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Alexandre
2024-10-16 10:00:04 +02:00
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commit 4a6c5b2ce0
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birdnet-pi/DOCS.md
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@@ -28,11 +28,18 @@ My conclusions aren't universal, as it seems to be highly dependent on the regio
- Sigmoid sensitivity : 1,25 _(I've tried 1,00 but it gave much more false positives ; as decreasing this value increases sensitivity)_
# Set RTSP server (https://github.com/mcguirepr89/BirdNET-Pi/discussions/1006#discussioncomment-6747450)
### On your desktop
Download imager
Install raspbian lite 64
### With ssh, install requisite softwares
<details>
<summary>On your desktop</summary>
- Download imager
- Install raspbian lite 64
</details>
<details>
<summary>With ssh, install requisite softwares</summary>
###
```
# Update
@@ -51,46 +58,11 @@ sudo apt-get install -y micro ffmpeg lsof
sudo -s cd /root && wget -c https://github.com/bluenviron/mediamtx/releases/download/v1.9.1/mediamtx_v1.9.1_linux_arm64v8.tar.gz -O - | sudo tar -xz
```
### Modify config.txt
</details>
sudo nano /boot/firmware/config.txt
```
# Enable audio and USB optimizations
dtparam=audio=off # Disable the default onboard audio to prevent conflicts
dtoverlay=disable-bt # Disable onboard Bluetooth to reduce USB bandwidth usage
dtoverlay=disable-wifi # Disable onboard wifi
# Limit Ethernet to 100 Mbps (disable Gigabit Ethernet)
dtparam=eth_max_speed=100
# USB optimizations
dwc_otg.fiq_fix_enable=1 # Enable FIQ (Fast Interrupt) handling for improved USB performance
max_usb_current=1 # Increase the available USB current (required if Scarlett is powered over USB)
# Additional audio settings (for low-latency operation)
avoid_pwm_pll=1 # Use a more stable PLL for the audio clock
# Optional: HDMI and other settings can be turned off if not needed
hdmi_blanking=1 # Disable HDMI (save power and reduce interference)
```
### Optional : install Focusrite driver
```
sudo apt-get install make linux-headers-$(uname -r)
curl -LO https://github.com/geoffreybennett/scarlett-gen2/releases/download/v6.9-v1.3/snd-usb-audio-kmod-6.6-v1.3.tar.gz
tar -xzf snd-usb-audio-kmod-6.6-v1.3.tar.gz
cd snd-usb-audio-kmod-6.6-v1.3
KSRCDIR=/lib/modules/$(uname -r)/build
make -j4 -C $KSRCDIR M=$(pwd) clean
make -j4 -C $KSRCDIR M=$(pwd)
sudo make -j4 -C $KSRCDIR M=$(pwd) INSTALL_MOD_DIR=updates/snd-usb-audio modules_install
sudo depmod
sudo reboot
dmesg | grep -A 5 -B 5 -i focusrite
```
### Optional : add ram disk
```
sudo cp /usr/share/systemd/tmp.mount /etc/systemd/system/tmp.mount
sudo systemctl enable tmp.mount
sudo systemctl start tmp.mount
```
<details>
<summary>Configure Audio</summary>
### Find right device
```
@@ -126,7 +98,11 @@ amixer -c 0 sset "$MICROPHONE_NAME" 60%
```
Startup automatically
</details>
<details>
<summary>Optional : Startup automatically</summary>
```
chmod +x startmic.sh
crontab -e # select nano as your editor
@@ -134,7 +110,62 @@ crontab -e # select nano as your editor
Paste in `@reboot $HOME/startmic.sh` then save and exit nano.
Reboot the Pi and test again with VLC to make sure the RTSP stream is live.
### Configuration for Focusrite Scarlett 2i2
</details>
<details>
<summary>Optional : optimize config.txt</summary>
sudo nano /boot/firmware/config.txt
```
# Enable audio and USB optimizations
dtparam=audio=off # Disable the default onboard audio to prevent conflicts
dtoverlay=disable-bt # Disable onboard Bluetooth to reduce USB bandwidth usage
dtoverlay=disable-wifi # Disable onboard wifi
# Limit Ethernet to 100 Mbps (disable Gigabit Ethernet)
dtparam=eth_max_speed=100
# USB optimizations
dwc_otg.fiq_fix_enable=1 # Enable FIQ (Fast Interrupt) handling for improved USB performance
max_usb_current=1 # Increase the available USB current (required if Scarlett is powered over USB)
# Additional audio settings (for low-latency operation)
avoid_pwm_pll=1 # Use a more stable PLL for the audio clock
# Optional: HDMI and other settings can be turned off if not needed
hdmi_blanking=1 # Disable HDMI (save power and reduce interference)
```
</details>
<details>
<summary>Optional : install Focusrite driver</summary>
```
sudo apt-get install make linux-headers-$(uname -r)
curl -LO https://github.com/geoffreybennett/scarlett-gen2/releases/download/v6.9-v1.3/snd-usb-audio-kmod-6.6-v1.3.tar.gz
tar -xzf snd-usb-audio-kmod-6.6-v1.3.tar.gz
cd snd-usb-audio-kmod-6.6-v1.3
KSRCDIR=/lib/modules/$(uname -r)/build
make -j4 -C $KSRCDIR M=$(pwd) clean
make -j4 -C $KSRCDIR M=$(pwd)
sudo make -j4 -C $KSRCDIR M=$(pwd) INSTALL_MOD_DIR=updates/snd-usb-audio modules_install
sudo depmod
sudo reboot
dmesg | grep -A 5 -B 5 -i focusrite
```
</details>
<details>
<summary>Optional : add RAM disk</summary>
```
sudo cp /usr/share/systemd/tmp.mount /etc/systemd/system/tmp.mount
sudo systemctl enable tmp.mount
sudo systemctl start tmp.mount
```
</details>
<details>
<summary>Optional : Configuration for Focusrite Scarlett 2i2</summary>
```
#!/bin/bash
@@ -188,8 +219,11 @@ amixer -c 0 cset numid=52 'Locked' # 'Sync Status'
echo "Mono optimization applied. Only using primary input and balanced outputs."
```
</details>
<details>
<summary>Optional : Autogain script for microphone</summary>
# Autogain script for microphone
```python
#!/usr/bin/env python3
"""
@@ -469,3 +503,5 @@ def main():
if __name__ == "__main__":
main()
```
</details>