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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (68 topics).
68 topics · 383 messages
Filtered by: #adau1445 ✕
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Export system Files .h SIGMA_WRITE_DELAY erroroneus call
I dont know if this is a bug Sigmastudio+ 3.3.0 wen i export system files , the .h generated, calls this function on SigmastudioFW.h, with four arguments SIGMA_WRITE_DELAY(DEVICE_ADDR_ADAU145XSCHEMATI
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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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Simple example of ADAU1445 application to control analog input.
Hello Analog team, can you present simple application for ADAU1445, where we can connect external uC (like ESP) to control it? The most critical options we need: - input volume gain/attenuate (from mu
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Upgrade from ADAU1701 to 6 or 7 stereo I2S inputs
I need to connect the DSP to a raspberry PI and the PI can only do I2S (in and out) at 48k and no TDM There are also 2 TI TLV320ADC6140 ADC's both capable of I2S and TDM And we run out of instructions
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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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How to load different end-user presets on a adau1701 without MCU
Hi, I'm using a ADAU1401/1701 DSP for some of our projects, but I want to be able to load completely different sigma studio project files, preferably with a dip switch, or with a single button that ro
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Which approach to take to implement a 64-channel ASRC?
I need to implement a 64-channel ASRC (actually, two of them, because my application is bi-directional). I was looking at using a total of eight ADAU1445 units glued together with some FPGA logic, but
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ADAU1445 FIR filter MIPS calculation
Hi, We are using the ADAU1445 for FIR processing. Recently we have updated Sigma Studio (now using 3.11 Build 2, Rev. 1396) and noticed the following entry in the compiler output: Obsolete algorithm c
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ADAU1445 one output channel missing
Hi, I've enclosed my project for somebody who can take a look and maybe help me:) The problem is that I cannot get signal on output channel no 0,2,4,6. When I put a level indicator on one of this chan
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Compressor control in microprosessor
Hi I want to control Compressor in MCU But, How to calculate value(136 Byte)? This DSP is ADAU1445. Sigmastudio3.11 Please Help me.... Audio Signal Processors compressor mcu adau1445 SigmaDSP Audio Pr
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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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Noise that sometimes disappears on power off/on cycle
Hello, I'm getting some 40dB excess noise (hiss) on my ADAU1445 board which when turned off and on again several times, often disappears. With the USBi connected, much the same thing happens with hitt
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Concerned about crystal/clock swing level/ ADC noise issue.
Hello, I'm slightly concerned that the amplitude of my clock signal is too great. Attachment 'PIN41_27PF' shows the signal at pin 41 of my ADAU1446 (after the 100R resistor), measured using an inch lo
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ADAU1445 channel invertion
Hi, I've build a program in Sigma Studio for ADAU1445 with simple input some standard volume sliders, one mux and delay blocks before output. And comparing first 4 output (left channel) to second 4 ou
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Fractional / Integer Data Type conversion
Greetings! I'm working in an ADAU1445 Sigma DSP. My application generates a boolean logic signal in 8.24 ('fractional') format, and I'd like to use that signal to drive an index-selectable MUX, which
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32 Bit Audio with ADAU1442
Hi there, I have a modular system with an ADAU1442 as signal processor. I would like to use an ADC and a DAC with a bit depth of 32 Bit. I know that the processor con process 24-, 20- and 16 Bit Data,
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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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ADAU1445 ASRC help needed
Dear All, Please guide me in configuring parameter in sigma studio for routing "SDATA_IN5" thro' ASRC for ADAU1445 based project. Regards Ankur
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Are there logic operators available for the GPIO inputs of the ADAU1445?
Hi, We use the ADAU1445 audio processor for intercom - and audio purposes in a video camera system. At startup of the system we load the processor software via the I2C connection. For test purposes in
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AD1939 in selfboot system
Hi! I have a SW/HW question about programming the AD1939 CODEC in a Selfboot ADAU1446 DSP-System. My board works well with the ADAU1446 in I2C Mode, with selfboot from EEPROM (I2C) and with the AD1939
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My DSP/DAC Project
Hey guys... My first post on here and possibly quite in over my head here, but want to do something crazy. I want to build a DSP / DAC combo based on TWO ADAU1445 and 2 ADAU1966. The processors will b
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ADAU1445 - Some projects don't work when uploaded from MCU (but work with USBi)
So here is the situation: I've used the 144x series a few times and haven't had a problem like this show up until now. My setup: 1445 being controlled via a PIC32 over SPI. I have some jumpers on the
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About CLKIN wave form for ADAU1442 and ADAU1452
Dear support team, We want to know specification of CLKIN for ADAU1442 and ADAU1452. We will use 12.288MHz clock source for CLKIN.(not crystal) Q1: Is Input level of CLKIN same as digital input specif
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what happens if I exceed the maximum f(core)?
I'm working with an ADAU1445, and it looks like I accidentally set PLL[2..0] = 0, for 64x f(core), but applied 12.288MHz, which should be 256x. So the core might try to run way pass max. I corrected i
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ADAU1445 I2C problems
I'm wondering if anyone else has this problem... I have an ADAU1445, and it's getting it's MCLK externally (12.288MHz). Power supplies are all OK. I'm writing to the I2C port. First I initialize it th