FOforgotmypw17·Dec 7, 2020
Good looking out.
https://github.com/mattdiamond/Recorderjs
In Voice Commenting Featuremattdiamond
Recorderjs
JavaScript2012–2020
mattdiamond / Recorderjs
Recorderjs
A plugin for recording/exporting the output of Web Audio API nodes
4Distinct people
4Mentions
0Explicit recommenders
4.2KGitHub stars
What to know before exploring
What it is
A plugin for recording/exporting the output of Web Audio API nodes
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year4 dated mentions
Observed mentions: 2012-09-17 18:22:02 UTC to 2020-12-07 05:59:45 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2012 | 2012-01-01 00:00:00 UTC | 2013-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2013 | 2013-01-01 00:00:00 UTC | 2014-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2014 | 2014-01-01 00:00:00 UTC | 2015-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2015 | 2015-01-01 00:00:00 UTC | 2016-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
4 sourcesi mean, of course events are going to fire like mad. welcome to the world of audio processing. :)
MediaRecorder works the same way (but for MediaStreamSources, not BufferSources).
the idea is that audio buffers are processed in chunks- an event fires for each chunk that is processed. the act of "recording" is just reassembling these chunks into a single ArrayBuffer.
edit: seems like Recorderjs works exactly this way (but implements features more than just recording, like exporting as WAV).
capturing the chunks: https://github.com/mattdiamond/Recorderjs/blob/master/src/re...
reassembling the chunks:
https://github.com/mattdiamond/Recorderjs/blob/master/src/re...
In Show HN: TB-303 Synth, Drum Machine and Sequencer in Web AudioI experimented with the MediaRecorder too but couldn't get anything to work. In the end, I used this: https://github.com/mattdiamond/Recorderjs - It has been abandoned by the author and the forceDownload function does not work anymore so I had to replace that. I'll send you a copy of my version if you like?
In Show HN: TB-303 Synth, Drum Machine and Sequencer in Web AudioRecorderJS: Export Web Audio API output as WAV files
2 points · Open discussion