Sondra: Audio & Video Tools

Sondra puts 15 everyday audio and video tools in one app. Remove background noise from a voice memo, make a video small enough to send, cut out a part, or have a text read aloud. Your files are processed right on your iPhone. CLEAN UP THE SOUND • Remove background noise: a speech denoiser (AI) that reduces hum, fans, traffic and room noise while keeping the voice, plus a gentler mode for music or several speakers. Works on audio and on the sound of a video. • Make a quiet recording louder. • Remove silent pauses from a talk or a lecture. VIDEO TOOLS • Make a video smaller so it is quick to send. • Cut out a part, speed up or slow down, join files into one. • Get the sound from a video as MP3 or M4A. • Turn a video into a GIF, a GIF into a video, or take a picture from a video. • Check a video's resolution and frame rate. RECORD AND READ ALOUD • Record with the microphone, then clean up the noise in one go. • Read text aloud with the iPhone's voices in many languages, or download natural English voices (about 110 MB, once). • Turn audio into a video you can post anywhere. • Read along: words light up as they are read; tap one to hear it again. WORKS THE iPHONE WAY • Share a video from Photos or a file from Files straight to Sondra. • Save results to Photos or share them to any app. • Long-press the app icon for quick actions. • Works with Siri, Shortcuts, Control Center and the Lock Screen. PRIVATE BY DESIGN • Files are processed on your iPhone and are not uploaded. Most tools work without an internet connection. • No account, no ads, no watermark, no in-app purchases. • Nothing is sent automatically. A problem report is sent only if you review it and tap Send. GOOD TO KNOW • Noise removal is made for speech. It does not separate vocals from music. • Long or 4K videos take longer on older iPhones. Sondra also runs in your browser at sondra.app and as a desktop app. Questions and ideas: hello.sondra.app@gmail.com