Raspberry Pi 4 release notes (at the
bottom some configuration notes)
2.1.0
1) Full system update
2) Menu 205 with
Various internal improvements and
fixes
Added new Audiolinux repository to pacman.conf
Camilla DSP! New options:
In Expert menu 'CAMILLADSP installation'. This script will install and
configure Camilla DSP - a flexible linux IIR and FIR engine for
crossovers, room correction etc
In Audio menu added 'CAMILLADSP start and enable' and 'CAMILLADSP GUI
start and enable'
You can access Camilla DSP configuration at ipaddress:5002
New Audio conversion script in Expert menu:
1) SET your music directory
2) SET DSD sampling frequency
3) SET PCM sampling frequency
4) CONVERT PCM flac/wav/mp3 to DSD dsf
5) CONVERT DSD dff to DSD dsf
6) CONVERT DSD dff/dsf to PCM flac
7) UPSAMPLE/CONVERT PCM flac/wav/mp3 to PCM flac
8) UPSAMPLE/CONVERT DSD dff/dsf to DSD dsf
9) SET DSD extra conversion parameters (for experts)
10) SET PCM extra conversion parameters (for experts)
11) View, copy, move, delete your music files
AUDIOLINUX ACCURATE CD RIP script with the following options:
1) Find the offset of your CD player
2) Set your music directory
3) RIP to flac
4) Edit configuration (templates etc.)
Improved MUSIC2RAM script: now show available memory and added music
folders after adding files to RAM. Fixed bug in reboot restore.
General cleaning of scripts
Improved squeezelite configuration script now using the form hw:x,x for
audio card
NEW! UPnP server - configuration at ipaddress:9790
Added hqplayerd to rtapp list of applications
Added option for hqplayerd start in Web Interface 2
2.0.0
1) New Audiolinux OS 64 bit with custom realtime kernel linux-raspberry4-rt version 5.10.25-1-rt35
Now you can use the full memory of 8GB with ramroot.
2) Menu 200 with the possibility to install hqplayer-embedded
1.5.0
1) Full system update
2) New realtime kernel linux-raspberry4-rt version 5.10.25-1-rt35
3) menu 113 with
Forced update to ramroot version 2.0.1-2
Fix to Shairport-sync installation
Fix to spotify installation script in Update menu. spotifyd-slim now substituted by spotifyd
1.4.0
1) Full system update
2) menu 111 with
Updated list of audio applications with high priority if running (rtapp)
Fix to MPD configuration script. Now you should give the full path of your music directory
Message if the user start menu as root user (You should not do that...)
Improved remote mount script. Now it will display the content of /etc/fstab and you can select the option "Umount it and delete the corresponding line in /etc/fstab" if you have made a mistake. Fix to NTFS mount
Added application install and remove in WEB Interface 2 at ipaddress:5001
Fix to Network speedlimit script. Added option to reduce speed to 10 Mb/s
1.3.0
1) Full system update
2) Kernel updated to linux-raspberry4-rt version 5.4.69-1-rt39 (custom kernel only for Audiolinux)
3) Menu 109 with
New option 1 "REALTIME MANUAL ASSIGNMENT configuration" configuration" in EXPERT menu. This is a great news, since now you can set priority for IRQ, APPLICATION and NETWORK and see a summary with 0 "SHOW configuration" in main menu. This script is available only on Audiolinux and is using proprietary code.
ISOLATE CORES option 16 "ISOLATED CPU CORES configuration" completely changed. Now you can isolate and... de-isolate CPU cores without changing kernel line and reboot. The effects are immediate!7 "ISOLATED CORES Assign core to application" in expert menu also changed with the new isolated cores configuration. Applications can use different cores and configured without restarting. An application is checking the isolation status periodically and will make the necessary changes.
Improved 0 "SHOW configuration" in main menu now show also which applications are running in which core.
Added buffer option to 9 "SQUEEZELITE select DAC and buffer" in audio menu
Now in Web Interface at ipaddres:5001 the various menus are in different folders. A lot more easy to use!
Many other little changes and fixes and a general cleaning of scripts removing duplicates.
Simplified Realtime Priority summary on SHOW configuration and some other minor fixes
Main menu will try only 2 times to download new version number to avoid too long waiting time if Internet connection is down or slow. Menu update script will download menu file only if necessary
Since the package spotifyd-bin is no more available, it has been replaced by spotifyd-slim
Now after installing this package and logitechmediaserver-git all packages needed only for compilation are removed, to save disk space
Profile scripts updated to the new options
1.2.0
1) New Web Interface at ipaddress:5001
2) Full system update
1.1.0
1) Full system update
2) Many fixes to menu
3) Ready to use with Pimoroni Heatsink and
Fan Shim. To enable the service: sudo systemctl enable fanshim and
reboot
1.0
Realtime kernel Raspberry 4.19.71-1-rt24-ARCH
Very
good CPU latency with a variation in test of only 5us max, 2us avg!
[root@raspberry
audiolinux]# cyclictest -l 10000 -m -Sp98 -i100 -d0
# /dev/cpu_dma_latency set to 0us
policy: fifo: loadavg: 3.72 1.93 0.76 1/166
15651
T: 0 (15648) P:98 I:100 C: 10000
Min: 4 Act: 4
Avg: 4 Max: 14
T: 1 (15649) P:98 I:100 C: 9725
Min: 4 Act: 6
Avg: 4 Max: 10
T: 2 (15650) P:98 I:100 C: 9463
Min: 4 Act: 4
Avg: 4 Max: 9
T: 3 (15651) P:98 I:100 C: 9150
Min: 4 Act: 5
Avg: 4 Max: 10
Ramroot
possible with 4GB model
MAIN MENU
0
"PROFILES menu"
1 "AUDIO menu"
2 "SYSTEM menu"
3 "STATUS menu"
4 "INSTALL/UPDATE menu"
5 "EXPERT menu"
6 "Show configuration"
7 "Console mode"
8 "SAVE System (if in
ram mode)"
9 "Poweroff"
10 "Reboot"
SYSTEM MENU
1 "FILE EDITOR"
2 "FILE EDITOR root"
3 "MOUNT local drive"
4 "MOUNT remote
drive"
5 "CLEAN system"
6 "RESIZE AL partition
(if in ram mode)"
7 "FORMAT extra drive"
8 "NETWORK
configuration (Bridge, DHCP, Static IP)"
9 "WiFi"
10 "REALTIME PRIORITY
to standard or extreme"
11 "RAMROOT
enable/disable (reboot after)"
12 "RAMROOT
configuration"
13 "BOOT mode to
Extreme, Standard or Custom"
14 "OVERLAYS
configuration"
15 "CPU SPEED to
performance or ondemand"
16 "ISOLATED CPU CORES
configuration"
17 "SAVE System (if in
ram mode)"
AUDIO MENU
1 "SHOW audio services"
2 "STOP and disable all
running audio services"
3 "HQPLAYER start and
enable (not available)"
4 "ROONSERVER start and
enable (not available)"
5 "ROONBRIDGE start and
enable"
6 "NAA start and
enable"
7 "AIRPLAY start and
enable"
8 "SQUEEZELITE select
DAC"
9 "SQUEEZELITE start
and enable"
10 "LMS start and
enable"
11 "MPD select DAC,
music directory and buffer"
12 "MPD start and
enable"
13 "MPD UPnP start and
enable"
14 "SPOTIFY start and
enable"
15 "SAVE System (if in
ram mode)"
UPDATE MENU
1 "Install/Update Roonbridge"
2 "Install/Update
HQPlayer embedded (not available)"
3 "Install/Update NAA"
4 "Update kernel (for
expert users)"
5 "System update (for
expert users)"
6 "Update audiolinux
menu"
7 "Install/Update MPD"
8 "Install/Update UPnP
for MPD"
9 "Install/Update
Logitech Media Server"
10 "Install/Update
Squeezelite"
11 "Install/Update
Spotify"
12 "Install/Update
Shairport-sync"
13 "Remove installed
audio applications"
14 "SAVE System (if in
ram mode)"
EXPERT MENU
1 "Assign a specific isolated core to audio applications"
2 "REALTIME EXPERT
CONFIGURATION enable/disable"
3 "REALTIME MANUAL
ASSIGNMENT enable/disable"
4 "ETHERNET speed
limit"
5 "WEB INTERFACE
enable/disable"
6 "ALSA system wide
configuration"
7 "SAMBA SERVER
enable/disable"
8 "SAMBA SERVER add
share"
9 "ENABLE/DISABLE
bluetooth"
10 "ENABLE/DISABLE
WiFi"
11 "SAVE System (if in
ram mode)"
PROFILES MENU
1 "Green"
2 "Orange (default)"
3 "Red"
4 "Auto (generated by
menus)"
5 "Copy Auto to Custom"
6 "Custom1"
7 "Custom2"
8 "Custom3"
Example configuration:
RTMANUAL="1"
RTEXPERT="0"
PRIORITY="standard"
CPUSPEED=""
BOOT="extreme"
ISOLATED="0"
ISOLATEDIRQ="0"
SAMBA=""
# RTMANUAL: realtime manual assignment
"1" enabled, "0" disabled
# RTEXPERT: realtime expert configuration "1"
enabled, "0" disabled
# PRIORITY: realtime priority
"standard", "extreme"
# CPUSPEED: CPU frequency
"performance", "ondemand" not available in realtime
kernel
# BOOT: boot mode
"standard", "extreme",
"custom"
# If you have configured boot mode with "SET CPU C-states" in Expert
menu, set this to an empty value
# ISOLATED: isolate a set of
cores
"0" disabled, <core number> (first is 0, not available) or an
interval of cores
# For example 1-2 will isolate core 1,2 / 1-3 wil isolate core 1,2,3 /
2 will isolate only core 2
# If enabled, all audio services will be disabled and hyper-threading
disabled even if set to 1 (enabled) on this configuration file
# You can re-enable your audio services after reboot
# ISOLATEDIRQ: isolate audio
irqs
"1" enabled, "0" disabled
# This will disable C-state configuration in expert menu
# SAMBA: samba server
"1" enabled, "0" disabled
# IMPORTANT: if value is empty your configuration will not be changed.
# This is useful if you have applied some special configuration, for
example if you have activated C-state in expert menu
# Example: BOOT=""
---------------
For Allo DigiOne, you should add the line
dtoverlay=allo-digione
to /boot/config.txt
For Allo boss, you should add the line
dtoverlay=allo-boss-pcm512x-audio
to /boot/config.txt
For I2S DAC (this configuration was tested on a rpi3/Sllo isolator/Kali
reclocker/Soekris 1121 DAC)
dtparam=i2c_arm=on
dtparam=i2s=on
dtparam=audio=off
dtoverlay=rpi-dac
For disabling
LEDs
dtparam=act_led_trigger=none
dtparam=pwr_led_trigger=none
For a full list of Raspberry options: https://www.raspberrypi.org/documentation/configuration/config-txt/overclocking.md