Frequency Generator vs Audio Extractor

Say goodbye to muffled audio and trapped liquid with Sound & Frequency Test, the ultimate audio companion for your iPhone. Whether you need to eject water from your device’s speakers, test your audio equipment's performance, tune an instrument, or explore the limits of human hearing, this app delivers studio-grade accuracy with a stunning, modern dark design. Our app utilizes a custom, manually-scheduled PCM buffer loop to generate pure sine-wave tones with sample-accurate precision. Enjoy seamless frequency sweeps without pops, clicks, or distortions. KEY FEATURES: 1. AUTOMATIC WATER EJECT & SPEAKER CLEANER Accidentally dropped your phone in water? The dedicated Water Eject mode uses a scientifically proven 165 Hz frequency to vibrate the speaker diaphragm, effectively expelling trapped water and restoring crystal-clear sound quality in just 30 seconds. 2. PRECISION TONE GENERATOR Produce pure sine waves across the full spectrum of human hearing, from a deep sub-bass 20 Hz to a high-pitched treble 22,000 Hz. Adjust the frequency smoothly using the logarithmic slider or precise manual controls to suit your audio needs. 3. REAL-TIME NOTE DETECTION Curious about what musical note you’re playing? As you adjust the frequency, the app automatically calculates and displays the corresponding musical note name and octave in real-time (e.g., A4, C0). 4. ONE-TAP SOUND PRESETS Instantly jump to standard reference frequencies: • Water Eject (165 Hz) — Vibrate and clear your speakers. • Bass Test (60 Hz) — Test subwoofers and low-end responses. • Mid Test (1,000 Hz) — Check mid-range audio clarity. • Treble Test (8,000 Hz) — Check high-frequency performance. • Concert A (440 Hz) — Classic standard tuning pitch for musicians. 5. AMPLITUDE & VOLUME CONTROLS Fine-tune the output intensity of the generated frequencies directly in the app. Combined with visual representations of the audio waves, you maintain full control over your acoustic experience. 6. SAFETY WARNING SYSTEM & USER EDUCATION High-frequency tones can be intense. We prioritize your hearing safety by incorporating an in-app safety guide and automatic volume warnings to prevent hearing damage. PRACTICAL USE CASES: • Speaker Restoration: Clean your phone's speaker grill after water exposure, dust accumulation, or lint blockages. • Audio Equipment Testing: Check the frequency response of headphones, earbuds, home studio monitors, subwoofers, and Bluetooth speakers. • Instrument Tuning: Use standard reference tones like Concert A (440 Hz) to tune guitars, violins, pianos, and other instruments. • Sound Projects & Experiments: Ideal for acoustics study, physics demonstrations, and sound-wave analysis. • Hearing Assessments: Explore your personal upper and lower hearing thresholds.

Audio Extractor: MP3 Convertor — Turn Any Video Into High-Quality Audio Need just the sound from a video — a song, a lecture, a podcast clip, a recorded meeting? Audio Extractor: MP3 Convertor pulls clean, high-quality audio out of any video in seconds, right on your iPhone or iPad. COMMON THINGS PEOPLE USE THIS FOR - Saving a podcast or interview from a video as a standalone audio file - Turning a recorded lecture or meeting into audio you can listen to later - Pulling music or a soundtrack out of a video clip - Making a custom ringtone or notification sound from a video - Getting just the audio from a long video without the file size of the video ENTIRELY ON YOUR DEVICE Audio Extractor: MP3 Convertor processes every conversion locally, using your device's own media engine — nothing is uploaded to a server. Your videos and the audio you pull from them stay private, and conversion works even without an internet connection. 5 OUTPUT FORMATS, REAL QUALITY CONTROL Choose exactly the format and quality you want: - AAC (M4A), WAV, MP3, FLAC, or OGG - Bitrate control — 64, 128, 192, 256, or 320 kbps, or match the source - Sample rate control — 22.05, 44.1, or 48 kHz, or match the source - Mono or stereo output Most video-to-audio apps hand you one format and no real options. This app gives you the kind of control a dedicated audio converter would, without needing a second app. TRIM BEFORE YOU CONVERT Only need part of the video? Preview it right in the app and use the filmstrip-style trim slider — drag the in and out points, scrub through thumbnails, tap anywhere to jump to that moment — and convert only the exact section you want. No separate cutting step required. CONVERT MULTIPLE VIDEOS AT ONCE Select several videos, apply the same format and quality settings, and convert them together. You'll see an overall progress indicator plus the real status of every individual file — and if one file can't be converted (no audio track, unsupported content), the rest of the batch keeps going instead of stopping. A COMPLETE AUDIO WORKFLOW - Built-in player — play any converted file with seek and 10-second skip forward/back, right inside the app - Share any converted file, or a bundled batch, through the share sheet - Save converted files to any location you choose - History — every past conversion, searchable and sortable by date, name, or size - Recent conversions shown right on the home screen for quick access WORKS WITH VIRTUALLY ANY VIDEO Supports MP4, MOV, AVI, MKV, WMV, FLV, 3GP, WEBM, and M4V as input. Corrupted or protected files are handled with a clear message instead of a crash. CLEAN, SIMPLE DESIGN Light, Dark, and System theme support. See how much storage your converted files are using, and clear them in a tap when you want the space back. WHO IT'S FOR - Anyone who wants the audio from a video — music, interviews, lectures, podcasts, voice memos, or clips - People who need a specific format for compatibility or quality, not a one-size-fits-all output - Anyone converting a batch of videos at once instead of one at a time - Anyone who wants to trim first and convert only the part they need Download Audio Extractor: MP3 Convertor and turn any video into exactly the audio file you need — fast, flexible, and entirely on your device. Terms of use: https://codifyappsprivacy.blogspot.com/p/terms-of-use.html