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Q&A from Analog Devices EngineerZone: SigmaDSP/SigmaStudio and DSP discussions (7 topics).
7 topics · 56 messages
Filtered by: #shift ✕
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Shift incoming I2S data left 7 bits
For reasons that are too long to explain here, the I2S data is arriving (logically) shifted right 7 bits. This is fine because it's really just 16 bits of valid data. Before I can use the data I need
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Problem with Arithmetic shift operator
Dear community, I have a question regarding the arithmetic shift operator. Whenever I shift a bit to the MSB it shows 7F FF FF FF. See the screenshot below. After some research, I understand this is t
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Generating overtones with fixed phases in SigmaDSP processors
Dear colleagues! I would like to share my experience in generating overtones (harmonics) of the sine tone with fixed phase relationships in SigmaDSP processors. For example if we need to generate sine
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IIR cascade FIR, incorrect phase response display
Hello. I'm using chip ADAU 1701, fs=48000. Sorry, I am a newbie in filter designing. I would like to design an IIR Notch filter at 1kHz. I used "ScopeIIR" software to get the IIR coefficients. Then, I
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Sigma Studio IQ modulator/demodulator
I'd like to use the SigmaDSP for IQ demodulator (and in the future for modulator). I'd like to create a 90 degrees phase shift block (AF -> 300-3000Hz). Have you got any idea how can I do this? (My id
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Phase shift on prototype with ADAU1446 and TI PCM3168
A customer contacted me regarding a phase shift seen on a board using the ADAU1446 and a TI PCM3168 codec. I will try to investigate the cause of this and post my results here. Audio Signal Processors
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Filter or source frequency measurement does not match that of SigmaStudio
My tone generator or filter in SigmaStudio is set with a certain center frequency, but when I measure it on the hardware, it differs. What is going on? rate sigmastudio sample frequency SigmaDSP shift