Sound-devices 722 User Manual download pdf (Page 29)

722 User Guide and Technical Information

Peak LEDs

input signal present LEDs

input peak LEDs

headphone peak LED

In addition to the main LED output meter, peak LEDs show input peaks, track peaks, and head-

phone peaks.

Input Peak

The 722 has a peak LED associated with each input. These LEDs illuminate when input signal

reaches –3 dBFS. There is no user-adjustment to the Input Peak LEDs. These LED’s also function as

indicators of input mute activity (see Input-to-Track Routing).

Track Peak

The 0 dBFS LED on each track can also function as a track peak indicator. The user can select a signal

threshold above which the 0 dB LED will ﬂash.

Headphone Peak

Like the channel peak LEDs, the headphone circuit has an indicator for peak overload. This LED is

useful, since headphones can often overload before the recorder overloads. Monitoring without a

visual indication of headphone clipping may mislead the operator into thinking that the output or

return tracks are distorting.

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 speciﬁed in the Setup

Menu option Tone: M od e. 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.

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.

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Sound-devices 722 User Manual Page 29