Sound Devices 788T - Manual (Page 89)

Tone Oscillator
The tone oscillator can be used as an aid to lining up levels. Both tone level and frequency are user
selectable. Reference level is adjustable over a range of
 40 to 0 dBFS in the Setup Menu option
TONE: LEVEL . The tone frequency is adjustable from 100 to 10,000 Hz in increments of 10 Hz from
the Setup Menu option TONE: FREQUENCY. Standard tone levels vary according to the practices and
needs of production and post-production, but are generally in the –20 to
 12 dBFS range.
The tone oscillator is activated by pressing the TONE key. Press and hold for two seconds to
latch on, pressing again will deactivate the tone signal. Tone is routed where specifi ed in the Setup
Menu option TONE: MODE. Routing choices include: Outputs only, Outputs and Tracks, Tracks only,
or no tone routing (disabled). When routed to Tracks, all selected record tracks will receive the tone
signal. Changes to tone oscillator settings made while tone is latched on do not take affect until tone
is turned off.
Tone mode options are available with “L-Ident” (Left Identify). When an L-Ident Tone Mode is se-
lected and tone is engaged, the amplitude of the tone in some channels will oscillate between the set
tone level and -20 dB at a rate of 1 Hz (once per second). This feature is useful to verify connections
to outboard gear (i.e. a camera). L-Ident tone sent to record tracks will oscillate the tone signal on
Track L. L-Ident tone sent to outputs will oscillate the tone on all odd-numbered outputs (1, 3, and 5).
To record tone at the head of a take, activate the tone signal then press the REC key. From the factory,
subsequent presses of the TONE key are locked out to prevent tone from being inadvertently record-
ed. Tone can be activated while recording by following these steps.
1. Enter the Setup Menu option FILE: MARKER MODE and set it to disabled.
2. Press the REC key to begin the recording.
3. To record tone, Press and hold down the REC key then press the TONE key. To latch tone,
press and hold the Tone key for 2 seconds, press again to release. Once tone is generated the
REC key can be released.
The tone oscillator can be activated anytime during recording by setting the TONE: RECORD LOCK
feature in the Setup Menu. Press the Tone key anytime to generate a tone signal. Please note that
when enabled, any slight press of the tone key will generate tone and override any program material
where tone has been routed to, including record tracks.
The Tone Oscillator can be activated from the CL-9. See CL-9 Communications for details.
LCD Contrast & LED Brightness
LCD contrast is controlled in the Setup Menu option LCD: CONTRAST. From the factory, the contrast
is set to 50%, suitable for most viewing conditions. Contrast can be adjusted from 0 to 100% in 1%
increments.
LED brightness is continuously adjustable from low to high. To adjust the LED brightness level,
hold down the LCD Backlight key then turn the Rotary Switch. In Stealth Mode the LEDs are
toggled On and Off with the LCD backlight key. Enable Stealth Mode in the Setup Menu option
METER: STEALTH MODE.
LCD Backlight
To toggle the LCD and Front Panel Soft Key backlight press and hold the LCD Backlight
key and press in on the Rotary Switch. Backlighting is suitable in low or no ambient light situ-
ations. By Factory Default the LCD backlight will be White in Standby, Green in Playback, and
Red in Record Modes. The user can defeat the LCD backlight by color in the Setup Menu option
LCD: BACKLIGHT MODE
.
Monitoring and Me
tering
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788T/788T-SSD User Guide and Technical Information
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