Audio Waveform Image

• Choose local audio files of a supported format.
• Review numbered file order when multiple inputs are allowed. Adjust the operation settings and stay within the displayed resource limits.
• Choose Process audio, read the resulting duration/format and scope note, then download the result. Cancel and Reset stop work and clear results.

Export a min/max sample waveform as PNG with one band per channel.

• 128 MiB total input/output, 5 minutes total input duration and output duration, 1–2 channels, 8–96 kHz source rates, and 32 million decoded samples. Processing runs in a cancellable worker with a 120-second deadline.
• Primary audio tracks only. WAV, MP3, Ogg, FLAC, ADTS AAC, and supported MP4/MOV/WebM/Matroska audio tracks are parsed locally; browser codec support varies. No URLs, playlists, microphone or uploads.
• Audio output is 48 kHz, 16-bit PCM WAV with no copied source tags. Resampling and editing may change audio. Samples above full scale are clipped on WAV export and the clipped count is reported. Waveform output is PNG; split output is ZIP of WAV files.
• Peak normalization is sample-peak, not LUFS/true-peak, and amplification is capped at 40 dB. Speed changes also change pitch. Equalizer uses broad first-order bands at 200 Hz and 4 kHz; it is not a precision mastering equalizer. Silence trimming affects leading/trailing samples only.
• Join/mix accepts 2–8 files. Explicit file-order indices resolve ordering. Mono becomes dual-channel when combined with stereo. Crossfades are linear and shorten joins/loops; mixing aligns files at time zero and ends shorter inputs in silence. At most 100 split segments.
• When audio is decoded, tracks with more than one second of decoder priming or overlapping sample timestamps are unsupported. The 32-million decoded-sample work cap includes priming and skipped samples.