Decibel vs Room EQ Wizard

Decibel provides customizable real-time audio metering for sound engineers and video makers, and can also analyze tracks offline. Its modules measure loudness (LUFS), dynamics (TrueDyn), true peak, RMS, frequency content, and stereo phase. Users can drag a track into the app for offline analysis and export measurement statistics. Available analysis views include LUFS, histogram, spectrum, spectrogram, VU, digital meter, phase scope, stereo cloud, and super meter. Decibel comes as 64-bit AU, VST3, and AAX plugins, plus a standalone version. The product page lists compatibility with Pro Tools, Cubase, Logic Pro X, Ableton, Studio One, and Luna, as well as Premiere Pro; DaVinci Resolve and Final Cut Pro are described as coming soon. It can connect unlimited iOS and Android displays over Wi-Fi or USB for real-time metering. Decibel is listed for Windows, macOS, iOS, and Android. The maker says it complies with ATSC A/85, EBU R128, Netflix, and DVD/Blu-ray broadcast standards. Licenses are perpetual and include free updates, with no subscriptions.

Room EQ Wizard (REW) is measurement and analysis software for working on listening-room, studio, and home-theater acoustics, speaker and subwoofer placement, audio-chain performance, and EQ. It measures frequency response and distortion with logarithmic swept sine signals and supports USB or analog measurement microphones and SPL meters. Its views include impulse and step responses, energy-time curves, spectral decay, waterfalls, spectrograms, reverberation times, distortion, phase, group delay, and real-time analysis. REW's signal generator produces tones, sweeps, bursts, and noise, among other signal types, with WAV export. Its EQ tools identify response peaks, assign filters, optimize filter parameters, and display predicted EQ waterfalls live. The Room Simulator supports up to eight subwoofers. The free plan includes single-channel capture, measurement, real-time analysis, and EQ tools. REW runs on Linux, macOS, and Windows.