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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (35 topics).
35 topics · 142 messages
Filtered by: #fir ✕
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Upload a project without having to open the schematic
Up to now I have always opened the schematic of the project before to upload it into the board. The board is designed around ADAU1701. I am using the ICP5 programmer from Sure Electronic, and I use II
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how to update flash code using MCU via ADAU1452
Hello Support Team guys, one of our customers would like to update the EEPROM firmware by MCU via ADAU1452. At the first time, the customer use the USBI to flash code into EEPROM. The EEPROM is connec
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ReadBack Parameter Issue
Hello, I am trying to use "ReadBack Parameter" block in my ADAU1787 in order to obtain the FIR coefficients of a NLMS block. These coefficients will be used later on a FIR filter to compensate the sec
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FIR filter on ADAU 1701
I'm working on a project where I need to isolate a sound signal with a frequency range of 20-40kHz while filtering out unwanted low-frequency noise. To achieve this, I'm using a highly sensitive micro
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Inquiry about Integration of ADAU1701 and STM32 for Real-time FIR Filter Coefficient Adjustment
I am planning to develop hardware that incorporates a FIR filter for audio processing, and I intend to use 512 coefficients in my filter. I am considering using the ADAU1701 for this project. I would
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Process each channel in a TDM4 input stream
Hi, I stream TDM4 signal to ADAU1452 sigmaDSP through SDATA_IN0. I want to process each channel from this TDM4 signal (Filter and maybe more). How can I do it? When done processing each channel, I nee
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ADAU1452 FIR TAP count
Hello All, I was wondering, if I have programmed a DSP application, containing a FIR with 6000 taps, is it allowed that I change the tap count afterwards in, for example, 300 and upload 300 new co&eum
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ADAU1452 nLMS coefficients write to FIR filter
I am using a nLMS filter to learn a simple but varying response and I want to apply the learned response to a parallel path. Essentially I want to apply the learned path coefficients to a parallel FIR
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TCPi - Sigma Studio TCP/IP Interface for Raspberry PI and x86_64 Linux ( Ubuntu and Debian )
Hi guys, Im working on TCPi for Linux, that works on Raspberry PI and similar boards, it also works on x86_64 Linux Desktops/Notebooks using I2C over VGA DB15 connector. SPI Interface is in developmen
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Is it possible to offload FIR processing to the RPi 4 NEON SIMD from the ADAU1701?
So my thought is this: since the Sharc came out, there have been advances in process and architecture making the number of coefficients that can be processed through NEON on ARM greatly increased over
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ADAU1467 -FIR filters maximum taps
I am interested in the ADAU1467 DSP. The datasheet indicates that the DSP is able to handle “24,000 FIR filter taps per sample at the standard 48 kHz audio sampling rate”. I am unsure what this exactl
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Upload hex code to DSP from MCU
Where can I find any appnote, how to upload firmware in HEX to DSP (ADAU1466) with MCU over SPI? Is it possible?
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ADAU1467 boot from Linux Host help!
Hi, we have a linux host processor and would like store the FW file on the linux rootfs and load into ADAU part (via ADAU SPI slave port) each boot and on-demand. (i.e not use self-boot from eeprom).
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ADAU1452 HexArray format in compiler XML output
Hello all, I use the xml-file which is generated by SigmaStudio to create an update file for our product which includes an ADAU1452 DSP and a microcontroller, connected with a I2C bus. In this DSP, FI
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ADAU1452 FIR filter POOL component
Hello again all of you :-) Maybe one of you can help me with this. I'm working on a project which involves one audio input and three outputs.Obviously, the audio signal is filtered diffently on all th
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C math libraries for filter coefficients calculations on MCU
Hi, i am use 1452 DSP with STM MCU, my SigmaStudio project have several filters: HPF Hanning with variable Freq and orders LPF Hanning with variable Freq and orders All Pass with variable Freq, gain a
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ADAU 1452 FIR length Sigma Studio
Hi all, Am I right assuming that, if I want to implement a FIR filter in Sigma Studio for a ADAU1452 of 2400 taps, I have to set the length in SigmaStudio to 2401? I've read somewhere that the last co
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Does there has "Half-Order Filter" (3dB/oct) ?
Hello, I am trying to make a 3dB/oct High-Pass Filter, maybe it can call "half-order"? Because as I know the basic order for the first-order filter is 6dB/oct, but how can I make a 3dB/oct filter? her
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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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FIR limited to 700
I am using an ADAU1451 integrated in an audio amplifier (Beocreate) and develop with SigmaStudio. The target is simply to use a 2k FIR. - Even if the FIR limit is 800, I cannot declare a table longer
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Problem on FIR filter in sigma studio
I tried to use FIR Filter Block(coefficients calculated by MATLAB) in ADAU1701 and ADAU1452. But I get different results. ADAU1452 provides a linear phase FIR filter, but I don't want it. I guess FIRS
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Problem using limiter in Sigma Studio after an FIR filter, as the Limiter gets frequency depenent.
Hi, I am having problems with a limiter if I use it after an FIR filter, as the limiter gets heavily frequency dependent. the maximum output level changes wildly with frequency despite being the last
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adau1702 straight through using Linux
Hi there, When I try to probe the adau1702 codec from Linux, it complains that it can't find the firmware "adau1701.bin". If you inspect the kernel driver for the adau1701 https://github.com/torvalds/
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[Bug Report] Sigma Studio FIR filter crash
When loading large FIR filter tables from external txt files in SigmaStudio (I've tried e.g. 4096 and 8192) the program stops responding and reports a crash after a long time (many minutes). I've trie
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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