Leading Silence 1s — 440 Hz Tone
A 440 Hz tone preceded by exactly 1 second of digital silence. A direct fixture for auto-trim tools — the tone should start at 1.000s.
Specifications
- Sample Rate
- 44100 Hz
- Bit Depth
- 16
- Channels
- 1
- Leading Silence Sec
- 1
- Tone Sec
- 2
- Total Sec
- 3
- Silence Range
- 0.000s–1.000s
- Tone Range
- 1.000s–3.0.000s
- Frequency
- 440 Hz
What is a .wav file?
WAV (Waveform Audio) is a RIFF-based container that typically holds uncompressed linear PCM audio, though it can wrap other codecs. Because samples are stored raw, files are large but lossless and simple to read, with configurable sample rate, bit depth, and channel count. It is the standard format for high-fidelity and intermediate audio.
How to use this file
Use an example WAV to test PCM decoding, sample-rate and bit-depth handling, waveform rendering, and audio pipelines that need a lossless reference source.
How to use this file for testing
“Leading Silence 1s — 440 Hz Tone” is a deterministic Novus Examples fixture for Auto-trim testing, Audio analysis. Tones with precisely documented leading and trailing silence timestamps — direct fixtures for auto-trim tools.
Documented properties for this file: 16-bit · 1 ch. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.
Media fixtures are short and synthetic by design. Prefer waveform or transcript ground truth in the same group when measuring ASR, trim, upscale, or sync tools; do not assume broadcast-quality masters.
Code examples
<audio controls preload="none" src="lead-silence-1s.wav"></audio>Related files
- wavLeading Silence 3s — 440 Hz ToneA 440 Hz tone preceded by exactly 3 seconds of digital silence. A direct fixture for auto-trim tools — the tone should start at 3.000s.
- wavLeading Silence 5s — 440 Hz ToneA 440 Hz tone preceded by exactly 5 seconds of digital silence. A direct fixture for auto-trim tools — the tone should start at 5.000s.
- wavTrailing Silence 1s — 440 Hz ToneA 440 Hz tone followed by exactly 1 second of digital silence. The tone should end at 2.0s — a direct fixture for testing trailing-silence trimming.
- wavTrailing Silence 3s — 440 Hz ToneA 440 Hz tone followed by exactly 3 seconds of digital silence. The tone should end at 2.0s — a direct fixture for testing trailing-silence trimming.
- wavTrailing Silence 5s — 440 Hz ToneA 440 Hz tone followed by exactly 5 seconds of digital silence. The tone should end at 2.0s — a direct fixture for testing trailing-silence trimming.
- wavDigital Silence (2s WAV)Two seconds of true digital silence (all-zero samples) — a fixture for testing silence detection, auto-trim thresholds, and noise-floor handling.
Generated by generation/audio_trim.py. Free for any use, no attribution required — license.