Aliexpress Spectrum Analyzer has one BIG Flaw
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- เผยแพร่เมื่อ 18 ก.พ. 2024
- This new-ish LED Spectrum Analyzer is compact, bright, and eye-catching, but it has a (Fatal?) flaw. I show you some of the features, and we discuss the glaring issue with this attractive audio spectrum analyzer.
SPOILER: I like it anyway!
LINKS:
Spectrum Analyzer Link: www.aliexpress.us/item/325680...
Thingiverse 3-D Print SA Bezel Link: www.thingiverse.com/thing:632...
Audio-Related Shirts (similar to what I wear in this video) from Parts Express: www.parts-express.com/search?...
(I do not receive a commission, but they are cool shirts!) - วิทยาศาสตร์และเทคโนโลยี
My grandkids would love it, but knowing that it's not accurate would bug me continuously. Thanks for the info and effort in making a useful video.
Thank you, and thanks for watching.
Nice job on your first home made and designed 3D-printed part!
If you'd like the LED display to look more like a VFD, you can add a slight ND filter to reduce the transitional contrast of the edges of the segments. Additionally, I'd highly recommend turning down the current on the LED's themselves, to dim them down. It'll use vastly less power, and at the same time be flawed in the same way a VFD is: not very bright.
Thank you! and thanks for the pointers. I know I said this display didn't need a glass or plastic cover, but if I were to use it, I would use a tinted or filtered bezel anyway, just to tone things down a bit. Thank you for watching and commenting!
Maybe it is some pre-programmed light show that just reacts to loudness, not on a specific frequency.
I think that is partly how it works, but it does respond to frequencies to some degree... I mean it's not totally random. If you look at the video here: th-cam.com/video/Y3RprROFUaU/w-d-xo.html where there is some music playing on both the LED and VFD SA's there are some similarities. It's hard to know exactly what's going on honestly.
I like it but it's lack of accuracy would drive me nuts. Especially since you have it so you can look at it. I like the other one better but like this one's size better. Thanks for the video. Always enjoy them
Fair enough! Part of me agrees, but he kid in me doesn't mind so much. Thanks for watching and for the comment.
Do you link for where to purchase the good VFV analyzer? Does it have a mic or do you have to wire it direct?
Just found this amazing item on AliExpress. Check it out!
$32.08 | AK2515 VFD Stereo MIC Music Audio Spectrum 15 Level Indicator VU Meter Pickup Rhythm Light Amplifier Atmosphere Lamps
a.aliexpress.com/_mrWLHLo
This should get you close. It uses a built in mic and has 3.5 mm input, which I can't get to work.
I wonder what a static 1kHz sine would look like on both of those displays.
If I get a chance, I'll try it and report back. Thanks for watching and for commenting.
Thanks man, appreciate it.
I did a short 'short' of the 1k tone on both. Yuck! I still like it, for some reason though! Have a good one!
Just watched it, it's not accurate at all! hahah it's probably a loudness meter with a sparkly visuals, just like other people mentioned. Appreciate your research, keep it up!
Where can I get the display board
Here is the link in the description... www.aliexpress.us/item/3256804644371772.html?spm=a2g0o.order_list.order_list_main.31.3b9e1802BoWg6G&gatewayAdapt=glo2usa
Here is the link in the description... www.aliexpress.us/item/3256804644371772.html?spm=a2g0o.order_list.order_list_main.31.3b9e1802BoWg6G&gatewayAdapt=glo2usa
I would think that this is primarily for entertainment and not a piece of scientific equipment. I mean, it's $15. Let's not get too serious about this. It's just fun!
Agreed. Naming it a Spectrum Analyzer implies certain expectations, but it is enjoyable to view anyway. Thanks for watching Brian.