Audio & Music

Compress one local audio file to MP3 with chosen bitrate and channel handling, then verify playback settings and actual size savings.

Estimate audio file and session storage from PCM settings or encoded bitrate with multitrack counts, media-fit checks and a planning buffer.

Convert local audio for playback or lossless storage with preservation-first profiles and verified codec, sample rate and channel output.

Normalize a local mono or stereo audio file toward a LUFS target, with gated loudness measurement and a sample-peak-safe WAV result.

Join two to eight local audio clips in order, add optional silence, preview every seam, and download one verified 16-bit PCM WAV.

Edit common MP3 tags and front-cover artwork in your browser, then download an ID3v2.3 copy with the encoded audio left unchanged.

Change audio speed from 0.50× to 2.00× in your browser with pitch-preserved or tape-style retiming, then preview the result and save a WAV.

Trim a local audio file to an exact interval with optional edge fades and a preview, then download a verified PCM WAV without uploading.

Combine local audio with a still image or solid color to create a verified MP4 in landscape, square or portrait format without uploading media.

Convert pressure or power ratios to decibels and solve dB levels back to voltage or amplitude quantities with fixed and custom references.

Build a browser-based sleep masking sound with colored-noise recipes, adjustable filters and a conservative relative-volume cap plus timers.

Tap a rhythm to estimate quarter-note BPM, compare instant and rolling tempo, and judge timing stability from jitter and drift.

Set a metronome pulse and build a bounded practice ramp with tap tempo and swing timing plus beat-duration tables and local audio playback.

Extract one audio track from a local video as compatible MP3, editable WAV, or copied original packets with post-conversion verification.