a plastic such as PP to temperatures way below freezing will & do cause hardening or brittleness of the material at room temperatures. (a study of the material's behaviour over temperatures will tell you so). This in turn will harshen the sound above the cone's break-up point. (the break-up is more harsh due to lower damping). This is one of the reasons why some of the best speakers do not use plastic based cones, as they tend to sound different over time.

Secondly, a large driver, with a 3" voice coil will on an average have a coil with the wire length exceeding 50 meters. As a part of the curing process of some of the high-end coils, we heat them to a temperature above 500F while ensuring that the coil is in a fixture and not allowed to change shape.
Besides, the metal (copper / aluminum) in the coil will again heat up quickly the next time you feed real power into the speaker, thus neutralizing any positive effect the freezing might have had on it.

As I said before - this stands more true for the larger high power drivers & those using plastic / PP parts.

Come to think of it, the drivers I froze were probably paper cones, but with rubber surrounds. I dont know the size of the voice coil, but apart from the Philips tweeters, it did include a large woofer, perhaps 12" diam. I have some speakers with poly cones that I was "one day" going to freeze, but having read this, I'm even more curious to go ahead with that. I believe I may have read about some people freezing their drivers with poly cones, no reports of faults, but I can't recall for sure at the moment if they were indeed that material. We're not talking cryogenic temperatures here either... I dont know that most domestic freezers go much below 0, at least not Farenheit.

Re: How to improve your Chipod audio/video quality for free

has anyone tried longer freezing, fridging or slower thawing to room temp times? or number of repetitions? im currently trying this on my Black Hawk and 2 uxcell headphones. i would do it to my FMP 1.8 but i cant live without music at school and i didnt want to mess around with transferring files over (transfer speed is 800KBs (0.8MBs) :oops:
ill leave it in the coolest freezer for 24hours, fridge for 12 hours and put it in my car refridgeration cooler (with power adapter) for 6 hours then let it cool down by itself slowly

Re: How to improve your Chipod audio/video quality for free

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Originally Posted by clackers91";p=&quot (Post 25583)

So do it on one mp4 at a time. Then when the Black Hawk is done, shove the FMP in the icebox, use the BH. Longer freezing times shouldn't be necessary because it only takes so long to get to the freezing stage (I generally do 12 hours min.), and I don't see that it would help to go through many freezing cycles without subsequent thawing cycles (remember that a domestic freezer is always cycling off). 6 hours is a good amount of time for the fridge phase.

The longer the thawing time however, the better, so after you take the stuff out of the fridge, its good to keep it wrapped well in blankets and in the coldest part of the house. More repititions might also help, but note the inventor didn't find merit in more than 2 repititions. I personally haven't tested more than 2 (although I'm sure I have frozen things more than 2 repititions). Also, whatever accessories that come with your player, I'd recommend also throwing them in the freezer along with the player. USB cable, charger, power adapter, headphones, case, etc., for better results.

Well, I'd be curious to know whether you perceive any differences after your experiment.

LOL, improve quality of your mp4 player!!
Hey guy, remember that mp3 song is low quality.
what would you want to improve even if your song rate at 320kbps?
Atj inside decompress mp3 in numerical signal ( 0 or 1) not a analog signal.
Freeze was only good to save old battery in a few case.

Actually theoretically speaking, the freezing method does work. You'll need to look at the molecule/atom level to understand the freezing process.

Basically, when something is warm/hot/room-temp, the atoms move freely within it. And when cold/frozen, the atoms are restricted and do not move.

During the fabrication process, fabricating the components for the players, it is definitely subjected to heat at some point of time. This would mis-align some atoms. It will still give you the output that you want, but not perfect.

For engineers or people who design circuits, they would know that theoretical and practical calculations/designs/values are never the same. Part of it is also due to the mis-alignment of the atoms.

hey michiganjfrog, any more quality improving tips?

Re: How to improve your Chipod audio/video quality for free

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Originally Posted by lattesurf";p=&quot (Post 25819)

Actually theoretically speaking, the freezing method does work. You'll need to look at the molecule/atom level to understand the freezing process.

Bingo! Best explanation on the effect I've yet heard.

Quote:

Originally Posted by clackers91";p=&quot (Post 25861)

hey michiganjfrog, any more quality improving tips?

Yes, plenty, but first you have to tell me whether or not you tried the freeze effect technique, and whether you discerned improvements or not! So far, no one has yet come forward to say they've tried it! My feeling is, if this is too weird for people, as it appears to be from some of the feedback, trust me, the other ideas are weirder and even harder to understand...

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Originally Posted by daytovince";p=&quot (Post 25811)

LOL, improve quality of your mp4 player!!
Hey guy, remember that mp3 song is low quality.
what would you want to improve even if your song rate at 320kbps?
Atj inside decompress mp3 in numerical signal ( 0 or 1) not a analog signal.Freeze was only good to save old battery in a few case.

Well, I'm glad my efforts to improve your player are making you laugh, but I don't know if you realize, you're not making any sense. What does the compression rate have to do with whether or not you can improve sound quality? People buy expensive tube amps that are designed solely to hook up to an iPod mp3 player! That means they must be good enough to improve upon. Seems you're also arguing against it with something about digital and analogue signals, which is another irrelevant argument, that has nothing to do with whether you can improve your overall sound or not. If you don't want to risk improving your sound by all means don't, but if you don't understand what effect this might have, you have no reason to argue against it.

Tonight I took the risk. I have put the cheapest mp3 player I have in the freezer. The mp3 player is a 10 Euro SD card shuffle player I bought from Uxcell.

After I did the whole freezer improvement procedure I will give a update and review.

as i don't have school for a week, i have both my MP4 players in the freezer. i will post how i think they sound. i have one dead Glacier waiting to be returned, i might buy another one and do a proper recording showing comparisons between a 12 hour freeze 2 times and a longer freeze. and may even compare even more freeze cycles.

i was thinking a way to show people would be to play the player connected to the line in port on a sound card. the laptop i mainly use has cheap built in sound but the computer i have (although it has a damaged HDD) has a creative X-Fi platinum

Quote:

Originally Posted by clackers91";p=&quot (Post 25952)

Okay, if you find you hear a pos. difference after the experiment, I'll think of some more ideas to try, if you wish. Out of curiousity, did you try your dead Glacier in the USB port of your comp without the battery? Because my dead Glacier did work that way once.

I tried recording before & after once to help others compare differences between a treated player & usb cable, and before treatment. But the way I did it was to transfer an mp3 before and after treatment. It might be more effective to record straight from the player. I've never done more than 2 freeze cycles on anything, so if you do, I'd be very interested to know if you found any differences.