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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (42 topics).
42 topics · 202 messages
Filtered by: #frequency ✕
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Problem when generating tones (other frequencies appear)
Hello, We did some research with the evaluation board of the ADAU1452 and we managed to implement some great delays that we were needing. We are now re-designing the SigmaStudio project (in older proj
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Will the ADAU1467 ever get Frequency Domain blocks in Sigma Studio
The original SigmaStudio toolbox wiki listed the ADAU1467 in frequency domain processing as of 2020, the draft updated front page has it removed. I'm just wondering if this functionality will come to
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Any Engineer that can help with ADAU1701
Hi There, I am just going to ask this question again as previously i had been unclear, Just some background below. Portable Bluetooth Speaker with DSP Trying to implement a 5 band Graphic EQ in sigma
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90 degree phase shift of the output signal with respect to the input signal
I how can I make a 90 degree phase shift of the output signal with respect to the input signal with Sigmastudio for the DSP Board ADAU1467 for a bandwidth of 80 to about 16,000Hz ? This is not possibl
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Chime Freq-Gain Frequency Increment
Hello, I have been attempting to use the Chime Freq-Gain block in DSP program, however, I am not exactly sure what to write to the DSP for the frequency envelope to function as intended. I have seen a
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Sigma studio for ultrasonic application
Hello ! :) Im a student in engineering, my project is to develop a directive speaker based on a ultrasonic piezo array. The audio signal should be modulated with a sine carrier (AM, DSB). The carrier
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ADAU1452 PLL lock not working on custom PCB
Hello, everyone! We are developing a board with ADAU1452, which includes AD1938 and TPA3255. We have a problem: the ADAU1452 does not work on our board, but it works on another debug board nearby. Con
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ADAU 1701 - Is there an Advantage of using a 24,576 MHz Crystal than a 12,288 MHz Crystal? Is there a different noise result?
Hi there, I'm new to the Support Community and I hope that I write in the correct Place. I have an ADAU1701 Evaluation Board and would like to know what the advantage is of using a 24,576 MHz Crystal
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ADAU 1442 FIR number
Hi, I have a problem with the DSP ADAU1442. I use 3 FIR filters with 200 coef. in average, the filters work perfectly. But, when I add a others FIR all cutoff frequency divide by 2. I don't understand
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[Bug Report]Sigmastudio Undesired 20kHz high roll off when using the Auto EQ single band.
When using the single channel Auto EQ there is always a high roll off at 20kHz. Attached an example of a reverse "loudness" curve that is imported in order to create a loudness curve. The filter numbe
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Square / Sawtooth / Triangle Wave Frequency Control
I've just started learning SigmaStudio, using the EVAL-ADAU1701MINIZ, with the end goal of creating a mini synthesizer with external controls. One requirement is external control of the frequency of s
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ADAU1701. I need to build three phase VCO.
Hello all. I am not a very experienced user. I apologize if my question is trivial. Here I did not find the answer. I need a three-phase variable frequency generator (350-450 Hz). Unfortunately, I cou
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Estimating frequency of a signal in sigmaDSP
I'm working on EVAL-ADAU1467Z based SigmaDSP. Due to my application requirement, I have to estimate the frequency of the incoming signal (specifically audio signal) at every instant of real time. i.e.
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FFT and Analysis Window blocks documentation
Hi folks and analog devices employees, I recently was recommended (See this topic) SigmaDSP processors ADAU145x and ADAU146x for an specific application which requires frequency domain analysis. Now,
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Generating overtones with fixed phases in SigmaDSP processors
Dear colleagues! I would like to share my experience in generating overtones (harmonics) of the sine tone with fixed phase relationships in SigmaDSP processors. For example if we need to generate sine
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A -1701 FM MPX Demodulator
This is a just-for-fun project, for which no claims are made that it's optimal. I just drew it up in half an hour a few months ago, and then tweaked the thing until it worked. The incoming composite s
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Frequency dependant gain stages
Hi, We have a question with regards to the ADAU1701 and Sigma studio that we hope you can help with. We are trying to simulate a constant current output from a voltage amplifier (power amp) when drivi
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HILBERT TRANSFORM on 1701
Good morning to everybody I use the version 10 BETA of Sigma Studio, in the attached figures the result is seen. Doesn't something work it is a bug of the releases? Other problem, writing this simple
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FIR and general filtering on ADAU1701. Hints about fixed point arithmetic!
Hi everybody, I'll show you what I've done and what results I got. Aim Exploiting ADAU1701 to correct a loud speaker frequency response (from 40Hz to 1000Hz) in order to make it as flat as possible in
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Problem with FIR filter frequency cut and sampling frequency
Hello everyone, I'm quite new with DSP programming, so here is my problem : I have an EVAL-ADAU1761Z and I am using SigmaStudio. What I wish to do is to use 7th order filters (so the only solution is
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"Voice Stress Analyzer" for SigmaDSP
It's in quotes because no claims are made for accuracy, merchantability, or fitness for a particular purpose. Rather, this is a fun gadget with which to impress your friends and kill time. As the theo
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Eval-Adau 1701 miniz / Sigma studio frequency
Hello, I chose and I bought your device for my project. I need help with your software Sigma studio. I have high school project about this analog device. The input devices I have connected the generat
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Relay With 1701
Hi to everybody I need to realize with 1701 a relay audio, as in figure. Pressing a button I have to effect the commutation and to maintain her for the whole time in which the button stays pressed, to
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SAMPLE RATE 1701
Some question: it is possible to resolve the limit of the sample rate. I have a problem I need to exploit all the 1024 available instructions on 1701 however I need a sample rate of 96000 and with 960
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Help getting ADC in ADAU1701 to have proper sampling rate.
Hi, My senior design project is having trouble with our ADAU1701 Eval board. According to the specs, the ADCs should be able to run at 48kHz and beyond, however we are seeing very poor square wave per