3 ms·

Look forward to that, something on my list of things to do. Though for the mic array, I want to try out contact microphones, make a whole house far-field array

by Zenst 7y ago

Look forward to that, something on my list of things to do. Though for the mic array, I want to try out contact microphones, make a whole house far-field array that way, might work, might not, but it will certainly be educational. One aspect I've worked out is how to make a balanced contact mic using two piezo discs stuck back to back with a rigid layer in between acting as the pickup. Trick is that as the two discs are back to back, they effectively produce a balanced signal and that alone helps eliminate so much of the static/noise that contact mics due to impedance are susceptible too.

Havoc 7y ago
Well it's currently shipping so I'm doing this for better or worse Mic array...pretty sure the tech I ordered (respeaker 6 mic) is towards the top end of DIY mic arrays so hopeful that I'll get good real life results. Also very keen to work out whether I can use tensorflow to filter out baseline background noise BEFORE feeding the audio stream into mycroft. Planning on launching a new blog to document my experiments and failures on this ( https://kaizen.today https://kaizen.today - not yet live cause still waiting for said tech...but SEO links and all that)
- MapleWalnut 7y ago
  I've used the same mic array and the provided software isn't great. In fact it's terrible, but ODAS[0] is amazing. It's super accurate, can track/isolate multiple audio sources, and has a web ui to visualize it. They also have config specifically to handle the respeaker and raspberry pi. [0]: https://github.com/introlab/odas https://github.com/introlab/odas
  - Havoc 7y ago
    Amazing! Thanks for the helpful link
- Zenst 7y ago
  Yes, they have MEMS, looked at those a while back, was after something that I could add external mics as I need in my case and kinda ended up looking for a 5 mic input solution. Which last I looked entailed an external music input via USB unless I made something from scratch (would like to do that though wanted to work on the software and viability aspect of what I had in mind). But as that is one of my to do projects, I'll look into it again when time and resources prevail as things move fast in tech and might be something more suitable for my needs by the time I get around to this. https://www.matrix.one/products/voice https://www.matrix.one/products/voice Just read about that today, no idea if better than the respeaker option - software/support/features..etc, but may be worth having a look in too.
  - Havoc 7y ago
    That board actually looks pretty good too! To my untrained eye the specs seem superior (higher SNR & sensitivity). Respeaker appealed to me due to it being fairly mainstream. I've learned not to stray too far from the pack on SBC things. Community support & info falls off a cliff

by Zenst 7y ago

Havoc 7y ago

Well it's currently shipping so I'm doing this for better or worse Mic array...pretty sure the tech I ordered (respeaker 6 mic) is towards the top end of DIY mic arrays so hopeful that I'll get good real life results. Also very keen to work out whether I can use tensorflow to filter out baseline background noise BEFORE feeding the audio stream into mycroft. Planning on launching a new blog to document my experiments and failures on this ( https://kaizen.today https://kaizen.today - not yet live cause still waiting for said tech...but SEO links and all that)

MapleWalnut 7y ago
I've used the same mic array and the provided software isn't great. In fact it's terrible, but ODAS[0] is amazing. It's super accurate, can track/isolate multiple audio sources, and has a web ui to visualize it. They also have config specifically to handle the respeaker and raspberry pi. [0]: https://github.com/introlab/odas https://github.com/introlab/odas
- Havoc 7y ago
  Amazing! Thanks for the helpful link
Zenst 7y ago
Yes, they have MEMS, looked at those a while back, was after something that I could add external mics as I need in my case and kinda ended up looking for a 5 mic input solution. Which last I looked entailed an external music input via USB unless I made something from scratch (would like to do that though wanted to work on the software and viability aspect of what I had in mind). But as that is one of my to do projects, I'll look into it again when time and resources prevail as things move fast in tech and might be something more suitable for my needs by the time I get around to this. https://www.matrix.one/products/voice https://www.matrix.one/products/voice Just read about that today, no idea if better than the respeaker option - software/support/features..etc, but may be worth having a look in too.
- Havoc 7y ago
  That board actually looks pretty good too! To my untrained eye the specs seem superior (higher SNR & sensitivity). Respeaker appealed to me due to it being fairly mainstream. I've learned not to stray too far from the pack on SBC things. Community support & info falls off a cliff