Quiet Audio Needing Normalization
A very quiet modulated tone (~peak 0.04) for testing loudness normalization and gain staging.
Specifications
- Sample Rate
- 44100
- Channels
- 1
- Duration Sec
- 1.5
- Peak Approx
- 0.04
- Suite
- audio-repair
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
“Quiet Audio Needing Normalization” is a deterministic Novus Examples fixture for Audio analysis. Pure tones, sweeps, and noise with known frequencies and levels for testing spectrum, level, and waveform tools.
Documented properties for this file: 44100 Hz · 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="quiet-needs-normalization.wav"></audio>Related files
- wavClipped Tone — intentionally clipped (WAV)A 440 Hz tone driven past full scale and hard-clipped so its peaks are flat-topped — an intentionally clipped signal for testing clip and true-peak detection, distortion metering, and de-clipping tools.
- 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.
- wavMelody — C Major Scale (WAV)A two-second melody playing an ascending C-major scale (C4 to C5) with per-note envelopes — a simple musical signal for testing pitch detection, onset detection, and playback.
- wavNotification Chime (WAV)A short four-note notification chime (a C-major arpeggio with a decaying final note) — a pleasant, recognisable UI sound for testing playback, short-clip handling, and notification pipelines.
- wavStereo Channel Imbalance (440 Hz)A 440 Hz stereo tone with a loud left channel and a near-silent right channel — for balance and mono-mix testing.
- wavTone with Click/Pop TransientA clean 440 Hz tone interrupted by a short high-amplitude click at 0.4s — for click/pop removal tools.
Generated by generation/audio_b2_extras.py. Free for any use, no attribution required — license.