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Old 18th May 2016, 09:00 PM   #1611
miero is offline miero  Czech Republic
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No idea why, but check all these 3 files and set there uname_r=... and dtb=... variables:
- /uEnv.txt
- /boot/uEnv.txt
- /boot/uboot/uEnv.txt

It is also possible that your BBB has booted from the other one media (eMMC/SDcard) than you need.
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Old 19th May 2016, 12:55 PM   #1612
twluke is offline twluke  Japan
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Support for Botic Linux driver
Hi miero, thank you for giving me this occasion of testing.

Quote:
Originally Posted by miero View Post
- any problems with the installation?
No problem with the installation because I've accustomed to the basic setting after the last trial.
Quote:
- does it play sound without skips??
- does it play high sample rates >192kHz as well as previous version?
No problem with playing PCM and DSD sources up to 96kHz and 128fs, respectively, without skips, though experiencing stuttering in playing 192kHz PCM sources as before.

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Old 19th May 2016, 01:53 PM   #1613
bern is offline bern  Poland
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hi,
I'm trying to run new botic version but can't launch new kernel.
What value should have line 'uname_r=' from uEnv.txt?
I tried:
uname_r=4.5.0-botic7-rc1_4.5-botic7-rc1
but without success.
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Old 19th May 2016, 02:31 PM   #1614
francolargo is offline francolargo  United States
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Location: Twin Cities, MN
Hi Miero!

I'm using my backup BBB to experiment - no Cronus attached. I tried updating a 'boticized' Debian 8.3, which worked previously in the main system. I assume that now I need to set kernel option snd_soc_botic.ext_masterclk to 0. However, directory /boot/uboot is empty. Any suggestions? TIA!
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Old 19th May 2016, 03:20 PM   #1615
miero is offline miero  Czech Republic
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bern, try this:

uname_r=4.5.0-botic7-rc1

francolargo, probably this one:

mount /dev/mmcblk0p1 /boot/uboot
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Old 19th May 2016, 06:27 PM   #1616
bern is offline bern  Poland
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Thanks miero,
The newest version 4.5.0-botic7-rc1 is slightly faster than 4.0.0-botic5 in soxr integer upsampling (which is good achievement)
For example for upsampling from 16/44,1kHz to 176,4kHz squeezelite takes:
  • 4.0.0-botic5: 44% CPU usage
  • 4.5.0-botic7-rc1: 42%
24/96kHz upsampled to 192kHz:
  • 4.0.0-botic5: 55% CPU usage
  • 4.5.0-botic7-rc1: 53%

Last edited by bern; 19th May 2016 at 06:29 PM.
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Old 19th May 2016, 10:21 PM   #1617
francolargo is offline francolargo  United States
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With Botic 7 in Jessie 8.3 + new ACDf LADSPA filters in ALSA I see about 10% savings on CPU load (versus identical signal processing using Richard Taylor's LADSPA filters with Botic 5 in Wheezy 7.5). Good stuff! The new ACDf filters permit bandpass attenuation, so I may not have to mess with es9018 OSF FIR programming to prevent DAC clipping. But no critical listening yet - that is obviously the most important comparison.

Last edited by francolargo; 19th May 2016 at 10:23 PM.
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Old 19th May 2016, 10:29 PM   #1618
dwjames is offline dwjames  United Kingdom
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Does anyone know of a simple route to control bbb Botic from within Roon?
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Old 19th May 2016, 11:45 PM   #1619
francolargo is offline francolargo  United States
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Quote:
Originally Posted by dwjames View Post
Does anyone know of a simple route to control bbb Botic from within Roon?
I do not. If you control Roon using their iOS or Android remote apps, there is a 'side-by-side' option. The 'NetIO' app would not run "within" Roon's own remote control but 'right next door' on the remote device. I use a separate player app and NetIO to control the BBB and DACs via I2C. With the iPad you can change between the two apps using a 4-finger swipe.

NetIO APP

Control of BBB-based audio appliances
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Old 19th May 2016, 11:48 PM   #1620
francolargo is offline francolargo  United States
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Quote:
Originally Posted by francolargo View Post
But no critical listening yet - that is obviously the most important comparison.
Oops - no sound output when the Jessie uSD card is booted in the BBB with the Cronus. Perhaps there will eventually be a 'boticize' option with the new version 7, and I'll start fresh then...

Thanks Miero!
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