Hello, Im relatively new to arduino but I would like to build a ultrasonic directional speaker as I have seen a few of them on youtube. I would like some help picking out the parts that I will buy. I would like to know what parts provide better sound quality etc.
What test would you suggest that will determine the better sound quality?
Thank you for the fast response, Ive seen a video that said that a faster duty cycle could make the quality higher in terms of bits (if I remember correctly), but Ive also heard that certain components make the speakers louder than others, since they can deliver more power. Id like to know what specific parts people recommend to make my speaker clearer and louder, I dont have much experience so I dont know what things to buy
Please provide some technical specifications on your speaker. So far you have provided zero information relating to your project.
Please describe this thing and what it will be used for.
Since by definition no one can hear ultrasonic sounds, I'm wondering what "better sound quality" is supposed to mean.
parametric speaker
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We have ultrasonic range finders good to 4.5 meters.. reflected off hard smooth surfaces, not off fuzzy clothes in my experience. But they are directional in a cone.
<aybe give a link to what you are seeing? There's a lot BS on the internet.
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Im so sorry for not describing it so well, but that is one of the videos that I have watched. I want to build a parametric speaker that uses modulated ultrasound to make sound travel in a cone. I was planing on copying most the parts in that video, but he mentions that he only used parts that he already had and it was a $20 budget video. He said that other parts could provide higher quality than 11 bits of processing, and that the speakers could handle more power. He doesnt mention specific parts, so I am looking for upgrades to the parts used in that video and I can’t find the parts that he uses for a good price so I am also looking for other alternatives.
I just did it like his. I had to replace the STM32 on the BLueMeanies or whatever they are (had counterfeits). "Quality" wasn't a big concern.
Yeah, i think sound audio is harder to notice compared to things like video quality, so I might just build it exactly like the video. Did you run into any problem with the project or did it go smoothly?
Get something to work first, before worrying about upgrading. I suspect building this project and getting it to work will be more difficult than you imagine.
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If you've done projects before it's like making a kit. It's probably not for the totally inexperienced. I used a L293D module as the speaker amp.
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quod erat demonstradum!
I'd like to hear it with speech for the lower tones,
the demo audio was mostly higher pitches.
laser? Closer to a narrow cone led but definitely interesting!
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It's more interesting, to me, 'bouncing' the sound off walls, cabinets, windows.
Perhaps a ventriloquist dummy?
Yes, I would like to play around with that aswell
The most important videos that I watched were these ones.https://youtu.be/9hD5FPVSsV0?si=EAxjyEm_hvfKiKgK
Hi! I did manage to build the system, but I would like to use a more powerful amp, the tc4427a is not enough. I have a SN754410NE on hand, do you know if that could work? Otherwise I will just have to buy a L293D. Could you provide me with some pictures of how you connected the L293D to your circuit?