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SigmaDSP & SigmaStudio EricWang Mar 26, 2024 00:00 6 replies Original on forum ↗
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EricWang Question
Mar 26, 2024 00:00

A delay of 500ms is required, divided into DM0 and DM1 blocks, but the total is still not more than 20480. But SigmaStudio software is OK.

Audio Signal Processors

adau1452

Audio Products

software

SigmaDSP Audio Processors

Delay component bug

SigmaStudio+ Delay

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pastedimage1711444247691v1.png
DaveThib Reply
Mar 26, 2024 00:00

Hello Eric,

Can you explain a little more?

Let me see if I can sum this up?

You want 500ms of delay total?

I assume the sampling rate is 48kHz so therefore you will need 24,000 samples correct?

So you want something like 12,000 in DM0 and 12,000 in DM1?

Have you looked at the compiler output window to see the usage and the amount of available parameter RAM?

Which revision of SigmaStudio+ are you using?

Can you include your program as well to demonstrate the issue?

Thanks,

Dave T

EricWang Reply
Mar 28, 2024 00:00

Hi Dave,

SigmaStudio+2.1&2.2 same problem.

As shown in the following figure, the DM0/DM1 RAM occupancy displayed by the compiled output serial port is inconsistent with the design

Thanks,

Eric

pastedimage1711653424271v1.png
pastedimage1711653424271v1.png
DaveThib Reply
Mar 29, 2024 00:00

Can you include your program as well to demonstrate the issue?

I took the time to recreate your test and came up with different results.

Dave T

pastedimage1711733991765v1.png
pastedimage1711733991765v1.png
EricWang Reply
Mar 31, 2024 00:00

D:\2024\DSP\ADAU1452DEMO\ADAU1452DEMO.zip

However, the total delay of DM0 and DM1 still cannot exceed 24000samples(500ms)

DaveThib Reply
Apr 1, 2024 00:00

Hello Eric,

It does not seem to be the actual file attached, only the name and path. Did you drag the file into the reply window? That usually works.

Dave T

EricWang Reply
Apr 7, 2024 00:00

Sorry, the attachment is attached this time

ADAU1452DEMO.zip