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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (196 topics).
196 topics · 962 messages
Filtered by: #adau1442 ✕
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Runtime Delay Adjustment Causing Unexpected Glitch in SigmaStudio 4.5
I'm using multiple simple Delay blocks to offset separate data flows in a SigmaStudio 4.5 project. ___________________________________________ Example Setup: SourceA --> DelayA --> SourceA_delayed Sou
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Using RMS compressor with peak detection sidechain.
I'm running low on instructions and would like to have the option of peak and RMS compression. I'm thinking I could use an RMS compressor with an optional peak detector on the external detect pin and
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Changing Q of State Variable also changes frequency.
Hi, I've started to use the State Variable (Q/F input) block and I'm observing that changing the Q also changes the frequency, please see pictures below that show this. Change Q to 10: Increasing the
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General 2nd order EQ, no output, possible instability
homeCinema_v4_EQ_test4_kteq.dspproj Fullscreen FL_sigmadsp.txt Download 0.999608536682770 -1.997355600291492 0.998027213657203 -1.997355600291492 0.997635750339973 0.999652539507289 -1.998533998473304
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Adau1467 expand I/O ADC and DAC
Dear sir/madam, As I am working with the Adau1467, I'm running out of ADC and DAC pins. For this application I would like to use at least 6 microphones, 1 audio input and 14 DAC outputs. I could use t
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ADAU1442 Feedback Suppression
Hello, I am new to posting here and also new to audio electronics; so my apologies in advance if my question is naive. I am designing a audio mixer amplifier and I would like to use the ADAU1442 or AD
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ADAU1452 SPDIFIN pin voltage level(s)
Hi, can anyone point me to where there is a specification for the acceptable voltage levels on the SPDIFIN pin of an ADAU1452 DSP device? The only thing I can find in the data-sheet is on page 11 wher
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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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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 16in/16out TDM Audio Matrix
Hello, Is there an easy way of making an audio matrix with ADAU1452? The plan is to route 16 TDM inputs to 16 TDM outputs (with some processing in between) in a flexible way (be able to control routin
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RMS and peak limiters, latency/look ahead
Hi It seems that the RMS limiter does not introduce any signal delay. Is that correct? What window length is used when the RMS value is calculated/how is the RMS value calculated? When adding the limi
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ADAU1442 hardware design
Hello All, We are developing a product where we need to interface 6 I2S ports to the processor. Due to limitations in number of channels on the processor side, We decided to have a dedicated Codec/DSP
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ADAU144x spdif channel status bits. How to set these?
can these status bits be set in the SPDIF transmitter. I am finding that very few off the shelf devices (only test gear can) will receive the spdif generated by the ADAU144x spdif transmitter. Its to
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Modified FxLMS block for ADAU1442 eval board
Good afternoon! I am wondering if it is any way to use the Modified FxLMS block or FxLMS block for the ADA1442 eval board. This board supports only NLMS block, which is not very useful for multi-chann
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ADAU1467 full range external input n-channel compressor gain step size (RMS (no gain) N-Channel RMS Compressor with Ext. Detect)
In our new product we are shifting from adau1442 to adau1467. We are controlling the dsp through an mcu and must therefore fully understand what is what in the register map. There are several good exp
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ADAU 1467/ SigmaStudio4.5 An error on probe unit when using with the parametric filter
Parametric EQ(Filters-Second Order-Double Precision-Multichannel), It has the ability to adjust the frequency response for 15 frequencies on one screen. The Probe unit together with the Parametric EQ
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Echo cancellation with ADAU1442
Is there a way to implement some kind of echo cancellation on an ADAU1442 device? The AEC block is not supported in this device family so I'm wondering if there's a way to emulate it using discrete bl
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ADAU-1442/1445 i2c connection to PIC32
I'm trying to control a DSP on a working audio board, from another board with a PIC32, using I2C. The processor on the board is an ADAU1445. The processor on the schematic is an ADAU1442. I have verif
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Replacing ADAU1442 with ADAU1467
Hi, for a redesign of a system with ADAU1442 and 5 AD1938 i want to replace the ADAU1442 with the ADAU1467. I try to remove the ADAU1442 in the hardware config, there is an error message "The selected
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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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Sigma Studio signal detector hold time is too long
The signal detector block in Sigma Studio has a minimum hold time of 2 seconds. This is way too long for my application. Is there a way to decrease the hold time to around half a second or less? Ideal
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Detecting and processing command sequences in SigmaStudio
I'm using SigmaStudio and an ADAU1442 development board to process an audio input stream with 6 different channels, which I've been able to separate. One of these channels contains volume and mute inf
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ADAU1442 EVM self-boot not working
Hi I have an EVAL-ADAU144XEB board. I use SigmaStudio 4.2 and USBi to communicate with the board and the board works fine, except that I cannot get self-boot working. When I reset the board, nothing h
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[Bug Report] Export file contains addresses of second DSP
Title: Export file contains addresses of second DSP Description: The project contains two DSPs, ADAU1442 (IC1) and ADAU1452 (IC2). After a "Link Compile Download" and Export, the generated parameter X
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ADAU1442 output port corruption with unassociated async input clocks
Hi, we are having an issue noted with ADAU1442 SigmaDSP on a custom PCB that may point to possibility of a silicon bug on the DSP. This project has had >1kpcs made over the past four years and behavio