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Sine wave oscillation at 1.6KHz on specific outputs.

SigmaDSP & SigmaStudio zuluzu Jan 3, 2026 00:00 3 replies Original on forum ↗
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zuluzu Question
Jan 3, 2026 00:00

Hello,

I'm facing an issue with my own custom hardware platform and my current SS file.

When I flash everything works okay however audio passes through sounding muffled and there is a constant sine wave oscillation at 1.6KHz on outputs 18 through to 21.

I would attach my SS file however I'm not sure how to do so.

Thanks

Audio Signal Processors

sigma studio

software

adau1467

sigma studio 4.7

SigmaDSP Audio Processors

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EZAutoReply Reply
Jan 3, 2026 00:00

ADI North America will be on winter shutdown starting December 24, 2025; perhaps another community member can assist you until our return on January 5, 2026.

EZAutoReply Reply
Jan 3, 2026 00:00

ADI North America will be on winter shutdown starting December 24, 2024; perhaps another community member can assist you until our return on January 2, 2025.

KJBob Reply
Jan 3, 2026 00:00

Hello zuluzu,

Congratulations on your custom board. Uploading your project would help the Support Engineers immensely. Here's how to do it:

Make some blank space in your post where your project file will insert.

Click the Insert menu below and select Image/Video/File.

The window shown below appears. Click Upload (A), navigate to and select your SigmaStudio project file. It appears in this window at (B).

Click the blue OK box (C). Your project file will appear as a large icon at the desired spot in your post. When you're done writing your post and click Reply, the icon will change to a link which when clicked, downloads your project file.

Best regards,

Bob

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