FNam FFT Spectrogram Analyzer vs WaveTone Studio

■ FNam FFT Spectrogram Analyzer Engineers need tools that are ready to use — anytime, anywhere. FNam FFT Spectrogram Analyzer turns your smartphone into a professional audio analysis tool. Unlike typical sound meter apps, it delivers advanced features like Dual File Comparison and CSV Export for precise post-analysis * completely free, no ads. Real-time FFT & Spectrogram / All processing runs on-device / No audio data uploaded externally. [Video Guide - See it in action] https://youtu.be/72SYLTG0l_8 ■ NEW FEATURES 1. Octave Band View Mode - Analyze sound levels by octave bands. - Choose 1/1 or 1/3 octave band resolution in Settings. 2. Sound Event Logger - Automatically logs sound events when the level exceeds a set threshold. - Can save event WAV files and FNam JSON logs for later review. - Includes a screensaver mode to reduce screen burn-in. ■ KEY FEATURES 1. Real-time Audio Analysis • High-precision FFT (Fast Fourier Transform) Graph. • Time Domain Waveform (Oscilloscope) view. • Fluid Spectrogram for visualizing frequency changes over time. 2. Dual File Comparison (Exclusive Feature) • Simultaneous loading of two WAV files for comparative analysis. • Spectrum Overlay: Visually compare differences using color-coded traces (Blue vs. Magenta). • Instant Calculation: Provides Arithmetic Mean and Mean Difference between signals. 3. Data Logging & Export • Flexible Sampling Rates: Supports various rates (4000Hz, 8000Hz, 16000Hz, 22050Hz, 44100Hz). • High-quality Recording: Audio is recorded and saved as WAV files, strictly matching the selected sampling rate. • Raw Data Export: Exports raw PCM data to CSV format. The exported data maintains the exact sampling rate and duration, making it optimized for post-processing in Excel, MATLAB, or Python. • File Management: Files are stored in the 'On My iPhone\FFT Analyzer' directory. - WAV naming format: Date_Time_SampleRate_Channel.wav ex) 20260219_164715_44100Hz_Mono.wav - CSV naming format: Selected WAV file name_SampleRate_Duration(s).csv ex) 20260219_164715_44100Hz_Mono_44100_5.2s.csv 4. Professional Configuration • Window Functions: Selectable Rectangular, Hann, Hamming, and Blackman windows. • Frequency Weighting: Supports A, B, C, and Z (Linear) standard weighting filters. • Axis Control: Supports both Auto-scaling and Manual range settings (Hz / dB) for precise graph inspection. • Calibration: Independent offset controls for FFT and Time Domain to ensure alignment with professional reference equipment. • Max Peak Hold: Displays and holds the maximum amplitude values across the frequency spectrum. • Octave Band View Mode: Visualizes frequency levels as octave band bars for easier band-by-band analysis. ■ TECHNICAL SPECIFICATIONS • Signal Processing: Anti-aliasing filters are automatically applied during downsampling to ensure measurement accuracy. • Sampling Rate: Supports standard rates up to 44.1kHz (device dependent). • Standards: Implements IEC 61672 frequency-weighting formulas for A/B/C weighting calculations. Note: This app implements IEC 61672 frequency-weighting formulas. Measurement discrepancies compared to professional equipment may occur due to the hardware frequency response limitations of the built-in smartphone microphone. For critical measurements, the use of a calibrated external microphone is recommended.

WaveTone Studio is a powerful mobile audio studio for iPhone and iPad. Import audio and video files, record directly with the microphone, edit waveforms precisely, and export results for music, clips, podcasts, ringtones, or quick audio ideas. Import MP3, WAV, M4A/AAC, AIFF, CAF, OGG, OGA, and Opus. You can also select compatible MOV, MP4, and M4V videos from Files or Photos. WaveTone Studio automatically extracts the audio track and loads it into the editor. Your audio is displayed as a clear waveform with zooming, scrolling, and a playhead. Pinch-to-zoom stays centered between your fingers. Place the playhead anywhere and start playback from that exact position. Selections show their start, end, and duration directly in the waveform, and both selection handles can be dragged for precise adjustment. A compact mini waveform remains visible while you scroll through the editor. Select ranges, select all, delete, trim, copy, paste, fade in or out, and adjust gain. VU meters with clipping indicators help you monitor levels. Silence Trim, Noise Reduction, and De-Click help clean up unwanted passages. Creative and technical tools include Pitch, Speed, Crossfade, EQ, Reverb, Delay, Normalize, Limiter, and generators for silence and noise. Export in common audio formats with options for bitrate, sample rate, and channels. Ringtone ranges can be selected, moved, previewed, and exported directly in the editor. Share or save finished files through the iOS share sheet. WaveTone Studio is made for musicians, content creators, podcasters, DJs, editors, and anyone who wants to edit audio quickly and precisely on a mobile device. Free features: - Audio and video import - Audio extraction from videos - OGG, OGA, and Opus import - Microphone recording - Waveform with zoom, scrolling, and position-accurate playback - Draggable selection handles with time labels - Delete, copy, paste, trim, fades, and gain - Standard export - Ringtone export up to 10 seconds Included with Pro: - MP3, WAV, CAF, and ALAC export - Ringtone export up to 30 seconds - Pitch, Speed, and Crossfade - Reverb, Delay, and EQ with presets - Normalize and Limiter - Silence Trim, Noise Reduction, and De-Click - Insert silence and generate noise