MAmarcodiego·Jun 28, 2021Submission
Google's Lyra speech codec is now fully open-source
19 points · Open discussiongoogle
lyra
C++2021–2024
google / lyra
lyra
A Very Low-Bitrate Codec for Speech Compression
9Distinct people
9Mentions
0Explicit recommenders
4KGitHub stars
What to know before exploring
What it is
A Very Low-Bitrate Codec for Speech Compression
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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Also in these discussions
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This week on Hacker News
Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 2:04:58 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 year9 dated mentions
Observed mentions: 2021-04-06 19:29:38 UTC to 2024-08-31 09:53:15 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 |
|---|---|---|---|---|---|
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 3 | 2 | 1 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 3 | 0 | 3 |
What Hacker News says
3 sources> It is over 6Kbps Opus[1].
The overhead from packet headers to send data every 40ms is 9.6kbps, is the difference between 12.6Kbps and 17.6Kbps meaningful at that point? We are sending the same number of packets, likely with the same packet loss rate.
> A RaspberryPi Zero will provide more than sufficient power for Lyra
A Raspberry Pi Zero can't run Lyra, as the proprietary math kernel is only offered in compiled form for x86-64 and android-arm64: https://github.com/google/lyra#license
In Google open-sources the Lyra audio codecLyra: A generative low bitrate speech codec
2 points · Open discussion