Designed for real-time live-sound applications, SysTune is a sophisticated yet exceedingly easy to use measurement system with novel, patent pending features that are especially useful for system tuning and live sound measurements.

SysTune uses newly-developed noise suppression and signal gating algorithms to acquire a room impulse response of five to ten seconds using live program material as the test stimulus. SysTune then processes and updates this data in real time and at high refresh rates.

SysTune's capabilities include (v1.1):

• 8-channel, 8 kHz to 192 kHz sampling rates
• Real-Time data acquisition & display in both time and frequency domains at high refresh rates using live sound, pink noise, sweeps or other stimulus signals
• Real-Time Deconvolution (RTD) for analysis of impulse response and complete frequency response based on a signal channel and a reference channel (Dual-Channel FFT)
• Real-Time Impulse Response, Magnitude, Phase and Group Delay displays
• Newly developed time-frequency-constant (TFC) window to investigate early energy arrivals in detail
• Precise real-time spectrogram display for feedback analysis
• Input spectrum and frequency response of up to 8-channels can be averaged (Multi-Channel-FFT)
• New Spectrally Selective Accumulation (SSA™) filter for improved processing of speech and music signals
• Virtual equalizer to simulate the effect of a DSP controller off-line
• Plug-in interface to allow external software such as for a DSP controller to be used from within SysTune
• Monitor SPL measurements and estimate compliance with local health regulations
• Measured data (Impulse Response) results can easily be exported to EASERA and EASERA Pro for additional post processing and in depth analysis
• Live RT and STI calculations instantly
• SPL, LEQ and NC measurements; Level histograms.
• Coherence and IR stability displays allow quick and easy delay alignment of loudspeakers using real-time impulse response data
• Cursors and overlays for easier comparison of captured curves
• Integrated signal generator for log-sweep and pink noise stimuli of standard FFT time lengths
• Windows Direct Sound, Wave/MME, ASIO audio drivers; interface to EASERA Gateway; Multi-threaded, full support for multi-processor computers

The Pro version of SysTune 1.1 adds the following features:

• Calibration to current and impedance measurements
• Calculation of harmonics in input spectrum
• Noise criteria RC, PNC, NR
• STI signal and noise masking effects according to standard IEC 60268-16 (R2003)
• Channel mapping to allow use of any combination of 8 channels of the soundcard
• Changing curve display properties, such as color, line width and font size
• Playback analysis of recordings off-line, like in a real-time measurement on-site
• Advanced virtual EQ with more functions
• Normative reference for transfer function

Free Demo Version

To download the free AFMG SysTune Demo version click here.

Equipment Requirements

AFMG SysTune runs under MS Windows 2000, Windows XP, and Windows Vista operating systems on PC's with a minimum graphics resolution of 960 x 720; 1024 x 768 resolution is preferred. Windows 95, 98, NT and ME (Millennium) are not supported.

CPU should be at least 1 GHz, working memory (RAM) should be at least 256 MB and at least 1 GB or more of free hard disk space should be available.

A soundcard is required. AFMG SysTune supports all common soundcards with up to 8 input channels, bit-resolutions up to 32 Bit and sampling rates of up to 192 kHz. Windows, DirectSound, Wave and ASIO drivers are supported, If more than two input channels will be used, ASIO drivers are required. For one or two input channels Direct Sound (MSDirectX) can be used as well as Wave/MME drivers (MS Windows Audio-API). See also the Audio Device Information Viewer.

For precision measurements an EASERA GATEWAY high performance AD/DA converter/preamp is recommended.

AFMG SysTune - Developed by AFMG Ahnert Feistel Media Group, the creators of EASE and EASERA - www.afmg.eu