Audio RTA vs Bhav Harmonium

See the live sound spectrum, find frequency peaks and test your speakers with a practical audio toolkit on your phone. For musicians, sound technicians and installers working with PA systems, studios, instruments and car audio. Use the microphone spectrum as a visual aid when checking sound; the app does not automatically equalize your system. Free basic tools: • Real-time microphone RTA/FFT spectrum • Approximate dB level meter • Frequency generator from 20 Hz to 20 kHz • Subwoofer and stereo channel tests • White noise for general testing Audio Tools Pro is a one-time purchase for lifetime access to advanced tools: waterfall/spectrogram, third-octave bands, manual dB offset, PNG/CSV exports, pink noise and advanced waveforms and sweeps. Access stays linked to your store account. Measurements depend on your device microphone and hardware. Manual dB offset aligns readings to a reference meter; it does not provide certified calibration. Use low volume to protect hearing and equipment. The app does not replace a certified sound-level meter or measure calibrated loudspeaker frequency response. Audio analysis runs on your device; purchases require a connection. The store shows the current Pro price.

BHAV HARMONIUM brings a digital harmonium to your iPhone and iPad. Sing a bhajan, explore a melody, or settle into daily riyaaz with a spacious keyboard and thoughtful practice tools. PLAY YOUR WAY Choose warm or bright reed tones. Add an octave coupler, sustain notes after release, or use latch mode to hold notes while you sing. Show Sargam or Western note labels, or hide labels for a simpler keyboard. FIND YOUR SA Choose your root note, hear a pitch reference, and follow the swaras. Adjust the reference tuning to suit your practice. A STEADY FOUNDATION Support your singing with a Sa, Pa, or custom drone. Practice with an adjustable metronome, tap tempo, and beat cycles of 4, 6, 8, or 16. MADE FOR EVERYDAY PRACTICE Enjoy a landscape keyboard, light and dark appearances, and a focused full-screen mode. Your latest settings are remembered automatically, so your instrument feels familiar each time you return. Sound is generated directly on your device. No internet connection or microphone is needed to play. Part of the Bhav suite.