wav430.7 KB
Frequency Sweep 20 Hz–20 kHz
A 5-second linear sweep from 20 Hz to 20 kHz across the full audible range — for testing frequency response, spectrograms, and playback fidelity.
Specifications
- Sample Rate
- 44100 Hz
- Bit Depth
- 16
- Channels
- 1
- Sweep
- 20 Hz → 20 kHz (linear)
- Duration Sec
- 5
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.
Related files
- wav1 kHz Sine ToneA pure 1000 Hz sine tone, 3 seconds, 16-bit 44.1 kHz mono — a clean reference signal for level metering, spectrum analysis, and waveform rendering.
- wav220 Hz Sine ToneA pure 220 Hz sine tone, 3 seconds, 16-bit 44.1 kHz mono — a clean reference signal for level metering, spectrum analysis, and waveform rendering.
- wav440 Hz Sine Tone (A4)A pure 440 Hz sine tone, 3 seconds, 16-bit 44.1 kHz mono — a clean reference signal for level metering, spectrum analysis, and waveform rendering.
- wavPink NoiseThree seconds of pink noise with a 1/f power spectrum — the standard reference for loudness and room-calibration testing.
- wavWhite NoiseThree seconds of white noise with a flat power spectrum — a reference for testing noise handling, gating, and spectral tools.
- aacAAC — ADTSThe clip as raw AAC in an ADTS stream — the codec behind most streaming and mobile audio. For testing AAC decoders and remux into MP4.
Generated by generation/audio_reference.py. Free for any use, no attribution required — license.