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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (576 topics).
576 topics · 2586 messages
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ADAU1978 configuration
Hello everyone, I'm a little confused with some of the ADAU1978 settings: 1) what is the MCLK frequency range? The timing specification offers only the table with specific MCLK values that can be used
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ADAU1962A Pop-up noise after Power-ON
Dear Team, Initially pop-up noise is observed at ADAU1962A DAC output after enabling Master Power-Up bit of PLL_CLK_CTRL0 register. Please find the attachment for ADAU1962A configuration code. Could y
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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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Current Maturity of Custom C/C++ Development on HiFi 3z Core?
Dear Team, We are evaluating the ADAU1797A for a hearable/audio application and need to implement a custom feature extraction algorithm (statistical/spectral analysis of the incoming audio stream) dir
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ad1938+adau1452 noise
Dear ADI staff: I designed a DSP board using AUAU1452 and AD1938, and controlled it using STM32F103RCT6 with a sampling frequency of 48K, using hardware mode, During testing, it was found that AD1938
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AD1938+1ADU1452 NOISE
Dear ADI staff: I designed a DSP board using AUAU1452 and AD1938, and controlled it using STM32F103RCT6 with a sampling frequency of 48K, using hardware mode, During testing, it was found that AD1938
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ADAU1452 + AD1938 Setting I/O problem
Hello, I bought a two-board set consisting of an ADAU1452 DSP and an AD1938 codec. I managed to get it up and running using a modified '192i2s.dspproj' test file. The sound quality is excellent. In my
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[ADAU1452] Internal PU/PD States During and After Reset
Hi, We have a question regarding the status of the internal pull-up/pull-down (PU/PD) resistors during and after reset for the ADAU1452. Upon checking the ADAU1452 datasheet, we found a reference to i
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I2S vs TDM requirement for ADAU7118 with 6 digital microphones on RK3588
Dear ADI team, I would like to ask for clarification regarding the audio interface selection for the following architecture: Processor: Rockchip RK3588 (CM3588) Audio codec / DSP: ADAU7118ACPZRL Micro
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External EEPROM configuration
Another challenge in digging through available documentation. I read the doc on controlling using an external EEPROM. I have an AT24256 chip on a board with the A0-2 select pins. The write up says the
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AEC rating?
Datasheet doesn't indicate an AEC rating. Is it AEC-Q100? adau1401a Audio Signal Processors Datasheet/Specs SigmaDSP Audio Processors
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AEC Block
Hello, I have a project build for ADAU1467 in which I use the AEC block for testing. I would like to know if there is a cheaper DSP that could use that block in which I can also add other blocks like
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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 NLMS filter
How do I use Nlms filter? Could you provide an example? I want to perform ANC on a microphone. hardware Integrated/Special Purpose A/D Converters Audio CODECs
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Inquiry regarding High-Performance ANC Solution for Headphone
To the Analog Devices Technical Support Team, Hello, I am the Lead Product Strategist at a tech startup based in South Korea. We are currently developing a premium wireless headphone targeting mass pr
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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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ADAU1467 Vs ADAU1787 Vs ADAU1797A
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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ADAU1467eval board DAC stage volume attenuation
hi all, i've got an ADAU1467eval board, I've done a couple of apps for it, mainly to drive fullranges, mids and sub speaker thru with a multichannel power amp fed with crossed over and equalized signa
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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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PLL lock issue on ADAU1777
Hello, I have a problem with the ADAU1777 DSP mounted on a PCB. I am unable to write to certain registers, namely DAC0 mute and DAC0 enabled. I have seen that this is because the DSP's internal PLL mu
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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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Parametre generator for ADAU1761 Peaking filter
Hello EZ - i am currently writing a C driver for several future products and i have reached a challenge i need help with: Assignment: The hardware guys have made an implementation that uses these filt