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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (24 topics).
24 topics · 121 messages
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Seeking Help with AA-AP23123 Wondom DSP for Home Theater Setup
Hello everyone, I'm reaching out for some guidance on using the AA-AP23123 Wondom DSP, which is an unbalanced 2-In, 4-Out ADAU1701 DSP preamp with a 2-way digital crossover. I’m looking to use it simi
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External button to select internal crossovers.
Hello everyone, I’m new to SigmaStudio and I’m working on programming the ADAU1401 to use an external button to select internal crossovers. I have successfully set up the blocks for external volume co
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Need assistance on debugging a possible issue with merging the input channels and causing clipping
Hi, I'm debugging a strange issue with a crossover based on ADAU1466. I tried various settings in Hardware Configuration but running out of ideas, so appreciate if you can help root cause the issue. I
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1-in / 4-out crossover using Dayton Audio DSPB-K DSP
Seek suggestions on a 1-in / 4-out crossover using just the Dayton Audio DSPB-K board (and not the KE daughter-board). I'm considering a low pass filter for a large woofer, a high pass filter for a tw
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Questions about Programming methods to be used with ADAU1467
I have to select the best components for my new Project that is an audio management system for cabin. It is interesting the ADAU1467. I have seen that it is programmable by means of the use of SigmaSt
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ADAU1452 Q factor value will affect the Crossover result?
Hello guys, I meet one problem which is the "Higher Q factor" affect the crossover output result. Here is mine part of the DSP structure: from the above figure, the 10 bands EQ are before the crossove
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[Bug Report]Sigmastudio Undesired 20kHz high roll off when using the Auto EQ single band.
When using the single channel Auto EQ there is always a high roll off at 20kHz. Attached an example of a reverse "loudness" curve that is imported in order to create a loudness curve. The filter numbe
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How can I make an ADAU1701 crossover filter with dynamic uC control of frequency and filter type (BW12, BW18, BW24, BW66, BW48 and LR12, LR16, LR24, LR36 and LR48) but using the few instructions as possible?
Hi. I need your help. I’m working on a project where one ADAU1701 is controlled by an 8 bits uC c8051F020 on I2C. Everything is right. But… I’m running almost out of instructions: 978 (out of 1024) an
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Crossover Block 20k Rolloff?
Is the crossover block fixed at 20k? im running at 96KHz so have enough sample rate for 48KHz but when measuring the speaker system the tweeter is rolling off. The red line is the passive crossover an
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multiple stimulus with single probe
I am trying to probe from the merge of 2 different stimulus blocks and looking for some clarification. I click probe labeled 'L Probe', then the Stimulus labeled 'Left Stim' and see the response of ev
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sigma studio crossover block options unable to open
I am running into a problem with Sigma Studio where in my schematic, blocks are intermittently unable to be configured. For example I have 3 inputs, 3 crossover blocks, 3 stimulus, a 3 mixers, 2 split
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Does the "Crossover" algorithm affect over all output time (latency)?
Hello guys, I have one question about the Crossover block, as title, I got this testing on my ADAU1452 EVB as below: From the 1452 spec, I know that if I use none block testing(the testing only has DS
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Need to expand SigmaStudio State C beyond 9999999 bytes
Hello, We are developing a product using SigmaStudio 3.12 for SHARC and the 21489 DSP. We are planning on using an external SD RAM (512MB) for a pooled audio delay. Here is an earlier thread: Running
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How to access to the parameters values?
Hi all, I'm still in a stuck mode, trying to understanding the DSP world. I own a 21489 demo board. By the Sigma Studio I drawn a schematic and by the CrossCore ES I'm writing C code to control some i
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Fourier transforms, cross-correlation, in SigmaStudio?
We are looking to implement some signal processing on a DSP and are considering the ADAU1701 with SigmaStudio. I've been playing around with SigmaStudio trying to replicate the functions that we are c
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Link blocks of two DSPs in SigmaStudio - ADAU1446
Hello, Is there a possibility to link some blocks (crossover, volume controls, ect...) of two separate DSPs (ADAU1446, different I2C addresses) together in SigmaStudio? I have the following setup for
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MATLAB FIR filter coefficients to Sigmastudio
Hello. I am more or less completely new to the DAU1701 evaluation board so please be patient with me for asking this potentially silly question, but searching this site didn't give me any result. Well
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ADAU1701 Crossover and Switch compiler error
If anyone can be of some help on this. Attached is a stripped down portion of the schematic for a project which implements 2 stereo crossovers. The crossovers are than fed to a Clickless SW Slew MUX t
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Wave Sources + Value Cross + Pulse Count... What's the Freq?
Hello, In the attached project something is happening that I cannot understand... Why counter is growing by 1 unit approximately every 8 seconds? I expected it to grow by 2 units every second, since t
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How to calculate the coefficient value of the high order filter
Hi at first i should describ our design for you ,we want to design a system and the block crossover is used as the high order LP filter, Our DSP prossesor is controled by extern microcontrolor ,So the
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Sigma Prosessor
I meet difficulty about Sigma Studio,The Prossesor is ADAU1446 and the block Crossovre is used in our design,The question is when we select Butterworth 12 there are 20 Byte data,but when we select But
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Xfade
ADAU1446 Sample rate 192kHz When fed directly a DC 0 or 1 it will do as expected. Now +1 works differently than +2 but that is (I think) a different question entirely. Anyhow, with any Slew rate (I us
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SigmaDSP crossover bessel filter -3dB point error?
Hi, how can i design the crossover in one channel? that's to say series the HPF&LPF in one channel, in order to realize the bandpass. i have a try using the 3-way crossover(only using the Mid-way for
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How can I implement a Linkwitz-Riley filter?
I want to use a 4th-order Linkwitz-Riley filter as a crossover in my system, but I don't see it available in the SigmaStudio library. How can I build this? riley linkwitz filters sigmastudio crossover