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respeaker / usb_4_mic_array

ReSpeaker 4 Mic Array with builtin VAD, DOA, AEC, Beamforming & NS
https://www.seeedstudio.com/ReSpeaker-Mic-Array-v2.0-p-3053.html
Apache License 2.0
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I was wondering #1

Closed Psychokiller1888 closed 6 years ago

Psychokiller1888 commented 6 years ago

I know this is coming soon but....

Looking at the picture on the main page, I was wondering if anybody ever thought about the design........

I mean, this is practically not usuable in any sort of builds. Why? Leds and mics are on the same side as the electronics AND the 3.5mm jack as well as the micro usb power in...

How do you want to build this thing in any casing? while having the mics and leds showing outside?

xiongyihui commented 6 years ago

This new usb 4 mic array is designed to be compatible with the old usb 6+1 mic array as much as possible. The difference is that microphones reduce to 4 from 7, as the audio processing algorithm is improved. Many of our users are waiting for the new one as the old one is discontinued (its main IC is discontinued by the IC Vendor -_-!) Anyway, there is a case for the usb 6+1 mic array:

image

What kind of mic array is you looking for? We would like to listen your feedback.

Psychokiller1888 commented 6 years ago

Well, that's selling your casing. What I'm saying here is in my first post, why are all user meant components of it (mic, leds) on the same side of the board as the system meant components (micro usb, electonic components, jack 3.5mm)?

A slight design change by placing the user interfacing components on the other side, bit like the respeaker 4, would make this unit so much easier to integrate in any kind of self designed casing.

I'm looking at a good product I can intgrate. At the moment I use respeaker 2 and respeaker 4. I have problems with the respeaker 4 drawing too much current on a pi 3b but never got answere (https://github.com/SeeedDocument/ReSpeaker-4-Mic-Array-for-Raspberry-Pi/issues/9)d, so I'm looking for something to replace it

xiongyihui commented 6 years ago

I'm not selling the casing. It's not available even if you want to buy one. We just designed a reference casing, so you can design your own one based on it. The design file is at https://github.com/respeaker/get_started_with_respeaker/blob/master/files/respeaker_pro_case_3d.zip for very long time.

If the LEDs of the 4 mic array draw too much current, you can reduce these brightness or disable the LEDs. See the example to change the brightness.

Psychokiller1888 commented 6 years ago

Wow, I don't think you understand what I'm saying, I'm not attacking anything, I even said it's a great product, but mentionned that the placement of the components leave me wondering if it's been thought at all.

Re current draw, the question is as easy as it is: What PSU is needed to fit the respeaker 4? Because obviously the original one, 5.1v 2.5a isn't enough. If I bought a respeaker 4 it is surely not to turn off the leds, I would have bought a microphone hat without leds otherwise...

xiongyihui commented 6 years ago

The codec and microphones need about 10 mA. An LED with the max brightness drains about 60 mA at 5V power supply. All the LEDs with the max brightness will need about 12 * 60 = 720 mA. The brightness control is necessary

Psychokiller1888 commented 6 years ago

Well, a raspi 3B needs around 700-1000mA. Makes with a respeaker 1730mA Add to that a 7'' screen about 500mA goes to 2330mA which makes me wondering why using a respeaker on an official PSU (5.1v / 2.5A) goes into undervoltage. Thanks for the reply though!