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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (2426 topics).
2426 topics · 11644 messages
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External SPI RAM
Hi I am currently looking to build a 4 tap delay with up to 5 seconds of delay. Each tap will have individual filtering and different modulation options. I see that the ADAU1452 has an external RAM bl
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ADAU1462 data memory size
Hello, According to the datasheet for the ADAU1462, the data memory size is 48kWords. However, according to the compiler output window in Sigma Studio 3.17: ADAU1452 - DM0: 20480, DM1:20480, PM: 8192
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ADAU1462-150 PLL and other settings
Hi, I was starting implementation for the ADAU1462-150 and came accross some points that are unclear for me. 1) The datasheet shows in Table 20 on page 29 the predivider and feedback divider settings.
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ADAU146x SRC Latency
Hello, I've got an ADAU1462 project that takes i2s in, sends through ASRC to internal sample rate of 96kHz. When measuring the end-to-end latency of the system with fs_in = 48kHz, I get 1.521ms, and w
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ADAU14: Capturing pulse shorter than a frame?
Using ADAU1462 will it be possible to capture pulses shorter than an audio frame? E.g. can in inputs be set as rising edge triggered so it remembers the state even though the signal is no longer high
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Packing 8 16bit channels into one serial port
Hello! I'm designing V2 of my digital mixer, which uses an ADAU1466, ADCs, DACs, and an ESP32-S3 for the web interface. So far so good. V1 is working great, but for V2 I'd like to add multitrack recor
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Does SigmaDSP perform SCLK stretching for timing sync with USBi?
After some reliability issues with SigmaStudio ReadBack (both EVAL and custom hardware, alike), I am looking at the USBi bus in SPI mode with a logic analyzer, and it appears that the SigmaDSP might b
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3rd party / licensed algorithms like SRS TruBass
previouly i find that 3rd party like SRS ( now is apart of DTS ) or BBE have port some algorithm of them to SigmaStudio but seem like i cant contact SRS for Trubass trial license right now,so any idea
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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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Using S/PDIF Auxiliary Output Mode
Hi, I am trying to use the S/PDIF Auxiliary Output Mode for a slightly unusual result. Basically I am trying to bypass the use of an ASRC... A customer has asked if our product can accept AES3 input W
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TDM8 Connection on ADAU1467 Rev.B Evaluation Board (Brooklyn 3 + AK5578 Configuration)
I am currently evaluating an ADAU1467 Evaluation Board Rev.B and am having trouble getting the TDM connection to work correctly. If anyone has used a similar configuration or is aware of any important
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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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left and right balance issues
Dear members, i want to know adau1401 how to created the left/right channel balance as pan function as below graphs, i tried below schematic, but no used, or we can use the volume table to find the lo
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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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Issue with Compilation Optimization Option in Sigma Studio 4.7
Dear Support Team, I encountered an issue with the compilation optimization option in Sigma Studio 4.7 and would like to seek your advice. Here is the situation: I am using a simple example (the proje
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Less Inst(cycles) in SS+ than in SS
My question is related to these two threads: - ez.analog.com/.../how-to-set-sample-rate-in-ss-like-done-in-4-7 - ez.analog.com/.../setting-sample-rate Preambule: I migrated a project from SSv4.7 to SS
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Compile numbers
I have a somewhat large program, and wanted to see if this complier message should cause any concern. The program compiled without error, and most specs on RAM and INST RAM seem comfortably under limi
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Unconventional application of the ADAU1452 audio processor
I used an audio processor in a non-standard way for a metal detector. I want to be able to select a project (program) that will be loaded into the ADAU1452 from EEPROM by pressing buttons connected to
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Creating a New Project from an Existing One using SAVE AS
I have an existing project in its own dedicated folder. I want to change some of the configuration and save as a new project to a new folder dedicated for it. When I do a save as to the new location i
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Active Noise Cancelling
Hello I am trying to build a ANC System for HVAC Installations with the ADAU 1467. I rebuilt the secondary path using the FXLMS but somehow the System is not stable. I tried to implement a feedforward
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SPDIF TX configuration and timing problems between chained devices
Hi Team, I have a custom made DSP board for a loudspeaker based on the ADAU1466 and currently having a problem with my S/PDIF signal chain. I run an ADC (@96khz) on SIDN1 through a ASRC2 into the DSP
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Request for Review of ADAU1451 DSP Audio Architecture
Dear Analog Devices Support Team, I would like to ask for your support in reviewing the audio architecture of our system using the ADAU1451 DSP. System overview Host processor: Rockchip CM3588 DSP: AD
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Where is dither?
The Data Sheet section on Hardware Accelerators says "The core includes accelerators like division, square root, barrel shifters, Base 2 logarithm, Base 2 exponential, slew, and a pseudorandom number