I'll have another play around then if there's no special trick to it, just don't recall seeing the option... Updating without reflashing is a real bonus!
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I'll have another play around then if there's no special trick to it, just don't recall seeing the option... Updating without reflashing is a real bonus!
I can switch mine on and find it if you cant see it
Thanks Grant, but I think I've realised why I didn't see it - I have a Pi B + and it seems that the advanced kernal is only available on the 2/3 versions, grrrr. I guess it's a relatively cheap upgrade, if the sound quality is noticeably improved. How have you found the switch to the new kernel and 384khz?
I felt it agood upgrade Luke. Yes ive a 2b rpi and use an audiophonics board.so cant speak for iqaudio ones now,although I did have one once. Think the audiophonics board is better personally,
Doesn't the Audiophonics DAC use the ESS chip? If so it seems just a bit unlikely that you can benefit from dissabling TI's digital filter with the advanced audio kernel!
Info from Tim about advance audio kernel.
Advanced: low latency kernel that provides advanced audio capabilities.
- Up to 384k sample rate for ES9023 and PCM512x codecs.
- Integer bclk divider for ES9023 codec on 48k/96k rates.
- DSD128 format support via 352.8k rate.
- Bypass OS filter on PCM512x, PCM514x, PCM524x via 384k rate.
- Fixed 64fs bclk ratio for 2 channel, 32/24/16 bit audio.
What this means in terms of some new audio capabilities is as follows.
1) 352.8k rate enables DSD128 in either DoP or DSD -> PCM on-the-fly formats.
2) Integer bclk divider for ES9023 codec on 48k/96k rates results in less jitter for these particular sample rates.
3) 384K rate when fed to one of the PCM51xx/52xx chips results in the chips' internal oversampling (OS) filter being bypassed. Some audio enthusiasts feel that sound quality is improved by doing this.
Does anyone know how to get Moode to work with the Boss DAC from Allo? I thought you could just select the IQaudio setting but i couldn't get any music to play.
Aha, thanks, I just found that out myself by delving into a DIYaudio thread. Not sure why I thought there was an existing workaround?! :scratch:
Will have to make do with Volumio for now (which is a lot slicker than I remember it and sounds good to me).