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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (25 topics).
25 topics · 110 messages
Filtered by: #table ✕
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SigmaStudio+ Indirect Parameter Accees Table
In old SigmaStudio you could add a parameter to the IPAT with a simple mouse right-click. Is there a similar feature in SigmaStudio+? I can only add it via the IPAT table but it gets annoying when the
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Indirect Parameter Access Table
Hi, Having issues with the IPAT. I have enabled the proper options, built a table, did the update, recompiled and then stored to EEPROM. For some reason, I cannot access the IPAT addresses, just the o
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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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Wrap/return to zero index when index count is exceeded
Hello, How to "wrap" index in "Index Lookup Table"? I use two buttons - one to increase the index, and the other to decrease. This is how I select the eq curves. I'd like to limit it to one button, on
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How to map Indirect Parameter Access parameters to GUI controls?
I am learning about the Indirect Parameter Access and can't locate any documents that correlate the gui controls on schematic components to the parameters listed for indirect access. Some are obvious
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ADAU1761 - RMS Table RMS TC and Decay do not correspond when set to the same rate
I expect the output graph to look like the one at the bottom in the image, however, the result is asymmetrical like in the top graph in the image. Am I understanding the RMS Table settings incorrectly
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problems with index selectable filter
Hi all, I'm developing a speaker for monitoring on a stage. I'm very happy, everything works really fine but... I wanted to implement an index selectable filter but even with the simplest schematic it
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Indirect Parameter Access Table
Hello, there are some new parametersets in the selection box concerning the params of the moduls: current... and target... (see picture) What do i have to choose to write new values? Marc DSP: Adau 14
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Hierachy boards and indirect parameter access table
I have a design in SigmaStudio 4.5 using the ADAU1452 with hierachy boards where, for instance I have 4 output channels which have the same processing map. So each channel has an identical Hierachy bo
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What is the Adjustable Low Pass Filter "Step" mean?
Hello guys, Can someone help me to understand what is the " Adjustable LPF " function block which has one parameter call "step", what is this actually work at? I am using ADC to adjust the Low pass fr
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Indirect Parameter Access Table Read/Write to same parameter
Hi, i would like to perform both reading than writing to a parameter but don't know how to. In the wiki is explained that two separate indirect addresses should be used but looks like the image is mis
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ADAU1701- Question of making a adjustable Phase control
Hello everyone, I have searched the related question in the forum, and I found this topic: How to use sigmastudio software to realize an external potentiometer to control phase, the phase of the range
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Help with Sigma Studios Parameter Update block
I am using Sigma Studios 3.14 to program an ADAU1761. I am trying to use the output of a Look Up Table (w/ min and max) going into a Parameter Update block to control the threshold parameter of a Voic
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Processro recommendations for a small portable ANC system?
My colleague and I are looking to find a board that would suit our purposes for developing a robust mobile ANC product in an open environment. We're stuck on deciding between the ADAU144x, ADAU176x, a
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Bug report FIR filter table
Hi, When using big FIR tables I often find the SigmaStudio runs out of memory and stops working. I've raised this issue already in another discussion with pa_py but it's not solved yet so I try to rai
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sigma studio rms table
Hi all How do I calculate the value of the RMS TC (attack) and the Decay value in real time? what is the formola requiered . And what are the last 2 values in the RMS table data structure how do I cal
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SigmaStudio programming .NET
Hi I just started in SigmaStudio and I'm programming with the script. So far I have written this: // #LANGUAGE# C# sigmastudio.ProjectNew(); sigmastudio.ObjectInsert( "USBi", 50, 150 ); sigmastudio.Ob
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Is there any documentation for the ADAU170x's Log Lookup Table?
Hello, The Log-spaced Lookup Table is a welcome addition to the ADAU1701 toolbox -- it can simplify audio control or measurement where a large dynamic range is needed. Unfortunately, I cannot find any
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Lookup table and volume
Hello, It's been 2 days I've been trying to use a rotary encoder as volume control for a ADAU1701… without success. I first tried to use the dedicated rotary volume control. The only time I got it wor
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Auto-select the mux input with signal (help)?
There maybe something on this already in this forum, if so I apologies for the repeat but I couldn't find it. My application is this: I have two stereo analog inputs that run into an indexed multiplex
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How to determine which frequency band has highest magnitude
Hi all. I'm using ADAU1701 and SigmaStudio 3.10 beta. I want to design a Index Selectable Filter to cut off the audio feedback from different sources, eg: microphone, hoots and howls, Different source
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Idx Selectable Indp. Multiple Band Filter doesn't allow Peaking Response
Hello, The Index Selectable Independent Multiple-Band Filter helps to save instructions when a choice of filter arrangements is needed, as described in the wiki: https://wiki.analog.com/resources/tool
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RMS Table range
Hello, I'm experiencing some unexpected results from a RMS Table block inside a Sigma (3.1) DSP project for 1701. What is the table output for signals exceeding +6dB RMS amplitude? Is it the clipped t
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How to calculate an RMS table values to select filter curves?
Hi, I am a beginner in Sigma DSP, using the ADAU1701 chip at MINIZ eval board. In my application, i have an filter with about 31 curves, then i need to select the curves trough the auxiliary ADC (by p
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ADAU1761 RMS detector problem
Hello, I have found what I believe is an issue with the RMS Table. It works as expected until it's input level drops below ~-75dBFS. Below this level the table appears to wrap and does not produce the