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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (22 topics).
22 topics · 110 messages
Filtered by: #limiter ✕
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Trying to understand Limiters and Sound Volumes
I am using Bluetooth (Wondom BRB3v3 Bluetooth Receiver) as input, which goes to DSP (Dayton Audio DSP ADAU1701), which goes to input of AMP (Wondom 2x100W Amplifier Board), which powers component spea
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Microphone -20 dB stop
Hello, I'm looking for a block that doesn't allow a sound of -20db to pass through until it reaches -22db. I need it for a microphone because I use it for announcements and you can always hear the cli
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Signal peak limiter related to RMS level
Hi ADI Experts team, I need to know what blocks should be used to get the signal peaks limited by multiples of RMS signal. As example, using a factor related to RMS value to define the maximum peak va
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Limiter
Hello. I'm trying to make a limiter. When it reaches the limit, I want to light the external led. When I use the limiter, the limiter does not work. I don't understand the calculations on the site eit
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Compiler Error
Hello. I am using Adau1701. I keep getting the following error when I add some blocks. For example, I'm using a limiter. I am doing it according to the rule as follows. What is the problem? I can't pr
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Limiter shows weird behaviour after Reset in ADAU1452
Hi, i am using a limiter in an ADAU1452 hardware project. After every reset of the adau1452 and loading of the dsp programm and parameter the limiter starts with <-70dB gain and then slowly over sever
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ADAU1701 and TI digital AMP rattling noise with LP-filtered signal
Hey folks, I´ve already done a project with the ADAU1452 and wanted to realize a small 4In4 DSP amplifer. Therefore I´ve moved to the ADAU1701 and a digital TDM input amp from TI TAS6424.
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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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ADAU701 Programming in SigmaStudio question
Hello! I am very new into this and I hope this sort of questions can be asked here... I will try to keep this as short as possible. I have a 2.0 Class D Amp with ADAU701 for DSP. I try to build a port
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Implementation of N-Channel Peak Compressor for ADAU1452 & Sigma Studio 4.2
Does this module process each channel individually? Or is processing applied to all channels when any one channel exceeds threshold? Edit Notes Wording. [edited by: sgoldburg at 11:46 PM (GMT -4) on 2
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Problem using limiter in Sigma Studio after an FIR filter, as the Limiter gets frequency depenent.
Hi, I am having problems with a limiter if I use it after an FIR filter, as the limiter gets heavily frequency dependent. the maximum output level changes wildly with frequency despite being the last
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Limiter indicator led
Hi, I am looking for a very low instruction usage setup which can switch on a led when the treshold of a limiter is reached. I have this setup: But the signal detection block, stays on too long as the
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N-Channel Compressor Ext. Detect question
Hello guys, I have one project to use multi-channel signal and I need a limiter to limit the signal, now the 4-channel signal input to the N-Channel compressor like the below picture: my question is a
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I have a Question about detail Limiter control
Hi everybody My name is Park Cheong Su I have a Question about detail Limiter control this is My Question List 1. How to get Release Time Control formula in Limiter? 2. How to get Attack Time Control
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I have a Question about Peak Room in Limiter
Hello everybody~! I have a Question about Peak Room in Limiter ADAU1452 Limiter is have peak Room? if Limiter is have peak Room What is peak Room value in Limiter? help me... Please..... [My test resu
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I have a Question about Limiter Release Time in Sigma Studio
Hi everyone, I use a board with ADAU1452 dsp. I wants to control the Attack Time and Release Time in Limiter. but I don't know How to get Attack Time and Release Time . Can you answer my question? Ple
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I have a question about Limiter ratio in Sigma Studio
1. What is Limiter ratio value ?? 2. What is caculation formula about Limiter ratio?? 3. What is RMSavg ?? Plese somebady Help me!! sigma studio limiter limiter ratio
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SigmaStudio Limiter
Hi everyone, I use a board with ADAU1701 dsp. I plan for a new application using a Limiter. I setup a Limiter in a very basic project in SigmaStudio. I must be doing something very wrong as it will no
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[ADAU1446] Software safeload/compressor limiter
Dear Guru's, Currently I'm using biquads in my design which are dynamically adjustable using the microcontroller, which is connected to the dsp using an SPI. As the adjustments taking place with speak
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Bug in Peak/RMS limiter
The Peak/RMS limiter in ADAU1702 is supposed to have a Peak Hold, according to the documentation, but it does not: Does the RMSTC field do the same thing as a peak hold? It can be changed between ms a
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Why does the limiter stop at +6 dB?
Using compressors to avoid output clipping says "I would suggest using a full-range (-90 dB to +24 dB) RMS compressor", but the compressors don't go to +24 dB, they only go to +6 dB: Used this way, it
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Some problem about the block of Limiter
Now we are designeding a system ,The block Limiter is used as a Compressor,There is a parameter Decay(db/s),We don't known the functon of the parameter,so i want to get help from here,thanks very much