Deva 24

Elevating Recording

Manual

The Zaxcom Deva 24 is the newest incarnation of the Emmy and Academy Award winning line of Deva mixer / recorders that have set the standard for capturing field audio. It features a touch-screen interface that’s instantly familiar to past Deva users and intuitive for new users.

Functionality

Deva 24 introduces a completely new recording and mixing system that delivers unsurpassed audio quality and control. Based on its award-winning predecessors, Deva 24 integrates 24 track recording with versatile input/output routing, ZaxNet, NeverClip, PowerRoll and MixAhead with a fast, intuitive touch screen interface.

Connectivity

Deva 24 features 16 analog inputs, 12 are switchable mic or line level, each with adjustable limiter, high pass filter, input delay and 48V phantom power. NeverClip preamps provide 136 dB of dynamic range. Four additional line level inputs can be used as returns.

24 input channels of AES are available, 16 support AES42. With sample rate conversion, each input allows for a different sample-rate. Deva 24 accepts any unlocked AES signal with a sampling-rate of 32 to 192 kHz. The dynamic range of the sample-rate conversion is 124 dB.

10 output busses provide routing flexibility through four XLR, three TA-5M and three 3.5mm connectors. Outputs feature delay settings, level attenuation and assignable output names. 12 direct output channels of AES offers a processor independent feed to a backup recording system.

There are additional connections for timecode, external slate mic and redundant power. USB slots connect Deva 24 to the Mix-16, Oasis and RX-12.

Recording

Audio can be recorded to three media simultaneously. An internal 2.5” SSD (1TB max capacity) is the primary media paired with two compact flash (CF) card slots. Files are recorded as MARF II, a lossless fault tolerant recording format to the internal drive and as Broadcast Wave files (BWF) to the CF cards. The CF card slots can record individually or simultaneously in 16 bit or 24 bit formats. An eSATA port provides an external hard drive (SSD or HDD) option that takes the place of a single CF card slot.

Mixing

12 rotary faders can be assigned to act as a fader, input trim knob or a ZaxNet control knob. Deva 24 has a three band equalizer for each input where low shelf, peaking, and high shelf can be adjusted. The rotary encoder allows you to adjust the compressor settings, input trim and invert the phase of an input.

8 tracks provide an infinite mix of all Deva 24 inputs, while 16 tracks are dedicated to ISO routing. Any of the 16 analog or 24 digital inputs can be assigned to an ISO track as either pre or post fader.

Combining Deva 24 with a Mix-16 or Oasis control surface offers a seamless integration for the sound recordist. Only a single USB cable is needed to link the Mix-16 or Oasis to Deva 24. Simply connect and go.

Touchscreen

Deva 24 touts a detachable front panel interface with a touchscreen menu system that’s fast, easy to learn and reliable. Connecting a compatible MAC or PC allows both hardware and software components to be controlled remotely through the Deva 24 GUI by a computer mouse or Deva 24. The remote computer keyboard can be used to enter metadata. A USB cable provides the connection.

Advanced Features

ZaxNet, PowerRoll and MixAhead provide advantageous tools for the sound recordist.

ZaxNet provides remote control over Zaxcom Digital Recording Wireless transmitters through a 2.4 Ghz RF signal. Pre-amp gain, frequency, output power and record/playback/stop functions can be adjusted without needing to approach the talent. ZaxNet is supported by an IFB200 connected to Deva 24.

PowerRoll allows ZaxNet controlled transmitters to increase its output power level when Deva 24 goes into record and then decrease its output level when recording stops. This conserves battery power on the transmitters.

MixAhead eliminates errors in human reaction time. Users can select a time up to 250 milliseconds (ms) for audio in the console to be delayed. Adding the extra time allows you to hear the audio first and then have time to react.

Right panels

Left panels

Features

Effects

Marf

Neverclip

Prerecord

Timecode

Zaxnet Remote

Effects

Zaxcom recorders provide powerful software based effects on every channel.

Equalization
All of Zaxcom recorders have high pass and two notch filters per channel which are an excellent tool to remove noises such as 60/120Hz hum, lighting ballast noise, motors, wind noise and more. Deva and Fusion add 3-band shelving equalization. The EQ is phase accurate channel-to-channel and totally adjustable.

Compressor
A full-featured soft-knee compressor is optional on each input channel, record track and output bus. Ratio, threshold, attack, release and makeup gain are all controllable.

Expander
The Expander is a great new tool that expands the dynamic range of audio. This function can be used to lower the noise floor of a noisy microphone or recording environment.

Marf

Highly reliable lossless recording format

Marf Explained

Mobile Audio Recording Format or MARF is Zaxcom’s lossless fault tolerant recording system. MARF is a very robust recording system where the recorded digital files don’t need to be closed or finalized. So if power is lost during recording, all audio right up to the point where power is lost, will be preserved. MARF’s robustness lends itself often be immune from viruses and corruption that can affect standard recording formats.

All Zaxcom MARF files can be quickly and easily converted to both industry standard BWF and MP3 file by using the ZaxConvert utility. All timecode information and Meta Data is preserved and carried over when using ZaxConvert.

Neverclip
NeverClip™ incorporates two separate analog to digital converters that work in conjunction with each other to give you an unprecedented 137dB of dynamic range in Nomad and Zax-Maxx recorders and 125dB of dynamic range in Zaxcom TRX wireless and ZFR miniature recorders. The signals from the two converters are combined in the digital domain to provide the entire, unclipped dynamic range of the audio inputs to Nomad, Maxx, TRX’s transmitters or ZFR’s recorders.

The full dynamic range of the NeverClip inputs can also be recorded to the isolated record tracks of Nomad and Maxx. These tracks can give you extended headroom of up to 44dB. Currently, typical file headroom is 20dB but Zaxcom’s NeverClip files can offer headroom of 26dB, 32dB, 38dB or 44dB.

The embedded iXML track metadata will indicate the headroom for each NeverClip file. NeverClip files are
industry standard Broadcast Wave files with extra iXML data included which can
be utilized by any post production system.

If you’re recording on a Zaxcom Nomad recorder, please talk to your post department to see how NeverClip files can enhance dynamic range and give them the isolated track files they need to produce the best mix possible.

Prerecord

Prerecord allows you to hold incoming audio in an internal buffer. You can choose to buffer up to 10 seconds of audio in Deva, Fusion and Nomad and 5 seconds of audio Maxx (some time limitations may exist for higher sample rates – see the products specific manuals for addition details).

From the point the recorder is powered up, any sound coming in from any input is always being processed whether you are recording or not. So when pre-record is enabled, that processed signal can be held in a buffer that is constantly being refreshed.

When you press the RECORD key, all audio stored in the buffer will be included the current take with the corrected time code. Since the recorder is always processing the incoming audio no additional battery power is use when prerecord is engaged.

The pre-record buffer is dumped after any of the following settings are changed:

  • Sample-rate, Time code, User-bits, Frame- Rate, Track count
Timecode

Built-in timecode reader and generator

Timecode

Timecode is a sequence of numeric codes generated at regular intervals and is used for synchronization, logging and identifying record material in film, video and audio production.

All Zaxcom mixer/recorder recorders, TRX recording transmitters, ZFR miniature recorders, ERX receivers and QRX receivers with QIFB option feature fully functional timecode readers and generators.

The timecode reader in each of these units will allow it receive external timecode that the unit will lock to. Zaxcom mixers/recorders and QRX receivers also allow you to enter in your own timecode manually.

After inputting, or locking to, an external timecode signal the timecode generator will now take over and generate it own frame accurate timecode. The timecode generator in all of Zaxcom products, with the exception of the ERX, are very stable and use TCXO temperature compensated crystal oscillators that give a clock accuracy of 1.54 PPM which equates to 1 frame out in 6 hours. In the case of the ERX an TCXO chip is not necessary since it is constantly updating its timecode from the source. All products can read and generate all standard SMPTE timecode frame-rates: 23.98, 24, 25, 29.97NDF, 29.97DF, 30NDF, 30DF.

Zaxnet Remote

Provides wireless timecode, ZaxNet audio and remote control between Zaxcom products

What is ZaxNet?

ZaxNet is a wireless network that runs on a user selectable 2.4 GHz RF signal. ZaxNet is used for the distribution of timecode, IFB audio and metadata. That same ZaxNet signal is also is used to control TRX wireless transmitters.

ZaxNet gives you the ability to control any Zaxcom TRX wireless remotely, so there is no need to approach talent and fumble with a transmitter anymore. You can remotely change the
frequency, pre-amp gain, transmitter output power and have the ability to place
the transmitter’s built-in recorder into record, playback and stop modes. All TRX transmitters also receive timecode for the built-in recorder via ZaxNet.

ZaxNet will also distribute audio, timecode and metadata over the same ZaxNet 2.4GHz frequency. This allows you to send timecode and audio throughout your set. An ERX-TCDwill receive Zaxnet and simultaneously output frame accurate timecode and audio. So an ERX-TCD mounted on a camera or digital slate will keep everything in perfect sync since the ERX will be constantly be re-jamming its timecode via ZaxNet. Another option is to use the ERX-TCD to simultaneously feed both timecode as well as a mono audio track to any camera (even if the camera does not have a  timecode input).

An ERX body pack receiver can also be used on set for anyone to monitor audio via the same ZaxNet signal. Not only can you use an ERX for monitoring audio but it can also aid in taking script notes since the LCD on the ERX can display timecode, user bits, and scene and take information.

Specifications

Analog In

  • 12 Mic/line-level with NeverClip™ 48V phantom power & 4 line-level (camera return or mix inputs)
  • Connectors: 6 x XLR-3F & 5 x TA5 (two inputs per TA5)
  • Mic level input range: -56 to -26 dBu
  • Line level input range: -20 to +8 dBu
  • Distortion: 0.0015%
  • ADC bit-depth: 24 bits
  • ADC dynamic range: 136 dB
  • Clipping level: +28 dBu
  • Frequency response: 20 Hz to 22 kHz (48 kHz sampling-rate)
  • THD + noise: 0.0015%
  • Slate mic input: External balanced / unbalanced with +5V bias

Analog Out

  • 4 Balanced XLR, 0dBu, -10dBu and -30dBu
  • 3 Balanced TA5 (two outputs per TA5) 0dBu, -10dBu and -30dBu
  • Tape/mono output: 2 unbalanced 3.5mm adjustable from -12dBu to 20dBu
  • Headphone 1: 1/4 inch and 3.5mm (front panel) stereo bus
  • Headphone 2: 3.5mm stereo bus
  • Output level: 0 dBu @ -20 dBFS
  • Clipping level: +20 dBu
  • DAC Bit-depth: 24 Bits
  • DAC Dynamic Range: 115dB
  • Impedance: 30 ohm

Digital In

  • Digital Inputs: 24 (8 AES/AES42 pair with SRC)
  • Connector: DB-25 female

Digital Out

  • Bus output channel count: 4 AES pairs (8 channels)
  • AES direct out: 6 AES pairs (12 channels with no processing)
  • Connector: DB-25 Female

Recording

  • Track count: 24 (16 ISO tracks + 8 mix or ISO tracks)
  • Bit-depth (primary): 24 bits
  • Bit-depth (mirror): 24 bits
  • Sample rates (kHz): 48, 48.048
  • Head room: 12 to 20 dB (NeverClip™ extends analog dynamic range)
  • Primary Format: MARF II / .ZAX
  • Mirror Format: FAT32 / BWF-P, BWF-M
  • Max Pre-record duration: up to 10 seconds
  • MixAhead™: .5 seconds max in 10mS steps
  • 2 simultaneous mirror media

Data Storage

  • Primary Media: 2.5″ SanDisk SSD drive
  • Mirror Media: 2 x CF Card slots, eSATA port
  • (2 media simultaneous mirror)

Internal Mixer

  • Mixer Type: 32 bit floating point DSP
  • Recording track mix bus: 8
  • ISO track routing: 16 tracks + 8 when a single source is routed to a mix bus
  • Stereo headphone busses: 2
  • Busses: 10 (including headphone output x 2)
  • Mixer Cross Point: 32 input x 16 output (Pre-fader / Post-fader / Phase Inversion)
  • A-D / D-A resolution: 24 bit
  • Head room: Selectable 12 to 20 dB
  • Output bus delay: 0 to 100mS in 1mS steps

Effects

  • Delay: 0 to 60 mS in .1mS steps
  • 3 Band shelving filter EQ
  • Notch filter: 2 band, 20 Hz to 20 kHz frequency range adjustable
  • Compressor type: Soft knee with side chain
  • High Pass Filter: 20 Hz to 230 Hz

Timecode Reader/Generator

  • Timecode type: SMPTE
  • Connector: BNC x 2
  • Input Voltage: 1-4VPP
  • Output Voltage: 2VPP
  • Clock Accuracy: 1.54 PPM (1 frame out in 6 hours)
  • Timecode Frame-rates: 23.98, 24, 25, 29.97NDF, 29.97DF, 30NDF, 30DF

Power

  • Type: Dual external with auto switching
  • External Power: 8 to 18 VDC @ 1 amp
  • Power Connecter: 4-pin Hirose female x 2
  • Battery Meter: Yes, on LCD display
  • Output power: 4-pin Hirose female (1 amp)

Physical

  • Size (H x W x D) while looking at screen: 3.0″ x 10.5″ x 7.0″
  • Weight: 5.4 Lbs

Misc.

  • Display: 2.8″ full color sunlight readable LCD touch screen
  • Slate Mic: Internal / External
  • Serial/RS-422: 3 x 4-Pin USB style
  • Serial/RS422: 1 DB9 connection
  • Serial Port: Zaxcom Proprietary
  • Compatible with Mix-16, Oasis