Model Q24Soft is a full featured realtime audio processing software specifically designed for audio production professionals, broadcasters and Internet radio. It makes sound livelier, crispier, detailed, cleaner, and louder, using our world class pedigree in audio signal modeling and signal processing algorithms. A two in one audio processing platform featuring both 24 band dynamics pre-processor and a new automatic noise reduction solution. High level of configurability and available unique audio conditioning tools make it easier for radio stations and other broadcasters to attract and hold listener’s attention. Moreover, it accomplishes this without introducing any distortion to the sound.

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DYNAMIC RANGE COMPRESSION

Multiband Dynamic Compression is an integrated 24-band Dynamics Processor. Driven by the principles of Psychoacoustics, it employs completely linear phase signal processing. The integrated processing engine performs compression, limiting, expansion and noise-gating in a single processing block. Intelligent control over the operating points using a desired spectral balance or a signal-adaptive characteristics, is employed. To change the dynamic range in different bands individually, this module is provided with greater functionality than any other product available in the market. At the heart of the processor is a specially designed filterbank for generating an extremely detailed time-frequency representation of the signal.

ADAPTIVE WIDE BAND NOISE REMOVAL

Model Q24 comes bundled with a world class real-time automatic noise control block. The user can choose a few optional parameters and background noises, including dynamic background noises, are automatically identified on the fly and removed from the audio. At a broad level the user can operate the algorithm with two different structures for the noise model:

White Model: For general noise types.

Color Model: For heavy noise reduction of a particular environment such as machine and instruments noise type

VOICE/VOCAL ENHANCEMENT

This module enhances the speech/vocal content of the audio. It uses an accurate harmonic analysis of the input audio, and effectively enhances the vocal content. Using this information input audio sounds cleaner with improved presence. This module is also useful in sports/news broadcast to make the commentators voice more intelligible, where high background audience noise exist.

INTELLIGENT LOUDNESS CONTROL

This module uses a sophisticated stereo loudness measurement algorithm to estimate and control the signal loudness. The control is based on two sliders. The first being the release time, to control how fast the audio loudness should get adapted to desired level. The second slider is for the target output loudness level control, which may be set between 0dBFS and -15dBFS.

ENVELOPE/STEREO PROCESSING

This module controls the stereo balance in the audio. It may widen or shrink the stereo image depending on the characteristics of the stereo audio and the slider setting. This tool helps in maintaining a consistent stereo image which would make audio sound pleasant. A new user can safely set the dial at 0.3.

SIBILANT / FRICATIVE SMOOTHING

Sibilants tend to add to the some of the unwanted harshness in the broadcast audio since the perceived loudness of sibilants is quite high due to their high frequency content. This module dynamically detects the sibilant, fricative sections of the input audio and smoothes these sections. The slider controls include the Start Frequency, which specifies the frequency threshold above which the processing is done; this can be varied from 4 kHz to 8 kHz. The dial controls the intensity of processing done by the algorithm. A new user can safely set the dial at 0.2 and the start frequency at about 6-8 kHz.

DYNAMIC LISTENING FATIGUE REDUCTION

This is an audio sweetening tool that conditions the temporal envelope of the audio signal in multiple frequency bands. The 6 vertical bars below the dial provide finer control over envelope conditioning in individual frequency bands (with indicated center frequency values). The higher the sliders, the more conditioned the audio in that band is. There are two associated slider controls which control respectively the tonal characteristics of overall audio and the refinement level of envelope conditioning.

INCOHERENT COMPONENT SUPPRESSION

This module detects the incoherent components of the input audio and smoothes the corresponding audio component resulting in a sound that is easier to process by the human auditory perception system, thus increasing the listenability of the sound. The slider controls for this module include a Start Frequency, which specifies the frequency threshold above which the processing is done; this can be varied from 4 kHz to 8 kHz. The dial controls the intensity of processing done by the algorithm. A new user can safely set the dial at 0.2 and the start frequency at about 6-8 kHz.

MULTI-BAND GRAPHIC EQUALIZER

This module equalizes the audio in 10 bands according to the 10 slider setting. For all the slider at the middle of the range equalizer is effectively flat. Each slider can be moved between -5dB and 5dB. There are three options in the form of buttons, namely Tight Coupling, Loose Coupling and No Coupling, supported for coupling the sliders.

Multi-band Intelligent Dynamic Range Compression (DRC): High resolution 24 band processing using detailed time-frequency model.
Look ahead Loudness Management: Multiband Loudness Control.
Adaptive Wide-band Noise Removal: Automatic noise detection and two band filtering with optional color noise model.
Voice/Vocal Enhancement: Enhances speech in voiceovers and vocals in music using detailed harmonic analysis.
Sibilant/Fricative Smoothing: Automatically detects sibilants and applies configurable smoothing.
Envelope/Stereo Processing: Multiband envelope conditioning, envelope enhancement, stereo conditioning for reduced listener fatigue and a sweeter sound.
FM PreEmphasis: Available 50/75 micro-sec preemphasis tool with look ahead limiting.