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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (168 topics).
168 topics · 689 messages
Filtered by: #1787 ✕
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How to implement real-time convolution using SigmaStudio function blocks for ADAU1787
Hi everyone, I want to implement FxLMS-based ANC on ADAU1787 and I have no idea how to implement the convolution with real-time audio signal and the dynamic coefficients using SigmaStudio function blo
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ADAU1787 current consumption in software power-down when using the internal DVDD LDO
We are characterizing the power consumption of the ADAU1787 in a battery-powered embedded platform. During these tests, we observed a large difference between hardware power-down and software full-chi
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FDSP samplerate and SigmaStudio Fs setting
Hi My project is running 192kHz on ADC01 used for FDSP and 48kHz on ADC23 used for SDSP. In the schematic editor I'm having 48kHz (default) as the sample rate. When setting the filters transfer functi
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Conformal coating on ADAU1787
Can conformal coating be applied on the codec ADAU1787 without any compromise on its operation? hardware ADAU1787 Integrated/Special Purpose A/D Converters Audio CODECs
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ADAU1787 Vs ADAU1797A vs ADAU1467
Hello Team, Kindly answer below points. Which help me to decision making in part selection. Application: Primary path: I2S, Secondary path: 4 Analog Microphones(2 Feedback and 2 feedforward). to devel
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NLMS ANC Implementation (secondary path estimation)
Hello Everyone, I am starting to experiment with ANCs and I have a board here with the ADAU 1787. I've noticed that it provides only the NLMS block as an adaptive solution, while other series provides
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SigmaDSP running 32kHz - no interface support
Hi, I want to run the SigmaDSP in 32kHz sample rate as I'm running out of MIPS. 24kHz samplerate is too low signal bandwidth. Is that posible? I can select it in the SigmaStudio, but I can't select it
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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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Multible compressor curves - saving MIPS
Hi I need a compressor with gain output. The user shall be able to select between several different compression curves - and I'm running low on MIPS so I can't just run several of them in parallel. Wo
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Design support for AGC funtion
Hi, I'm looking for an AGC function in the SigmaDSP part for leveling an input signal within a certain range, coming from an unknown voice source (various types of radios). It's seems there is not a b
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PROGRAMMING ADAU1787 WITH STM32
Hi iam trying to program my ADAU1787-eval using STM32L496-EVAL using I2C.My control register values are getting updated in the memory of ADAU1787 when i try to program but my sigmaDSP and fastDSP RAM
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ADAU1787 expanding design to support microphone and another digital input
Hi, I'm using ADAU1787 on our custom board. It is connected to: SPT1 - MCU input. MCU is defined as slave SPT0 - Input from Modem , Output to modem. Modem is Master (is this possible to configure?) AI
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Can the phase-locked loop of the ADAU1787 operate at 98.304 MHz? Can the speed of BCLK reach up to 49.152 MHz at its maximum?
Hi! When I was using the ADAU1787, I employed the TDM mode of I2S and found that the maximum speed of BCLK was 24.576 MHz, and the sampling rate for 16 channels was 192K. However, my application scena
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adau1787 Control volume with external switch
Hello, I previously used the eval-adau1761 and had experience controlling the volume with buttons. I switched to the eval-adau1787 development board and am trying to implement the same functionality w
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Regarding the issue of the ADAU1787's power-on startup, the normal power supply (DVDD) does not output any voltage.
Hello! I made a circuit board that consists of 3 ADAU1787 chips and one MCU.However, I have encountered some problems recently. I have attached my AD project files and a screenshot of the ADAU1787 har
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1 crystal and 1 EEPROM for 2 ADAU 1787
Hello, We would like to connect 2 ADAU 1787 on the same Crystal to obtain the best synchronisation and same EEPROM so during the Boot Both ADAU will be programmed one after the other. 1. Is it possibl
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ADAU1787 serial port latency
Hi All, A project I'm starting on soon ideally would have lower noise and distortion figures than what the on board ADC's and DAC's of the ADAU1787 can do. Is the latency through the serial ports and
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The issue of the PLL startup sequence of ADAU1787
Hi！ I am developing the ADAU1787 and hope to use it as an IIS receiving device. External signals are input to it as MCLK or BCLK, and an internal clock is generated through the PLL for operation. Howe
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There are serious bugs when generating the MCU configuration file for ADAU1787 using Sigma Studio 4.7.There are serious bugs when generating the MCU configuration file for ADAU1787 using Sigma Studio 4.7.
Hello! I discovered a serious bug. When using Sigma Studio to generate the configuration file for ADAU1787 (the configuration is quite simple; it's just a DAC output serving as the signal source. I ha
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ADAU1787 - Question Regarding SafeLoad Usage with Fixed IIR Coefficients - Active Noise Control
Hello, I am using the EVAL-ADAU1787Z for an Active Noise Control application. I only need two inputs and one output, and I’m using an IIR filter ("Hp") with two gains, and the resulting signals are th
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SigmaDSP (SDSP) to the FastDSP (FDSP)
I recently purchased the EVAL-ADAU1787Z evaluation board and have been working with SigmaStudio 4.7. Despite following the documentation and building a correct signal path from the SigmaDSP (SDSP) to
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adau1787 48KHz And 16KHz
Hi All In my project I have two sources working at different frequencies. The first one works at 48khz and the second one works at 16khz. Both are mainto the adau1787 which is subordinate. The type is
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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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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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Latency
Hello, The aim of my project is to implement an ANC system for noise cancellation in ducts below 300Hz, so the reference and error microphones can be placed at big distances (1m for example = 3ms dela