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@jules Thank you for your response. I learned about Symmetrical Impedance from the DPA website

Here is what you asked. - "Output Impedance" refers to the impedance between Pin 2 and ground on the microphone. - "symmetrical Impedance" refers to the impedance between Pin 2 and Pin 3

Hello, everyone. I am someone who has been receiving a lot of help from this community. Recently, I have been studying microphone output impedance. I noticed that there are various terms commonly

By "polarization", do you mean the fact that electrolytic capacitors are not bi-directional, or that they need to see a DC voltag eacross them? There are "bipolar" electrolytic capacitors. they are

I have been using 22uF and 47uF MLCC capacitors for coupling caps with no issues. The impedance is far lower than Aluminum electrolytics. There is one catch -- the Capacitance goes down significantly

Hi all, I've been using polarised aluminium electrolytic caps in my designs as per the advice of members here and also how they are used in schematics like the Alice, etc. This has been going great,

I would like to give a final update on this (marathon) thread. Even if the NT1-a isn't turned on for a while, it still works. No warm-up time is necessary... I recently used it to record lava stone

I had the same experience with them. I ended up ordering some from JLI but spoke to them first and arranged shipping which wasn't the same cost as the actual parts I ordered. I also tried 'Alice' in

Hi Jack, I've had some great results with approx. 25mm diameter, 20mm length and 2-3mm thickness. I'd be interested to know if you get lucky with PI. Last time I checked with them during the summer,

Morning Jack. I have found most of them work. Cylindrical ones make great hydrophones. You want some robustness to them as far as thickness. They key is type of material Please see this for more

?Morning all, I’m on the hunt for some piezo tubes and came across this supplier: Search physikinstrumente.co.uk They seem to have a wide range of sizes and thicknesses available and I wondered

Morning all, I’m on the hunt for some piezo tubes and came across this supplier: Search physikinstrumente.co.uk They seem to have a wide range of sizes and thicknesses available and I wondered what

Today I stumbled upon an interesting project that might also be of interest to some mic builders. It appears that Stuart recently detected a rare sine wave in the magnetosphere, during one of the

I did a tear-down of a $14 USB mic here: https://audioimprov.com/AudioImprov/Mics/Entries/2024/6/30_USB_Mic_Teardown.html This particular example was much better than I expected, especially for the

Welcome to mixed signal design. There are a lot of challenges to this. The opa1642 needs Well filtered supplies but also the high impedance side of things need to be well shielded from the digital

Hi, This is a pretty late reply but I'll share what little knowledge I have in the field of speech enhancement. I apologize in advance if the information posted here is technically wrong or

Hello, To provided an update to this DIY project, I've made an initial implementation with mixed results: The amplification scheme does work and the quality of the microphone output was

Thanks a lot! Found it on Mouser.ca since I'm in Canada, same part number!

When I connected the NT1-a to the audio interface today and turned on phantom power, it worked right away. I feel like the microphone is gradually working and sounding better since we started

I purchased mine from RS Stock No.: 187-8627 <https://au.rs-online.com/web/p/polymer-capacitors/1878627> Mfr. Part No. T520B107M010ATE070 [email protected]> wrote: -- David Walton