General > General Technical Chat
Microphone design
sandalcandal:
--- Quote from: ysl on October 27, 2020, 06:50:51 pm ---Well I don't really know which engineer of the likes of which sandalcandal described would get engaged in such a project for free, so I don't really know if I can count much on free help to be honest. I got no problem open sourcing the project, I open source most of my code and I use open source daily. I don't think it would directly harm the product.
--- End quote ---
I think you'll get pretty good advice on here or other places with just a high concentration of skilled engineers on a public forum. Quite possibly better than a 500€ freelancer. Especially if you're willing to do the "leg work". Post your idea here, get feedback and ideas on what needs to be done, go do it yourself then bring back the results here to share and repeat until the project is complete. Even though at the current stage you're inexperienced you'll likely never get stuck with the freely available help and advice.
I think you've shown a pretty good willingness to communicate and take feedback onboard. If you keep this process of working hard then coming back here to update and share progress I think you'll do very well. Perhaps start a new thread over in the projects board https://www.eevblog.com/forum/projects/
No need to do it all at once, you've already set yourself a year at least. As long as you check in regularly and give people updates on what you've done I think you'll get practically unlimited help.
ysl:
--- Quote from: nali on October 27, 2020, 06:31:46 pm ---In addition to the above, what exactly does "decent sounding" mean? For example I once built a desktop mic for my Yaesu transceiver... it had some audio compression and a bit of diode clipping, and sounded really good over the air. But it'd sound awful if you wanted to record a musical instrument or use it for video presentations. There's a reason specs tend not to use adjectives - that's left to the marketing types after the design work is done and the product made.
--- End quote ---
Well, with decent sounding I would describe a good sounding microphone for daily use by average users mostly for communication. I don't really have expectations that the microphone could be used in a professional setting. I just want it to be enough and satisfying for normal day to day use.
Regarding the microphone itself I'm trying to make some sense from other microphones which I can find teared down.
This one for example https://prnt.sc/v8597j is being sold at ~90-100€ and from a quick glance doesn't seem that sophisticated. I'm not sure to judge but at least it doesn't seem intimidating at all. With my limited knowledge I can recognize a CM6327, a crystal and some capasitors, I don't know about the rest I've already looked up to the IC pins and to be honest it doesn't seem so hard to setup a basic circuit for this, maybe I'm mistaken.
ysl:
--- Quote from: Cerebus on October 27, 2020, 06:32:53 pm ---Turn that around. You can probably judge what someone's like by the questions they ask you when presented by a brief as open as "I would like to create a decent sounding desktop microphone at the 40-50$ range and I'm trying to look for somebody that could help with creating schematics and the PCB layout.".
You'll probably get asked all of those in this thread while people try and figure out what it is that you really want to do. I'll kick off:
"What features are you looking for that stop you from just buying an existing product off the shelf? Or phrased alternatively, what features in your product are going to differentiate it from the others on the market - what's your USP?"
--- End quote ---
Yes you are right, I should clearly mention all the specifications in the first post. I've partly replied to two of my answers but I'll sum it up as a decent looking/sounding desktop microphone which looks relatively like this https://prnt.sc/v85jcp or this https://prnt.sc/v84zpk and maybe a knob like this https://prnt.sc/v85kwq if we could pull this through.
I don't really think there are many options in the 50$ even 60$ range.
ysl:
--- Quote from: sandalcandal on October 27, 2020, 07:04:06 pm ---
--- Quote from: ysl on October 27, 2020, 06:50:51 pm ---Well I don't really know which engineer of the likes of which sandalcandal described would get engaged in such a project for free, so I don't really know if I can count much on free help to be honest. I got no problem open sourcing the project, I open source most of my code and I use open source daily. I don't think it would directly harm the product.
--- End quote ---
I think you'll get pretty good advice on here or other places with just a high concentration of skilled engineers on a public forum. Quite possibly better than a 500€ freelancer. Especially if you're willing to do the "leg work". Post your idea here, get feedback and ideas on what needs to be done, go do it yourself then bring back the results here to share and repeat until the project is complete. Even though at the current stage you're inexperienced you'll likely never get stuck with the freely available help and advice.
I think you've shown a pretty good willingness to communicate and take feedback onboard. If you keep this process of working hard then coming back here to update and share progress I think you'll do very well. Perhaps start a new thread over in the projects board https://www.eevblog.com/forum/projects/
No need to do it all at once, you've already set yourself a year at least. As long as you check in regularly and give people updates on what you've done I think you'll get practically unlimited help.
--- End quote ---
I feel like I've received much help already and I'm really happy you guys genuinely trying to help instead of turning me down for a post that otherwise I'm sure seems at least questionable.
To be honest I'd love setting up a workbench and getting my hands dirty and I've yet to cease considering it. I'll wait to see if I there are any positive responses from an engineer, get a better idea for the scope of the project and I could very likely take the route you're suggesting.
Thanks a lot for your input :)
sandalcandal:
Not sure if you're still here or looking. Came across this: https://hackaday.com/2020/11/02/building-a-top-notch-electret-microphone/#more-444263
Gives a good guide to the process of building a microphone that should come out to something near your target cost at least in terms of the BoM.
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