HEADPHONES CONNECT AlphaTheta vs SonoSpec

Make your AlphaTheta DJ headphones "HDJ-F9" truly yours. HEADPHONES CONNECT is a customization & settings app dedicated to the HDJ-F9. Freely customize the color and brightness of the Status LED from your smartphone. Express your own style with your headphones to match your mood, events, playlists, and play style. You can also easily configure various features in the app, such as editing the headphone name, setting auto power-off, and enabling voice assistants (Siri®). The "Find Headphones" feature lets you locate nearby headphones by sound. The app also includes support features for updating firmware and checking usage tips, so you can use your headphones with confidence and comfort. Key Features ・Customizable Status LED color/lighting state ・Personalize headphone name ・Check battery level ・Turn Auto Power Off on/off ・Activate/Stop Voice Assistant ・Find Headphones ・Firmware updates Compatible Models: HDJ-F9 Support for future models will be added. HEADPHONES CONNECT app is not compatible with HDJ-F10. If you are using HDJ-F10, please use the dedicated app "AlphaTheta HDJ-F10 Updater".

SonoSpec turns your iPhone or iPad microphone into a beautiful real-time audio spectrum analyzer. Built for car-audio tuning, room acoustics, HVAC and machinery noise hunting, speaker testing, and anyone who wants to SEE what they're hearing. FOUR VIEWS, ONE INSTRUMENT • Spectrum — live FFT trace with peak hold and a log-frequency grid • Waterfall — scrolling spectrogram that makes tones, sweeps and rattles obvious • Split — spectrum and waterfall together • Octave — 31-band 1/3-octave RTA bars MEASUREMENT-GRADE DETAILS • FFT sizes from 2,048 to 16,384 points (5.9 Hz resolution at 48 kHz) • A, C and Z weighting curves computed per the IEC 61672 formulas • Exact base-10 1/3-octave bands per the IEC 61260 definitions • Peak-hold trace with slow decay, pause/hold, and a drag cursor that reads out the exact frequency and level under your finger • Levels in dBFS with a proper full-scale sine reference and window-bandwidth (ENBW) correction — the numbers mean something BUILT-IN SIGNAL GENERATOR • Pink noise, white noise, sine, log sweep and warble tones — the source half of the RTA workflow • Feed the system under test by cable or USB and watch the response live TARGET CURVES • Overlay a house curve — flat, −3 dB/oct tilt, or a bass-lifted car target — on the live spectrum • Auto-fit positioning: the shape snaps to your measurement, no fiddling SNAPSHOTS & EXPORT • Freeze a measurement and recall it as a ghost overlay for before/after comparison • Share a publication-ready image or CSV with a full metadata header — FFT size, window, weighting — so your data still means something later TUNED TO FEEL LIKE HARDWARE Rendering runs on a dedicated Metal graphics path at the full analysis rate, with a phosphor-and-ember instrument look that's readable at arm's length. On iPad it fills the screen and adapts to Split View and Stage Manager windows. PRIVATE BY CONSTRUCTION Audio is analyzed on-device and never recorded, stored, or transmitted. SonoSpec has no accounts, no ads, no analytics — the app cannot even access the network. One-time purchase. No subscriptions.