HQSound* 1 band version	HQSound*  2 band version	HQSound* 4 band version
Processing power		1.6 Giga Flops	2.8 Giga Flops
Sampling frequency for processing	192 kHz	192 kHz	192 kHz
Sampling frequency for final clipper	1.5 MHz	1.5 MHz	1.5 MHz
Predictive algorithms	X	X	X
Gated AGC	X	X	X
Parametric equalization		4 bands	4 bands
Tone FX (LF and HF enhancers)		X	X
Controlled Stereo enhancement		X	X
Revolutionary multi-band processing		2 bands	4 bands
Multi-band Limiter		2 bands	4 bands
Dual path for FM and digital applications (HD, DMB, DAB…)	X	X	X
User and factory presets	X	X	X
Band upgrade capability	X	X
Sound process delay	< 3ms	< 4ms	< 6ms

*Sound4 HQSound: Our customers say  this is the most incredible dynamic processing engine ever made…
Why does HQ Sound give such good results?
The results of our extensive tests prove that HQSound, the new algorithm engine specifically developed for our range of products, offers on average 20 times more power than those commonly used in competitors’ products. So, with 4 bands and no other peripherals in front or behind it, HQSound can rival and even surpass processing chains made up of several processors in series

Automatic Gain Control

Using predictive techniques, the AGC is based on complex algorithms that correct large level variations without any pumping effect. It maintains a constant audio level on the air. The wideband approach keeps the balance between frequencies. Silence gating prevents unnecessary volume changes and improves processing quality.

Tone FX

A 4-band parametric equalizer in both the 2 band and 4 band audio processors enables the creation of specific sonic signatures. For each band it allows the creation of specific sonic signatures thanks to its 4-band parametric equalizer. For each band it is possible to configure the frequency, the gain and the filter quality. This level of precision is extremely useful for bass enhancement. You can also increase high and low frequencies dynamically thanks to the Bass FX and Treble FX.

Stereo FX

Enhance the stereo effect of your signal with perfect control. Stereo enhancement used to be a source of reception issues such as multi-path. The Digiplexer 246 includes a specific limiter to insure reception stability.

Multi-band Processor

The Digiplexer 246 uses a unique algorithm that controls the gain for each band. You can easily control how the Digiplexer 246 will process your sound and each band can be separately gated. A ‘fidelity’ parameter enables you to control how close to the original sound you’d like to remain (Purist/Processed). The Digiplexer 246 also offers the Sound Impact System, a revolutionary algorithm that preserves dynamic and peak attack perception.

Multi-band limiters

The Digiplexer 246 contains advanced multiband limiters. Its look ahead function guarantees perfect peak control without the drawbacks  typically found in other limiters. A mix function enables control of the balance between the bands.
 

Final limiters

Previously the best clippers on the market were running at a sampling rate of 768kHz. The Digiplexer 246 a revolutionary FM Limiter that samples at 1.5 MHz. This level of quality and control has never been reached before. You can precisely control high frequency energy with the HF limiter and an HD limiter can be used at the same time to process high quality digital radio (HD /DAB / DRM).

Preset management

The Digiplexer 246 has many factory presets designed for every format. The unit keeps a complete preset history, so you will never lose an existing configuration. Presets can be password protected to ensure that your selected audio settings are only ever changed by those you can trust.
 

User friendly and intuitive interface

Audio configuration made easy:

• Instantly compares current settings with an existing preset.
• Keeps a record of all modifications thanks to the complete undo/redo function
• Easy mode” for simplified audio configuration or “Full mode” for much greater depth.
• Creates your own view by selecting the meters you want to see
• Each preset can be protected by password

RDS Parameters	Basic RDS	Full RDS
PI: Program Identification codes	X	X
PS: Program Service name (Scrolling PS)	X	X
TP – TA: Traffic Program and Traffic	X	X
Announcement flags	X	X
MS: Music Speech flag	X	X
DI : Decoder Identification	X	X
PTY – PTYN : Program Type & Type Name	X	X
AF: Alternative Frequencies list	X	X
Method A (up to 25 Frequencies)	X	X
Method B	up to 25	up to 900
RT: Radio Text	X	X
Connection to automation software	X	X
IP connectivity	X	X
SLC, PIN, LINK, EON, TDC, TMC, ODA, EWS, Paging, IH		X
DSN / PSN	2 DSN / 1 PSN	10 DSN / 10 PSN
RT+: iTunes compatible		X

STEREO ENCODING

Using high speed DSPs, the Digiplexer 246 includes a highly over-sampled stereo encoder that offers amazing stereo performance and perfect synchronization. The MPX limiter enables control of the composite power conforming to ITU-R412.

• DSP technology and perfect synchronization of all subcarriers
  • Audio, Pilot and RDS signals are produced in the same unit
• Stereo Encoder is highly over-sampled for unparalleled stereo performance
• HQSound means higher audio quality for listeners:
  • 192 kHz sample rate for audio processing
  • 1.5 MHz sample rate for final limiters
  • Extend FM audio bandwidth to 17 kHz without affecting the 19 kHz or L-R signals

I/O REMOTE CONTROL

The Audemat Digiplexer 246 has 5 slots that can be equipped with digital input, analog input and relay output boards. As standard, it includes Scripteasy V2, powerful software that enables the creation of scripts and automatic routines. This capability can be used to control other equipment such as a satellite receiver, to trigger  Traffic Announcements (RDS) or to control and play audio files stored on the local hard drive of the Digiplexer 246. Scripteasy enables the integration of serial protocols using EasyLink (RS232 API tool). Therefore, the Digiplexer 246 could control and monitor an FM amplifier using a serial cable. Scripteasy also allows for the integration of the SNMP MIB of an external piece of equipment, and execution of the GET and SET commands via IP. Custom views for remote monitoring and control can be created with Masterview software.