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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (56 topics).
56 topics · 243 messages
Filtered by: #sample ✕
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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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Audio Delay versus Sample Rate
When operating the ADAU 1701 with double to fourfold sample rate the audio delay (analoge input to analog output) is not 1/2 or 1/4 compared to 48 kSps as expected. I measure 1/3 and 1/9 compared to 4
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Change sample rate to 192 kHz
Hello, i am a mechatronics student and have a problem with the developer board EVAL-ADAU1467Z. The board is set to a sample rate of 48 kHz at the factory. I would like to set the developer board to a
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How to set sample rate in SS+ like done in 4.7?
I'm sure I've missed something obvious, but a search of the Wiki/docs (with "sample rate"@resources:tools-software:sigmastudiov2) did not turn up anything. Where has this from 4.7: gone in SS+? I have
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ADAU1701 ,sampling rate in complier and SR0,SR1 relation to i2s streaming rate
Anyone can explain ,What happen with my system? or i doing wrong? My experiment is have 2 streaming I2S 96Ks and 44.1 ks with my adau1701 slave mode that mean MKCI is 24.576 Mhz and 12.288 Mhz. my ada
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Syncing output to input using ASRC
I’m using the ADAU1466 running at a 48 kHz sampling rate for a project. I have a digital input that will accept either 44.1 or 48 kHz sampling rate, going through an ASRC at input to sync it to the DS
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Serial interface clocking configuration help needed
I am looking for assistance on setting up the clocking of the output serial interface of ADAU1466. I'm using 24.576 MHz master clock fed to both ADAU1466 and 3pcs PCM1795 (connected to DSP via I2S int
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Decimation - Output sampling rate
Hi, I have adau1452 sigmaDSP on an A2B chain and this dsp streams data to the host (SC589-SAM). The adau1452 receive samples from an accelerometer and is programmed with a decimation block via sigma s
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Multi-Tap Voltage Controlled Delay Maximum number of samples compiler error
Hello team, I have a simple project (attached test project) in which I have 8 channels with 8 delays of the type "Multi-Tap Voltage Controlled Delay". To make the most of the available memory I have 3
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Bug in 'New Item Sampling Rate"
Here are steps to reproduce the problem: 1. Create SigmaStudio dspproj as described in the ADAU1787Z Evaluation Board User Guide. See attachment. Note the 'New Item Sampling Rate" is 48 kHz. and confi
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How to set EVAL-ADAU1466Z EVAL BOARD sample rate to 192Khz?
I have modified EVAL-ADAU1466Z EVAL BOARD to control AD1938 via Sigma Studio Version 4.6. and set sample rate to 96Khz and got sinewave(40000Kz) succcesfully. When I had changed to 192Khz it did not w
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ADAU1787 SigmaStudio stream and record data
Hi! I work on the ADAU1787 EVAL board. I downloaded a sigma studio schematic which contain inputs, outputs and filters. I want to stream samples I have generated from matlab into the processor and rec
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ADAU145x datasheet ASRC group delay calculation
On page 81 of Rev.D of the ADAU145c datasheet there are calculations for the ASRC group delay : The same equations appear in the AD1895 datasheet, so surely they must be correct. In the first equation
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Different sample rates
Hi, When I use SigmaStudio, I am always confusing about different sample rates in hardware and software configuration. Could you please help me figure out them? Such as: 1. Software fs, 2. Hardware co
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Reversing signal in ADAU1452?
Hi guys, Is there any way to reverse an audio signal in sigma studio? I am thinking about a system that receives input, stores a number of samples (I'm thinking around 15000 samples in a 48 kHz projec
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UpSampling algorithm version 1.02 broken
I have just tried the latest version (1.02) of the Upsampling algorithm with SigmaStudio 4.6 and an ADAU1452. I am running at 96kHz sample rate and downsampling 16x, then Upsampling, with no filtering
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Sigma studio for ultrasonic application
Hello ! :) Im a student in engineering, my project is to develop a directive speaker based on a ultrasonic piezo array. The audio signal should be modulated with a sine carrier (AM, DSB). The carrier
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ADAU1452 sampling frequency
Hi, I use an ADAU1452 to EQ a few subwoofers, and noticed the filters were not working properly (ie. PEQ was not affecting the signal in any way!) I realized I was setting the sample rate only in samp
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ADAU1452 - Working at fixed sample rate
Hi, I'm using custom ADAU1452 board only for S/PDIF audio processing. In SigmaStudio, "START PULSE" is set to "S/PDIF receiver rate". ASRC0 output rate is set to "Use DSP core START_PULSE rate". For t
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[ADAU145x] Downsampling to arbitrary value
Hello folks, I'm trying to downsample a signal to a sampling rate of 10Hz on an ADAU1452. The main sampling rate is 48000Hz. My problem is that the downsampling block doesn't allows a downsampling rat
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Upsampling / Downsampling bug?
Hi, So I was trying to troubleshoot a project, and stripped it down to complete barebones to determine the issue. [Using an EVAL-ADAU1467Z Rev B board] Starting a completely new project & dragging in
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1787: Choosing 768 kHz in SS results in compile error.
I am trying to change the sample rate so the FDSP runs at 768 kHz. I have changed the DAC_FS and ADC01_FS registers to 768 kHz, however when I change this setting in SS and 'link-compile-download', I
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Distortion using sample rate fs 44.1k
I must have missed something very basic about dsp configuration. Here is my problem: I have set up my eval1467 board as an i2s slave (both bclk and lrclk) on in0. SigmaStudio schematic sample rate is
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Downsample - Extract only odd / even samples
Hello! I have the following problem. I have an 96k input signal that I want to send it through a 48k domain. This means that I need to send two packets of data in 48k domain. In order to do that, I ne
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ADAU1701 Running at 48Khz receive I2S at 44.1Khz, needs external sample rate ic converter?
Hi, Im new on DSPs, so i have a few questions, not a bluetooth one. About Hardware: 1) I want BT audio input at 44.1Khz on ADAU1701 I2S Input and at Outputs 48Khz, i will need an IC sample converter?