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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (5719 topics).
5719 topics · 27691 messages
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How to build a pre-clipping detector in SigmaStudio?
Hi, I'm working on an ADAU1701 based guitar pedal design and have been able to build almost everything I need in SigmaStudio 4.7. The final piece I need to build is a pre-clipping or level detector th
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Detecting an active input I2S signal to drive a GPIO flag
Hi. If you're Dave Thibeau, hi again from Santo P.! I hope you're well and look forward to meeting you in Munich. I'm making a second version of the preamp with the ADAU1701, and this uses the I2S inp
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Can the ADAU core write values to EEPROM? How can I write the Toggle Counter value?
Hello, I use a button to increment the index in the 'toggle counter', and this index selects the equalizer curve via 'index selectable filters'. Everything works as expected, but I don’t know how to w
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How to use SigmaStudio Software in a custom design. Is there any additional hardware required to connect the design into SigmaStudio
To control the DSP, I need to use SigmaStudio Platform. In order to do that, do i have to add additional hardware which is inside the USBi module? User guide for EVAL-ADAU1701MINIZ ADAU1701 says that
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Volume dependent a high pass and peaking parametric EQ filter
Hey all, I am struggling to implement sliding and dynamic filters in SigmaStudio. To maximize fidelity in a pro grade speaker, I want to have a high pass filter set to a certain frequency (e.g. 30hz)
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Hello, My name is Anna and I am currently a senior in college. I am in engineering design and my team was given a task that requires us to create an active noise-cancelling device. After some research, my team decided to purchase an ADAU1701 DSP from An
This is the USBi pin out: Heres the DSP pin out: Audio Signal Processors software sigmaStudio 4.7 SigmaDSP Audio Processors
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Using ADAU1701 with 32-bit I2S input from external ADCs
Hi, I would like to use two TI PCM1809 ADCs to supply 4 channels of audio via I2S to an ADAU1701 so that it can process and output the resulting audio stream via two I2S ports to an amplifier. The PCM
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SigmaStudio+ Master control block doesn't work (same xml as SigmaStudio 4.7?)
Hello, I moved my project from SS 4.7 to SS+ 2.3 because checksum errors, and now I'm dealing with several problems. My actual is the Master Control Port Block I made a test project with just this: A
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Problem with custom board sound
Hi, I need some assistance with making our custom board with ADAU1787 play sound. The codec is connected to the MCU via I2C for control, and via I2S serial port to play sound. An external oscillator i
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Noise Gate not in toolbox
Greetings, Based on this doc wiki.analog.com/.../noisegate I should be able to find the "noise gate" schematic in the toolbox (ADAU146x is mentionned in the supported targets) However I can't find it
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Evaluation board for an multiple-channel active noise cancelling system
Hi, i'm planning on implementing an ANC solution with the following restrictions : about 400µs to process the signal from beginning to end interface for 6 microphones via I2S (2 would be fine to
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PLL_CTRL0 editing should happen before PLL_ENABLE changes from 0 to 1, but sigmastudio generates code where PLL_CTRL0 is edited after PLL_ENABLE is changed from 0 to 1
Hello We have a project utilizing the ADAU1462 and have noticed the file generation for the function "default_download_xx" where xx depends on the project name, might be wrong according to what is spe
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Missing Single Channel RMS Compressor with configurable point density
In SigmaStudio 4.7 I am able to use the 'Dynamics Processors -> RMS -> Full Range (-140dB to +40dB) -> No Ext Detector Input -> 1 -Channel -> RMS (No Gain)' Block to create a single channel RMS limite
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Checksum error using interface write
Hi everyone, 2 years ago I started a thread with the same problem. Due to my routine, the project became a dust collector haha.... So, now I'm back and spend more 30h trying make this work, without su
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SPDIF RCA/Coax interface understanding
Hello EZ, Here I am with another question thats probably really stupid. I'm a mechanical engineer deeping my toes in audio electronics so please bear with me. I have sucesfully designed a PCB that is
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ADAU1701 as Dynamic Mic Preamp
Good day I have a ADAU1701 board from Dayton audio. I wanted to ask if anyone here i using this a Mic preamp. Is this possible? would i need to just cascade gain blocks to get up to the 60db range? Au
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Codec at 192k while code at 12k
Dear community, I have trying to use Evalboard Adau1467Z with different sampling frequencies. The idea is to implement ANC algorithm so I need to use de AD1937 codec at high sampling frequencies, i.e.
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What are the differences between ADAU1860 and ADAU1861?
Hi ADI Team, I would like to ask what the differences are between ADAU1860 and ADAU1861? Currently, I only know that the packages are different. Are there any other differences? Thanks, Elvis Datashee
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Trying to extract monophonic content of music with arytmetic fonction
Hi everyone i'm new to forum. i setup an adau1701 based 4ch amplifier (dayton kabd4100) in the garage to make some experiment and come to a probleme. I wanted to extract the monophonic content of musi
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Read from ADAU1761 over SPI
Hello EZ Community, I am trying to setup the ADAU1761 using SPI on our prototype board. So far I’ve had no success setting it up or reading from it. Initially i tried reaching out to technical support
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EVAL-ADAU1466Z - SPDIF Input
Hello, This is my first post on this subject as I've very new to the whole Sigma Studio world. I'm attempting to build my first DSP x-over using the EVAL-ADAU1466Z. Ideally I want to make use of the d
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Getting started with sigma studio
I need to make basic program in sigma studio for codec adau1761 custom board, export it as c program. Pls suggest how to get started? Thanks. Audio Signal Processors software SigmaDSP Audio Processors
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Problem with Arithmetic shift operator
Dear community, I have a question regarding the arithmetic shift operator. Whenever I shift a bit to the MSB it shows 7F FF FF FF. See the screenshot below. After some research, I understand this is t
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ADAT Lightpipe with Serial Port and external Logic
Heiio community, I want to send 8 audio channels via ADAT from a sigma DSP to PC. After reading this discussion https://ez.analog.com/dsp/sharc-processors/f/q-a/61533/sport-and-adat I came up with an
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Detect sample rate and flag/switch output
We're using a ADAU1701/1401 for a certain project and we would like to automatically flag/switch something else based on the sample rate that's being used in the DSP. Would there be an easy way to det