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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (22 topics).
22 topics · 94 messages
Filtered by: ADAU144X ✕
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EVAL-ADAU144XEBZ problem with Sigma Studio - no audio or clocks with example signal flow
I am trying to get the basic test configuration outlined in the "user guide ADAU1442 eval board UG-032.pdf" working. I follow all the instructions on pages 5-9, culminating in the step below, but I ge
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Accessing SPDIF/I2S raw data
I'm using a ADAU144x eval board to convert an SPDIF input to an I2S output. The SPDIF input is a proprietary format with 3 data channels, each with left and right subframes. The data in each subframe
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adau1446 input / output continuity
Hi, I have TDM2 16bit I2S selected on input 4 TD8 16bit I2S selected for output 4 on the adau1446. I'm switching clock domain 4 SD pin from input to output mode and switching the input/output on/off d
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adau144x SD input output question
Hi, I'm using ADAU1446 with ARM Dev board and TDM recording and playback is working. Unfortunately the Dev board only supports one SD TDM pin on its Serial Audio Interface although I can configure it
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EVAL-ADAU144xEBZ evaluation boards connected together
Hi I´m working with SigmaStudio with two EVAL-ADAU144xEBZ evaluation boards connected together. The project that I’m working with is using 15 microphones as input, one evaluation board is master and o
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"Comms Failed" Error on Eval ADAU1442EBZ Rev. C
Hi I’m having a problem connecting to a brand new evaluation board Eval ADAU144XEBZ Rev. C I have a Win7 with Sigma Studio v 3.14 build 2 rev 1690, USB interface EVAL-ADUSB2EBZ connected to USB 2.0 –
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ADAU144x MP pin initialization glitch
Greetings! I've been observing the MP pins of the ADAU1445. It seems that no matter what mode they're set to (in a program stored to EEPROM for self-boot), they always pull high for ~100ms when the de
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ADAU1442 ASRC Implementation
Hello Everybody! My proposed design involves an ASRC in which the Sigma DSP accepts S/PDIF input signals at different sampling rates and output as a S/PDIF signal as well. Say for example, incoming si
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CRC on 1446
Hello, i've read that were some issues with the CRC generator on ADAU1442/6, https://ez.analog.com/message/10660#10660 I've read also the solution proposed by Brett, which consists in clearing the rem
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Getting close to 100%mips with ADAU1442
Hi, I found the thread "https://ez.analog.com/message/38550#38550" and this say if mips will reach to 99% or more, audioable noise, glich will be heard. Is there a guidline to ensure proper signal pro
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ASRC output rate setting for the ADAU145x ADAU145x
Hi, According to the data sheet for both ADAU145x, ADAU144x, there are register to set ASRC output rate and are selection like "DSP RATE" or "DSP Core Audio Sampling Rate" "Internal FS" What is the di
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ADAU1445 safeload readback fails
Hello to all, i searched all your threads about my problem but find nothing to my failure. In my system i used a adau1445 for audio signals. I load the coefficients for the biquad filters with the saf
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SigmaStudio ADAU144x Register Control Columns Compressed
There seems to be a bug in SigmaStudio 3.8 that makes many of the column widths in ADAU144x Register Control, too narrow to hold their text. This makes it very difficult to configure the chip, since y
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Distortion with ASRC input on ADAU1445
I am experiencing noticeable distortion when using an synchronous input on the 1445. I used a logic analyzer to capture the samples going to the 1445 and verified that they are pure (I'm using a canne
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Clarification on serial I/O in ADAU144x
I'm trying to verify my understanding that for ports which have both an input pin & output pin (SDATA_IN[3-8]/SDATA_OUT[3-8]), both the input AND output can be used simultaneously. E.g. I can use both
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Issue with generated header files in 3.5
I'm having an issue with inconsistent usage of the '_IC_1' suffix on definintions in my project header file in the released 3.5 (this is with windows 7, x64 compiling for an ADAU1446). Here are two ex
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Question about the default_download macro (for ADAU144x)
I noticed that in the generated default_download macro that the setting up of the master clock (writing 0x01FF to address 0xE280) is the 18th write operation, however in the datasheet for the ADAU144x
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Microphone Ducking music
Hello, Is there a preferred Dynamics Processor block to use when ducking inputs triggered from a microphone source? I am trying to set up a scenario where a paging microphone lowers all the other inpu
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Audio input lost!
Using ADAU144x development board. Numerous edits and additons all resulting in successful compile, link and downloads. After an edit with successful link, compile and download, there is no audio in. L
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ADAU144XEBZ development board
I am on the list to get an I/O boad. While waiting, I would like to use the GPIO pins (MP0-11) Is there something special I need to do beyond setting the information in the DSP Register Mode 1 screen?
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Question about SigmaStudio (Save internal data)
Hello! I've used SigmaStudio(ver. 3.1) and EVAL-ADAU144XEBZ DSP board. I have to save the internal value to file (text or etc.). e.g. Analog input date, processing data output, and some value. I find
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ADAU1446 Serial INPUT/OUTPUT ports run mode
Hi, May the INPUT/OUTPUT ports work in master mode at the same time? If all work in master mode, the CLOCKs source is the same "MASTER CLOCKs"? or the input/output master source is not same(synchronou