Vocorder vs Easy Audio Spectrogram

A professional audio recorder intended for acousticians and sound research. Freely customisable options and powerful but with a simple interface. Features -------- Zero Signal Processing ↳ Signal is truly raw and pure ↳ No noise reduction, signal gain or audio compression ↳ Ideal for ML training & classification ↳ Great for high fidelity recording Simple Interface ↳ Record immediately when opening app ↳ Huge record button; too big to miss ↳ SPL graph to provide real time feedback ↳ Screen kept on while recording to prioritise recording ↳ Buttons disabled while recording to prioritise recording Playback ↳ Visual waveform of recordings for clarity ↳ One tap to play, share (email, AirDrop), rename or delete ↳ Audio scrubbing to navigate within recording ↳ Playback volume booster for quiet recordings ↳ Recordings available in native Files app for manipulation Parameters ---------- Recording Mode ↳ Measurement - zero signal processing ↳ Default - iOS typical audio processing Microphone ↳ iPhone - Front (Earpiece), Bottom (Left speaker grill), Back (Camera module) ↳ iPad - Top (Between camera and headphone jack), Back, Front ↳ Mac - System input Sample Rate ↳ 44.1 kHz (Typical) ↳ 48 kHz (Studio) Audio Channels ↳ Mono ↳ Stereo Recording Format ↳ 16bit Integer ↳ 32bit Integer ↳ 32bit Float ↳ 64bit Float Recording Container ↳ WAV (Typical) ↳ CAF (Apple) Gain Override ↳ 0.1 - 1 steps

Easy Audio Spectrogram is a simple real-time audio visualizer for microphone input. It shows live spectrogram and frequency spectrum views, helping you explore voices, instruments, music, room noise, and everyday sounds. The app is built around readability. Instead of adjusting gain values in the blind or fight a fixed color range, Easy Audio Spectrogram lets you adjust the graph’s dynamic range in real time. Use the live spectrum display as a guide, drag the color scale to the range you care about, and instantly get a clearer spectrogram. For music and voice, the app includes a note-based frequency scale and real-time pitch detection, making it easier to see sung notes, instrument pitch, harmonics, and resonance as they happen. The interface is minimal and comfortable to use in any orientation, even upside down. Text and icons rotate, but controls stay where they are, so the app remains easy to use whether the phone is in your hand, on a table, or pointed toward a sound source. You do not have to understand what's an FFT to use this app, the default setting works well and engineering settings have been translated to understandable concepts. You can save clean spectrogram screenshots directly from the app, without the buttons covering the image and without pressing hardware button combinations. This app is free to use, free of pop-ups or advertisement banners, use it to explore music or the science of acoustics. Additional Features: -Noise profile removal, hold the button to record a profile, release to activate. -Analyze harmonics in real time with multi-touch. -Psychoacoustic filter to make the graph reflect perceived sound signature rather than flat physical reality. -Optimized performance for many hours of use without heating up your device or draining the battery.