Show HN: HN Watercooler – listen to HN threads as an audio conversation
65 comments
·April 17, 2025sebastiennight
Alright, I've made several updates based on feedback!
Cost Estimation
- Shows (very rough) character count estimate (rounded to nearest thousand)
- Displays approximate cost at $0.12 per thousand characters
- Updates dynamically as selections change
- Added toggle between single thread URL and top 100 stories selection
- Implemented multi-thread selection with checkboxes
- Saves input mode preference to localStorage
- Changed to "All" as default with option for custom limit
- Original post no longer counts against comment limit
- Text with > is now properly recognized as quotes
- Quotes are transformed with random introduction phrases
- Adds "End of quote" with variations at the end of quoted text
- Preserves shared links in expandable section at the bottom
- Different random phrases for first, second, and multiple links
- Links open in new tabs when clicked
- Matches commenter usernames to ElevenLabs voices if names match
- Falls back to deterministic assignment if no match found
- Saves progress and allows resuming after errors
- Shows "Retry" button with partial audio when errors occur
- Audio generated so far is available for download
- Added tooltip with API key information
- Persistent theme preferences via localStorage
- Improved responsive design for mobile
- the filename of the generated MP3 file matches the thread titlesebastiennight
Issues I've noticed when running it against more threads:
- don't use Legacy voices as they seem to be of much lower quality (sounds like someone is calling in from an international landline)
- when the same poster appears many times, it gets tedious to hear them restate who they are. I think after the first 3, we should recognize the voice so that's not necessary anymore
Feature requests I'll add:
- emphasize quotes better
- add audio chapter marks if possible, so it's possible to skip ahead
- attach a speaker's voice to the relevant voice in the 11Labs account if there's a voice with the same name as the username
- add sound effects if people write down sound effects in their comments (this seems tough)
Anything I'm missing?
rgbrgb
This is cool. Any chance you can drop an example?
sebastiennight
Here's a quick example:
First 20 comments of "John Carmack: writing Rust code feels wholesome"
Here is the rendered mp3 : https://drive.google.com/file/d/1yG1mwD70ZteXtdh8Jk_sXUXS_sQ...
The thread: https://news.ycombinator.com/item?id=19126795
First 30 comments of a recent thread, "AGI is still 30 years away": https://drive.google.com/file/d/1YbgRXBv1LC3IdMl8Xb4i9y98S2T...
The thread: https://news.ycombinator.com/item?id=43719280
sebastiennight
Given recent developments I think it might be fun to listen to this very thread as audio!
gojomo
Can I upload my own voiceprint so my comments are said in my voice, voice of my choosing?
Can I navigate by voice commands, for example if listening while driving?
sebastiennight
1. This should be possible, I think for example if you saved your cloned voice in your account with the same name as your HN handle. I'll add this. This should then work for using any voice for a specific user (just use the right username as the voice's name in 11Labs).
2. No navigation by voice commands sadly - it generates a single audio track. I might be able to insert chapter marks for each comment though, so that it'd be possible to "skip" to the next comment!
01HNNWZ0MV43FF
I don't have a voice print, can I put something in my profile to get a generic feminine voice? I don't suppose there's a pronouns field
sebastiennight
I would think once I introduce the feature above, you could just create a "01HNNWZ0MV43FF" voice with the Voice Lab[0] inside your account (not necessarily duplicating your real voice but just using 11Lab's tool to get a feminine voice). Would that work?
mosquitobiten
One big post can have a bigger reply counter-arguing every point 1b1. It would be nice if the arguments go back and forth, basically segmenting the post and the replies into multiple lines of dialog, rather than feeling like you are listening to a speech.
sebastiennight
Wait... do you mean, quoting the original (or parent) poster in their own voice when there's a quote?
That seems less natural. I think what I can do though, is turn quotes into actual quotes, eg. turning
> One big post can have a bigger reply counter-arguing every point 1b1
into:
"Look; you said 'One big post can have a bigger reply counter-arguing every point 1b1'"
mosquitobiten
>Wait... do you mean, quoting the original (or parent) poster in their own voice when there's a quote?
yeah, I think what I'm getting at is when there is a big argumentative post crossing the line from chit-chat to speech, break out of the structure of the website, let the LLM get the arguments out and connect them to the counter-arguments and turn it into a back a forth with shorter dialog lines, without repeating too much or one person talking for very long.
Also I agree, the LLM should be free to transform or add dialog how it sees fit so it feels more natural but always keeping it true to what is written.
sebastiennight
In this app, the process runs entirely in the browser and has no LLM calls at all, so we don't have the ability to rewrite the conversation (other than performing regexes or other crude operations on the text of a comment, which is how links are turned into "See the link I posted in the thread").
I also think it's incredibly difficult (even with an LLM) to render properly a multi-turn multi-user conversation without sticking to the actual hierarchy of the thread. We would probably run into the "summarize the thread and lose nuance" problem again.
sebastiennight
Note: I'm particularly interested in feedback on making the conversation feel even more "natural" so that the audio is as similar as possible as if we were really listening in on the watercooler chat.
throwanem
[flagged]
sebastiennight
I'm sorry, please allow me clear any misunderstanding.
I am not producing any derivative work of your comments, and this is not commercial use. Here is why:
a - this is a static HTML page so the only way to generate audio from it is for YOU to provide YOUR 11Labs key to get an audio on YOUR 11Labs account that YOU can then download to YOUR computer, so technically YOU would be creating the derivative work, not me
b - how is this promoting my business?? There is no link to it anywhere here
c - did you follow me from the TikTok thread to here? what's going on?
Also, are you also issuing cease and desist letters to every web app that is using the HN api? Because there's really nothing happening here warranting such a response.
throwanem
To your first point, conceded on further review, but it is unwise to host this on your corporate Github account edit: or a Github Pages account sharing a name with your corporate entity. I would take it as a sign of good faith to see that change soon, which seems a trivial burden since personal hosting for Github Pages is also free. edit: No longer necessary in my view, though I still would recommend it; not everyone is as nice as me.
To your second, see my first, above. Also, you opened your Show HN as:
> Hi HN, here's something fun to play with.
> It takes any HN thread and turns it into an audio conversation so you can listen to the thread while doing other things.
> I've seen many previous attempts to turn HN threads into podcasts, but they all shared a common issue IMO: trying to reduce the very rich back-and-forth into a single-thread single-reader boring podcast. Instead, I wanted to hear the actual debate from the actual thread!
I appreciate you believe yourself to have acted in good faith, and on further review I concede I made some hasty assumptions, based on the nature of your own representations, about the nature of this work, which led me to conclude more than appears to be warranted in fact.
I know of no Tiktok thread, but infer from your mention of same I am not the only one who has reacted in a fashion which some could see fit to consider precipitous. Please consider the possibility that this is what a launch looks like in the moment when it is only going sideways, after the rocket has ceased going up but before it begins to succumb again to gravity's inexorable pull.
throwanem
One moment, please, while I review in more detail.
isoprophlex
[flagged]
bustadjustme
> By uploading any User Content you hereby grant and will grant Y Combinator and its affiliated companies a nonexclusive, worldwide, royalty free, fully paid up, transferable, sublicensable, perpetual, irrevocable license to copy, display, upload, perform, distribute, store, modify and otherwise use your User Content for any Y Combinator-related purpose in any form, medium or technology now known or later developed.
You may have issued such a license...
Though without an explicit sublicense from Y Combinator, they may have issues with this application:
> Except as expressly authorized by Y Combinator, you agree not to modify, copy, frame, scrape, rent, lease, loan, sell, distribute or create derivative works based on the Site or the Site Content, in whole or in part, except that the foregoing does not apply to your own User Content (as defined below) that you legally upload to the Site.
sebastiennight
This is simply calling the official YC API[0] from the end user's browser, so any user is basically doing the equivalent of clicking the Text-to-Speech accessibility button in their browser, really (albeit with better voices).
Wowfunhappy
Oh for goodness sakes. This is why we can't have nice things.
I don't know if you're legally in the right or not, but if you are, it's only in the sense that media companies are in the right when the DMCA a child's fan art drawing of one of their characters.
Please stop.
throwanem
There is an extremely material difference between Disney DMCAing a good-faith fan artist and me, one unemployed person without so much as a sole-owner LLC to my name, demanding that my words not be turned to some other bastard's moneymaking purpose.
I understand, as I have clarified elsewhere and for which I owe you no accounting of any kind, that is not happening in this case. I do not apologize, to you, for any particular of my reaction.
Please stop.
null
plun9
It seems that in the generated audio, the number of comments is off by one. It is missing 1 comment.
sebastiennight
I think it counts the original post as a comment, so the total shown is (original posts plus number of comments). Is it actually missing one comment in your audio ? which one? first or last?
plun9
The last one. I did https://news.ycombinator.com/item?id=43552385 and entered 26 comments.
sebastiennight
Ah! You don't need to enter the exact number of comments in this field, you can leave it at 100.
Entering a max of "26" manually is what created the off-by-one error, I think, because of the original post being counted as a comment.
But yeah, I'll fix that.
If I leave the max at 100, then I get every comment (original post + al 26 comments), here's the output audio: https://drive.google.com/file/d/1fIis8yQn-YuOmJwq1J4cLtthQV0...
wewewedxfgdf
This is pretty good I might listen to this as alternative to a podcast.
Maybe publish it as a podcast.
sebastiennight
Thank you!
I have no plans to publish as a podcast (if I was going to go through all the trouble to put a podcast together, it would be an actual podcast for my startup, not for a hobby project!) but I'd love it if someone did it!
devrandoom
Oh nice cool water. It's a bit muddy looking? Is it safe to drink?
01HNNWZ0MV43FF
Continue straight for eleven thousand miles, then turn lreft
thegreatpeter
rips hair out
sebastiennight
This sounds painful! I think I'll add a feature so 11Labs generates sound effects for comments like this, so they can be enjoyed in their full glory
throwanem
[flagged]
sebastiennight
Hmmm this personal non-profit project is not endorsed or owned by my company at all, so you should rather reach me individually if you have comments regarding it, but otherwise if you have any official communication to send to OneTake Pte Ltd (the company), then yes, that's a valid email.
May I ask why though? It seems oddly off-topic.
throwanem
[flagged]
garbagewoman
How can he know which is your real account though? I guess you’ll have to post under your real name
skywal_l
When you post on HN it becomes public data. Are you going to sue antirez too about his post earlier today on word similarity analysis?
Carrok
What a completely unhinged knee jerk overreaction. Maybe take a nice walk.
rafram
Are you planning to send them a cease and desist for having AI read your comments?
throwanem
I intend exactly that: https://news.ycombinator.com/item?id=43721405 edit: See above; no longer a concern.
I see I'm rate limited, which is reasonable at this time; I'll follow up via email tomorrow or so. Sorry for necessitating moderation.
rafram
Even if it had worked the way you thought it did, that’s absolutely bizarre.
Hi HN, here's something fun to play with.
It takes any HN thread and turns it into an audio conversation so you can listen to the thread while doing other things.
I've seen many previous attempts to turn HN threads into podcasts, but they all shared a common issue IMO: trying to reduce the very rich back-and-forth into a single-thread single-reader boring podcast. Instead, I wanted to hear the actual debate from the actual thread!
So I asked Claude 3.7 to build this for me as a browser-only app. It just needs a thread URL and an Elevenlabs API key (this all remains in your browser, you can check the source code, it's only 3 files, there is no server storage of anything).
To make the resulting audio experience as natural as possible, each commenter has a different voice.
Commenters who appear multiple times in the thread have the same voice, and introduce themselves. A bit of context is also introduced when coming back "up" from deeply nested comments.
You can play the resulting audio or download it for later listening. I'm planning to later add the ability to load multiple threads so I can have a playlist generated for listening in the gym!
Any comments or improvement suggestions are appreciated!