Qu vs Spectrum Eye RTA

Qu-Pad V1.96 for iPad. This version is for Allen & Heath Qu mixers running V1.9* firmware. Qu-Pad provides full wireless control for Qu range of digital mixing consoles giving the engineer the freedom to walk the room or stage and control the mix right where it is needed. Qu-Pad and the Qu mixing console can work together to provide simultaneous control of independent functions, for example one engineer using the console to mix front-of-house sound and another using the iPad to mix monitors on stage. The Qu mixer supports a maximum of 8 connections to iOS devices with up to two of these running Qu-Pad and the others running the Qu-You Personal Monitor app or Qu-Control app, which are also available free from the Apple Store. This version provides full remote control of the Qu including all mixing and setup functions. Requirements: An Allen & Heath Qu-16, Qu-24, Qu-32, Qu-Pac or Qu-SB mixing console running V1.9* version firmware, with a suitable wireless router or access point connected to its Network port. The Qu mixer firmware and Qu-Pad app maintenance version numbers do not need to be identical, for example Qu-Pad V1.95 will run with Qu mixer V1.91. Refer to the Allen & Heath web site for more information and to download the latest Qu mixer firmware.

Spectrum Eye shows the frequency content of what your mic or interface is hearing - smoothly, at high FFT sizes, without freezing the UI. A Lifetime purchase. No Subscriptions. For music professionals, audio engineers, sound technicians, installers, car audio, and audio students. Equally at home as a quick check or a plot you leave running. WHAT YOU CAN DO • Monitor sound quality at concerts and rehearsals • Ring out feedback in stage monitors • Find resonances in rooms, boxes, instruments and cars • Check spectral balance of playback in the studio • Practice frequency-aware hearing • Measure SPL with A / C / Z weighting and Fast / Slow / Leq PLOT • Bars, line, and spectrogram - the configuration button is in the top right corner • Fractional-octave resolution from 1/1 through 1/96 • Line smoothing follows the same octave map • Peak hold with a slow release, optional fill under the line • Find Peak (FP) tracks the loudest band in the visible range • Classic or Overlay layout treats plot area vs scales differently; Overlay is the default • Pan, pinch-zoom, and a live cursor in Hz and dB • Frequency visible range presets (Full 8 Hz–22 kHz, Audio, Lows, Mids, Highs) • Magnitude-range presets • Spectrogram duration, Jet / Viridis / Inferno / Grayscale color palette • Light, Dark, or System appearance, plus a custom plot color • Spectrum update rate: 60 fps Smooth, 30 fps Efficient, or Auto (drops under heat or Low Power Mode) SPL • IEC-style meter: Fast, Slow, and Leq • A, C, and Z (flat) frequency weighting • Per-route SPL offset so you can calibrate against a reference • Yellow / red SPL alarm thresholds per weighting, with UI tinting • Clip indicator and a 30–140 dB level meter bar • iPhone: Large panel in portrait device orientation; in landscape orientation, spectrum is maximized and SPL becomes compact readout in the top bar • iPad: switchable large and compact SPL mode INPUT AND CALIBRATION • Built-in mics (including iPad position / directivity where the device offers them) • External microphones and class-compliant audio interfaces • iOS measurement mode to bypass built-in HPF, EQ, and AGC (recommended) • Import mic correction files (.cal, .txt, .csv) • Per-route mic correction curve and IEC weighting on the live spectrum • Pink noise generator, including with the screen off (Lock Screen / Now Playing) ANALYSIS • FFT sizes 4K / 8K / 16K / 32K (default 16K) • Fall-rate presets: 50 ms, 100 ms, 250 ms, 500 ms, 1 s, 5 s per 6 dB • Nominal capture sample rate - 48 kHz, display ranges from 8 Hz to 22 kHz Audio is processed on the device. Spectrum Eye does not record, store, or upload your audio. Suggestions welcome - the app is in active development. Includes In - app purchases: tips to the developer only. All the functionality is available once you download the app.