Conexant HD20672 SmartAudio CRITICAL Issues!

Hi all
I discovered bugs while testing and writing a full guide to optimize sound with SmartAudio (Clean Install after clearing out Dolby + Windows High Definition driver). Tested out with 8.32.23.0 / 8.32.23.2.
The clips is under the attachment. The problem lies with the SmartEQ (probably 31Hz and 62Hz to be precise).
1. When you change back to Default EQ from Custom, the power limiter seems to lost control. (e.g. In the attachment)
Pros: This shows the hidden potential of the powerful sound (output level), it was so loud (louder than any laptop i heared) when the bug occurs.
Cons: The sound was so distorted that it could possibly damaged the onboard sound card or / and the internal speakers.
2. If you increase 31Hz and 62Hz band
Pros: The sound would be louder
Cons: The microphone quality would be very poor (eerie sound cames out)
Could anyone replicate this issues with any ThinkPads (X, T, W#20s/i/t) with Conexant HD20672 Sound Card? Currently, I am on hold for writing pdf guide for SmartAudio optimization. If it can't be fixed, I can't proceed any further. (hard to have great results with buggy drivers)
I apologize for any affected users that uses my Conexant tweaks under my old W520 Sound Enhancement Thread (Conexant part). I should have done more testing on the mic to be sure everything works perfectly. I would suggest users using Conexant to avoid using SmartEQ.
I am back to Dolby drivers for now. I would suggest next batch of ThinkPad changing to Realtek, IDT or even Creative for both quality and reliability purpose.
Cheers
Peter
ThinkPad: W520 (4284-A99)
=============================================
Does someone’s post help you? Give them kudos as a reward, as they will do better to improve
Mark it as solved if the solution works for you, so it could be reference for others in the future
Dolby Home Theater v4 (Essential/IdeaPad/ThinkPad)
http://forums.lenovo.com/t5/General-Discussion/Dolby-Home-Theater-v4-for-most-Lenovo-Laptops/td-p/62...
Attachments:
V0029_08-12-11.rar ‏2504 KB

Yup, affects both input and output. From my findings, 31Hz and 62Hz on high level causes whine issues during Skype (causing poor quality). I am not sure why did it happened. This does not occur on any previous ThinkPads or ThinkPads with Dolby drivers.
By the way, are you all able to reproduce any of the following? I doubt it's hardware (onboard sound card) fault.
Thanks
Peter
ThinkPad: W520 (4284-A99)
=============================================
Does someone’s post help you? Give them kudos as a reward, as they will do better to improve
Mark it as solved if the solution works for you, so it could be reference for others in the future
Dolby Home Theater v4 (Essential/IdeaPad/ThinkPad)
http://forums.lenovo.com/t5/General-Discussion/Dolby-Home-Theater-v4-for-most-Lenovo-Laptops/td-p/62...

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Does someone’s post help you? Give them kudos as a reward, as they will do better to improve
Mark it as solved if the solution works for you, so it could be reference for others in the future
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http://forums.lenovo.com/t5/General-Discussion/Dolby-Home-Theater-v4-for-most-Lenovo-Laptops/td-p/62...

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< MODERATOR: Message locked. Please read the [Rules of Engagement|https://www.sdn.sap.com/irj/sdn/wiki?path=/display/home/rulesofEngagement] before posting next time. >
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(reference)Material Determination - Critical Issue

Dear Friend.
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cYa ... Dirk©
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
As money not spent, won't make anyone richer
so knowledge not shared, won't make anyone wiser.
... and no, I'm not working for DELL

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