step 1 -- set channel Identification
Note: If you are just trying the recorder, skip stage A, scroll down to B, and type a fake
name in the configuration menu.
A. If you are starting an experiment, click the Animals tab and then click new
(for a new animal)
or change (to switch to animal you already recorded from). This will set the animal name, age,
and everything else you need to specify.
Note that all the SAP2 modules can access the animal information you just inserted, so
you only need to do this once per animal.
B. for each channel you plan to use, click
and go carefully through the
options: Setting Identification & Mode: type a bird name and check "Active" as shown
below.
just to make sure, set the visualization as shown below
Go to the Next Stage ->
Or, below, you can find additional information (you probably do not
need to know this):
ID: this is the internal identification of the channel. Normally you will not want to
change it. Again -- do not change it unless you want to save different configurations for
the same channel.
Warning: Changing “ID” instead of “Name”, and then
will reset all channel
options
Bird Name: The recommended way of setting an animal name is not via this settings but
via the “Animals” tab. For now, we will set a temporary animal name just to allow
testing. The name of the animal - it can be either a string or a number. No spaces are
allowed. Feel free to change it whenever you want and it will have an immediate impact
on the wave file names (each wave file created by the recorder starts with the bird's
name).
States & Modes
Each channel can record in one of the following modes:
Active: The channel record sound when triggered by an appropriate input.
Monitor only: The channel display the sound but does not record or triggered other
channels.
Direct recording: The channel behaves like a simple tape recorder (remember those
devices?): it turns on by clicking start and off by clicking stop. It records files of certain
duration, e.g., a new file every minute.
Pre-Buffer: Do not worry about this for now. It set how many samples are recorded prior
to triggering. Setting it to 44100 will record sound starting 1 second before triggering
occurred (e.g., about 1s before the song begins).
Slave: Recording is triggered by another (master) channel. This is useful when recording
combined sound and electrophysiology. Note that the sampling and accuracy quality of
most sound cards is good enough for capturing single and multiunit activity. For EEG
recording you must take into account that low frequencies (2Hz and lower) are not
captured by most sound cards.
Note: in order to automatically save recorded data on a slave channel, you must check
'slave' in the Sound Processing Live module of this channel. Otherwise, the content of
that channel will be judged separately than that of the master. For example, if the slave
channel is used to capture neural data, you want those data to be coupled to the sound so
that a decision to save or delete the sound (master) channel will apply to the slave
channels.
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