Hi dialog:
I have been experimenting DA7218 ALC features on the eval board with Canvas. So far there are some erratic behaviors I could not reason with.
I used a tone generator as a source.
If the input to eval board is audio jacks, ALC behaves fine.
If the input to eval board is real sound from a speaker captured through the LP mic, ALC has a weird behavior describes as follows:
最小设置为-15 dbfs,最大5 dbfs,使用hybrid mode.
when noise level is set below -67dBfs, ALC behaves fine
when nose level is set > around 60dBfs, ALC fails to function! I turned up and down the volumn, no auto adjustment on the level as observed previously.
What's going on? Why a slightly higher noise level cripples ALC?
Device:
Hi,
Let me look into this and get back to you.
Kind regards,
ED
Hello,
Do you have anti clip enabled?
Could you share you set-up script?
Kind regards,
ED
No the anti-clip ctrl is not enabled.
Here are my set-up script:
ALC noise set to -42 dBfs, ALC stopes working below the min threshold.
If you have it set to -67dBfs and lower, it will work.
Please take a look. Thanks.
Thanks!
We would recomend enabling Anti-Clip. Do you calibrate the ALC?