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STA326 and/or STA329

A company in China has designed a new amplifier for one of my biggest clients.However, when they sent us samples it is powered by the STA326 chip.As part of my due diligence I realise this chip is marked "obsolete'.When I asked the manufacturer about...

KMill by Associate III
  • 241 Views
  • 6 replies
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Pre-calculation of Geortzel coefficient

Hello, I have found an implementation of the Goertzel algorithm that contains code that I don't understand. And more specifically the pre-calculation of coefficients. :pensive_face: At the top of the code there is :#define DTMF_697Hz 27980 #define DT...

MLamb by Associate
  • 195 Views
  • 2 replies
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I am using the example project MEMSMIC1 in order to stream audio to host PC. But it is not working beside the following configuration: 2 channels, 16000 sample rate.

When I am changing the number of channels to 1 channel.it is recognized by the windows driver, but the"advanced" TAB is disappear (unlike 2 channels configuration). Did someone faced with this kind problem? Do I missedsomething? of course, audacity d...

AA.10 by Associate III
  • 211 Views
  • 0 replies
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How to know the integrated model

I have an integrated one of an ultrasonic washing machine.This when measuring its frequency oscillates in 80kHz, but after a few minutes it begins to decrease the frequency and increase uncontrollably, so I have decided to change it.the question is t...

RCoto by Associate
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  • 1 replies
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Biquad Design Tool - error importing custom response

Hello, hopefully this is the right place to post this.I am trying to use the Biquad Design Tool (v1.0.0.0) that is described in the Birquad Library UM1625 manual as part of the X-CUBE_AUDIO firmware package. I'm trying to generate a simple bandpass f...