NBMrec/README.md

# NBMrec

Daemon recorder for nocturnal bird migration

## Install

```bash
sudo make install
```

## Disable temporary

```bash
sudo systemctl disable --now nbmrec.timer
```

## Uninstall

```bash
sudo make uninstall
```

## Configuration

In [./usr/local/etc/nbmrec/nbmrec.conf](/usr/local/etc/nbmrec/nbmrec.conf), you can specify a start and end time:

```text
START_TIME=22:00
END_TIME=06:00
```

If you change the start date, you should update the systemd timer `nbmrec.timer` accordingly:

```text
#/etc/systemd/system/nbmrec.timer
[...]
OnCalendar=*-*-* 22:00
[...]
```

Do not forget to reload systemd daemon after that:
```bash
sudo systemctl daemon-reload
```

You could also prefer modify [./conf/nbmrec.conf](./conf/nbmrec.conf), and run `make install` after each modification.

You can set an other output folder for your records:

```text
RECORD_DIR=/mnt/DATA/media/records
```

Or a filename prefix for your recordings:

```text
PREFIX=nbmrec
```

This way, the records filename will be in the form `nbmrec_20220630_220000.wav`.


Enjoy !

## Reference

- [audio recording using python](https://realpython.com/playing-and-recording-sound-python/)

- [audio recording from command line](https://superuser.com/questions/1570333/how-can-i-record-audio-output-from-command-line-in-linux)