All tools › Read a recording
Waveform image
The shape of a recording as an SVG, drawn from peaks because every sample would be a solid block.
It runs entirely in this browser tab: the file you open is never uploaded, nothing here listens to a microphone, and every result is a file rather than something that plays.
Settings
- Width
- A number from 200 to 2000.
- Height
- A number from 40 to 600.
- Style
- Mirrored is the shape an editor draws; bars is what a poster wants. Choices: Mirrored, Bars, A line.
- Colour
- The pen the waveform is drawn with.
- Background
- Leave it empty for a transparent drawing.
- Gap
- A space between the bars, in pixels. A number from 0 to 8.
How to use it
- Paste your text into the box above, or open a file.
- Adjust the settings beside it until the result is what you wanted.
- Copy the result, or save it as a file. The result updates as you type.
Questions
- Is my recording uploaded anywhere?
- No. The whole application is carried as WebAssembly and runs on your own device. There is no server to send anything to, and none of these tools makes a network request while it works.
- Why does nothing play?
- Because a player would be a second application. Every result is a file to open in whatever you already listen with, and saying so is more honest than drawing a play button that does nothing.
- Does the tuner or the metronome use my microphone?
- No, and the browser will never ask for one: there is no code here that could use it. The tuner reads a file you open, the tempo tool reads times you type, and the metronome writes a click track.
- Which formats can it open?
- WAV is read and written whole. MP3, FLAC, Ogg, AAC and AIFF are recognised and described from their headers — the format, the rate, the channels, the length — but their audio is not decoded, and a tool that needs samples says so by name.
Other tools for read a recording
Sound file info
Format, rate, channels, length and bit rate, read from the header — of six formats, not one.
Levels and dynamics
The peak, the loudness and the gap between them, which is the number that says what kind of recording it is.
Spectrum analyser
Which frequencies one moment holds, with the trade between time and frequency stated in numbers.
Find the pitch
What note a recording is playing, in cents, at whichever concert A you use. A tuner for a file, not a string.
All twenty-three tools