SOUND4 PULSE Fields of Application

The SOUND4 PULSE is a three-band processor and the smallest device in the FM product line. It is particularly well-suited to the following uses:

• For small radios, as a principal processor. It is fully compliant with radio broadcast standards while at the same time having a strong, clear and balanced sound.
• For transmitter finalization, with a SOUND4 PULSE located in the studio. All radio standards are met.
• For radios seeking natural but powerful tonalities.
• As a web radio processor, thanks to its algorithms, specially optimized for this kind of application. Furthermore, its low cost makes it affordable for any radio station wishing to set itself apart from other stations.
• As a small standby processor.

The SOUND4 PULSE can thus be used as an audio broadcaster thanks to the PCIe entry driver, as a processor thanks to the processing functions and as an Audio streamer thanks to the streaming option.

A Highly Versatile Processor

The SOUND4 PULSE is the first small processor that has been specifically developed for new radio markets. The outputs can thus be used simultaneously for FM and HD, DAB, DRM or, of course, WebRadio.

An Integrated Backup Solution

Much more than a mere processor, the SOUND4 PULSE has Audio Backup functionalities. Due to the capacity of its hard disk to store audio files, it is the first processor that guarantees continuity of the on-air program, solving the problem of radio silence.

An Integrated Basic RDS Encoder

In addition to being a high-quality processor and offering a backup audio source, the SOUND4 PULSE also provides the option of a basic or a full RDS encoder, the latter being UECP-compatible.

Fully Compliant with All Standards

With the SOUND4 PULSE, clients can be sure that they have a product which meets the various radio broadcast standards worldwide. It thus fulfills the following criteria:

• Excursion in frequency - once the output level is fixed at 75kHz, it will never go beyond this maximum limit.
• Multiplex Power - valid mainly in Europe, the ITU-R 412 recommendation is applied perfectly in accordance with the requirements of the radio broadcasting authorities.

Software Options Available *

• Basic RDS Encoder
• Full RDS Encoder
• PCI Audio Driver In
• PCI Audio Driver Out
• Streaming Extension
• IP Tx
• IP Tx2
• IP Rx
• IP Rx2
• IP RX + Tx
• Dual IP Tx + RX
• IP Pass Through
• Breakout cable for FM/HD processors and IP CONNECT (PCIe In-Card)

* All Software Options are subject to an additional payment. For pricing please Contact Us.

The SOUND4 PULSE PCIe card

• 100% autonomous in terms of resources - the card only requires power from the PC.
• 4 inputs - AES from 32 to 192 kHz, analog, IP (Livewire or SOUND4 IP CONNECT) and PCI (audio driver).
• Mixing of inputs and automatic safety function.
• 5 simultaneous and independent outputs - TX1, TX2, AES, Analog IP (Livewire or SOUND4 IP CONNECT) and PCI (audio driver).
• Routing of signals for outputs.
• Relay switch for automatic by-pass.
• Digital AES/EBU synchronization input.
• DSP computing power - 4 Giga Flops (Sharc 40 bits with floating point).
• GUI and driver compatible 32 & 64 bits - Windows 7, Windows 8 & 8.1, Windows 10, Windows 11, 2008 R2, 2012 and Linux (Debian)
• Multicard driver (the quantity of PCIe slots will be equal to the number of cards admissible in the same PC).
• Start-up time of the SOUND4 PULSE card - 2 seconds max to being on air.
• 100% upgradeable to IMPACT. While updating the card, the sound is interrupted for only two seconds.

User-Friendly Control Interface

• Sound setting from one single screen – you no longer need to open and close windows to go from one function to another.
• Two modes - Basic and Advanced. Basic - provides simplicity and rapidity; Advanced - allows you to explore all of the processor functionalities. There are also ultra-rapid VU meters for true control over modulation.
• Unlimited “Undo/Redo” versioning function for presets with possibility of recall.
• Innovative “compare” function with reference notion.
• Log function for presets.
• A readable and interactive diagram.
• A remote connection manager to control several processors.
• Works with the following operating systems - WXP SP3, W7 32&64 bits, W8 32&64 bits, WS 2008 R2, WS 2012, Linux (Debian).

Processing

• Main sampling process frequency of 192 kHz.
• Sound coloring and stereo enhancement effect (Tone FX and Stereo FX).
• 2-band AGC.
• 2-band process with Fidelity and Sound Impact System (S.I.S.).
• 3-band limiter.
• Look Ahead limiter for the HD outlet.
• MPX power controller (BS412 compliant).
• Stereo Matrixing for more stability in loudness and sound tone when the receiver switches from mono/stereo/mono.
• 19 kHz embedded pilot to gain close to 1 dB more in loudness.
• Delay - 30 ms for FM path, 11 ms for HD path.

Extra

• Basic RDS encoder (with scrolling PS)
• Full RDS (UECP-compatible)
• IP Codec - SOUND4 IP Connect
• Audio Backup - thanks to the audio driver
• Audio streaming - 6 encoders (MP3, AAC, HE-AAC v1 & v2), compatible with all delivery servers (Icecast, Shoutcast v1 & V2, Flash, Wowza)
• Replication of inputs
• Link & Share - 100% of all parameters are accessible via the telnet protocol
• Panels – the device allows you to create your own panels with unlimited functionality
• Preset Sharing - the ultimate solution to managing an unlimited number of processors. All of them are automatically updated if a one of them is modified.

Input State

The SOUND4 PULSE has four inputs - Digital, Analog, IP (Livewire or SOUND4 IP Connect) and PCI.

On the software interface, the input currently in use is indicated by a triangle on the left side of its name.

2-Band AGC

With the SOUND4 PULSE, the first processing function is the 2-Band AGC - automatic gain control whose main purpose is to stabilize the loudness level applied to the input of the processor and prevent noticeable level differences between recent and old titles.

Tone FX

The Tone FX makes coloring of sound before dynamic processing possible. To do so, it groups together two types of processing functions:

• A 4-band parametric equalizer;
• An effect system making it possible to strengthen low frequencies and high frequencies.

The two functions offer results that are entirely different, which is why they are gathered on one single screen.

In Basic mode, use of the four parametric equalizers is simplified to the maximum. Only the gain for each correction is accessible. For FX Bass and FX Treble, dosage of the effect is also made accessible.

In Advanced mode, users have access to all equalizer parameters (gain, frequency and Q factor).

Stereo FX

SOUND4 PULSE has a true stereo enlarger, 100% mono-compatible. Its role is to sublimate the existing stereo image. It will thus never create stereo in mono sources.

In addition to embellishing the stereo image, it also has a 3-band stereo image limiter acting on the control of the energy transmitted by the stereo sub-porter at 38 kHz. This unique functionality limits issues currently caused by the traditional enlargement processes. The stability of reception in areas disturbed by multiple routes is thus greatly optimized.

The 3-Band Process

The 3-band Process is the heart of dynamic processing. With SOUND4 PULSE, a single algorithm guarantees the gain in each of the bands in order to complete sound stabilization. “Coloring” is controlled by the Fidelity parameter. Thus, it is possible to have a purist and a colored sound texture.

The 3-band Process is achieved through the revolutionary algorithm S.I.S. (Sound Impact System), which makes it possible to maintain the authenticity of the original sound attacks.

The 3-Band Limiter

The main purpose of the 3-band Limiter is to prepare the work of the final limiter. It is also provided with a very powerful predictive algorithm, which has been simplified to the maximum, so that it is not encumbered with useless parameters.

The Final Limiter

The Final Limiter comprises two sections - one for FM applications and one for HD applications.

The FM Section consists of a Bass Clipper, guaranteeing powerful bass without distortion, an FM limiter and an MPX limiter.

The HD Section is specifically designed for high quality digital applications (HD/DAB/DRM). This is a look-ahead type of limiter and in this mode the outputs are not limited to 15 kHz.

Assignment of Outlets

The outlets of SOUND4 PULSE are fully assignable. For example, the analog outlet may replicate the signal which is applied to the analog input, the digital outlet delivers an HD signal, the TX1 outlet delivers the MPX signal and the TX2 outlet drives the 19-kHz pilot signal.

SOUND4 PULSE PCIe is offering as an option the Kantar Media Audio Watermarking Technology for audience rating. Today and depending on the countries, radio stations can be listened to on FM, DAB, Streaming, polling companies need to know the audience results for each of the media.

The SOUND4 PULSE PCIe is the most advanced watermarking processor, it can tag up to 2 different feeds:

• 1 for the HD/FM output
• 1 for the streaming encoder

In the SOUND4 PULSE PCIe, watermarking is always carried out at the end of the processing chain to guarantee maximum watermarking quality.

About Kantar Media watermarking technology

SNAP audio watermarking technology by Kantar has been designed for TV and Radio audience measurement. In addition, it can also be used for the synchronization of second screen application. SNAP watermarking carries 2 types of information, a channel identifier and a timestamp for linear content and a timecode for non-linear content.

Audio watermarking technology can be described by 3 main properties which are the inaudibility of the watermarking, the amount of data carried by the watermarking and the robustness of the watermarking.

The SNAP technology remains inaudible thanks to a very complex acoustic model and preserves the quality of the sound. This is a crucial property for TV channels and Radio stations that spend time and money to get the best quality for their sound. Regarding the amount of data, the SNAP technology proposes a single payload for Channel and Content identification. Robustness of SNAP watermarking to broadcast chain is also a key element. SNAP is robust to low encoding bitrates, and to adaptive bitrates. Don’t hesitate to contact Kantar support to get bitrate recommendations depending on the audio codec.