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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (90 topics).
90 topics · 539 messages
Filtered by: #noise ✕
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Low Latency ANC Implementation
Hello, I'm looking to find a board suitable for an ANC project I've been working on. I've currently implemented my one channel ANC system using a FIR filter with 1024 taps, however everything is curre
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Conditioning/filtering of noisy AUXADC input
Hello EZ, I have build a DSP using the ADAU1466. It has been working great for a while know. However, I have mooved it to a new case with a significantly longer wire run for the potentiometer that is
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MCLK issue and replicable Adau chip
Hello every , and Hello DAVE, I look into this ADIEngineerZone for long time, but this is my first time post here. I have a Bluetooth project using Adau1761, the Bluetooth chip cannot generate MCLK to
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ADAU1452 + CS42488 output noise
Hello, I need your advice and help. I have 4 DSP pair boards - ADAU1452 + CS42488. All programmed successfully with fs = 192 KHz . Project is simple DSP 3 way crossover. The problem is permanent noise
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MFxLMS growth
Hi, I'm not quite sure if this is the right place to put forth my question, if in case it's not here please do direct me to where i can find answers to my question. I'm currently working on an ANC pro
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ADAU1701 IIS input 192Khz signal to enable filter, DAC playback has noise
Specific operation description: As shown in the schematic diagram above, currently only one General 2nd filter is added, set to hpf and 60Hz corner frequency. Set the sample rate to 192K and the DSP c
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Anti Noise Setup for machines (ANC) with EVAL-ADAU1467Z, problems with broadband recordings
Hello Forum, we are using an ADAU1467 Evaluation Board to build an ANC setup in an anechoic chamber (for testing purposes). We are using big JBL Boxes and play back a broadband recording of a machine.
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testing FxNLMS block and Switch On/Off block in a real time ANC tube
I'm testing the fxnlms block on sigma studio to cancel noise in a tube. The problem is that when I set the switch to 0 to block the adaptation and maintain the optimal filter the system produces low f
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Hands free device replacement with Sigma DSP?
Hello, I'm sourcing a technology replacement device for a Dual Echo Canceler & Noise Canceler with Dual Codec for Hands-Free device that went obsolete on one of our design. I'm looking for help in cho
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ADAU1467 + DAC = Radio Frequency on the output
Hi, An ADAU1467 evaluation board is connected to a DAC board with ~15 cm ribbon cable (through ground). Spectrum analyzer connected to the DAC output shows 2 spikes (approx 430 and 215 Hz at approx -9
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Much noise when connecting an I2C programmer to a ADAU1701 board .... what would be a general reason?
I have just made a new PCB with a ADAU1701, PCM1808 and 2 x PCM5102A I'm using Wondom ICP5 I2C programmer connected to RST, WP, SCL SDA and GND. When I connect the programmer to the board, I get quite
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EVAL-ADAU1466Z Poor ANC on White Noise and Speech
Hello, I am working on an ANC project for my internship, and I am having trouble getting the platform to cancel certain types of noise. With my current setup I am able to cancel tonal noise, multi-ton
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ADAU1787 Matrix Multiplication?
Hello. I am currently working on noise cancellation for an earphone. I am planning to implement a custom Adaptive RLS filter for this task. I have the ADAU1787 Sigma IC evaluation board with me. In or
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Miscellaneous click and pops with delay block
I have been tyring to implement a simple chorus effect on the ADAU1701 using a voltage-controlled fractional delay, and a couple of sinusoidal oscillators. When I download and run the attached SigmaDS
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HDMI -> Multichannel Input I2S ADAU1452
I'm using the I2S (Input_2) of the ADAU1452 to connect to this HDMI board: HDMI/MHL dual mode separation to extract audio I2S/DSD/ fiber / coaxial (HDMI to I2S/IIS) https://www.aliexpress.com/item/329
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Output noise EVAL-ADAU1787Z
Hello, I have an issue with my EVAL-1787Z board. If I connect headphones to the stereo output of the board I hear an audible broadband hissing noise. I don't know what the expected noise level is, but
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Not able to hear output sound using NR example for ADAU1467
Hi everyone I want to use ANC feature using ADAU167 I have bought PDM mic for input. So at first I was testing with single mic and pair of headphones Here is my setup PDM mic connections CLK -> BCLK_I
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Active Noise Cancellation
Hello guys, As part of my master's thesis, I am dealing with the topic of active noise canceling in the window area. For the thesis I would like to do an experiment to test feasibility. Which circuit
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Help with Modified FxLMS/FxNLMS in an ANC application
Hello, I am currently working on my senior design project for my bachelors in electrical engineering. The project is an ANC device for use on rigid barriers. The idea is to use a tactile transducer as
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Can I use ADAU1467 for active noise cancellation
Hi, I am a noob here. I have a ADAU1467 Evakuation Kit and I am using it very first time. I have explored some of filters in the sigma studio and I am searching for active noise cancellation filter I
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How to eliminate microphone feedback using ADAU1401
Hi Everyone, I am interested in designing a microphone feedback cancellation system using ADAU1401. The problem is when we consider a professional audio system (outdoor/indoor), the sound operator hav
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Getting Started with ADAU1467 Evaluation Kit
Hi, I am a noob here. I have a ADAU1467 Evakuation Kit and I am using it very first time. I have searched all the links in the analog devices website and google but nothing got productive to getting s
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Getting Started with ADAU1467 Evaluation Kit
Hi, I am a noob here. I have a ADAU1467 Evakuation Kit and I am using it very first time. I have searched all the links in the analog devices website and google but nothing got productive to getting s
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ADAU1467 - Suppression of Mechanical Noise and use of two microphones
Hi all, I want to achieve the effect of active noise cancellation (ANC) for the recognition of the human voice with mechanical noise from machine tools and engines (according to the design of the post
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ADAU1401 very low signal to noise ratio
Hello, I have a noise problem with a development board that uses ADAU1401. It's made by a company called MIDIWORX and is almost identical to those mini dsp boards from china that cost about 20$. It lo