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p/krispYour AI-powered assistant for meetings and calls
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Ozgur Ozer

Krisp Mac — Mute background noise during calls

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Windows version is available

Take calls from wherever you want without being embarrassed for the crying baby noise or airport noise in the background.

Krisp works with any conferencing app and with headset .

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Davit Baghdasaryan
Maker
Hi ProductHunt, I'm the CEO&Co-Founder of 2Hz.ai, the maker of Krisp app. @ozgrozer could you please list me and @artavazd_minasyan as Makers? This has been an accidental launch for us and caught us by surprise. We are very excited with it though! Krisp is using Deep Learning to separate background noise from human voice in real time. This is the first deployment of DNN based noise cancellation in laptops. And I must say the quality is quite amazing. Currently the App is only available on Mac. Windows version will come very soon. You can use Krisp with any Conferencing app and headset of your choice. Please download it, start using and share your feedback here. We will be happy to answer all your questions.
Joshua Fry
@davit_baghdasaryan Is there any compression or degradation of sound quality with this? I'm wondering if it could be any use as a filter when recording vocals for music e.g. for small time musicians recording at home, limiting the need for soundproofing.. or for podcasters.
Davit Baghdasaryan
Maker
@joshuafry Krisp is designed to filter out everything that is not human voice. So it might not work that well for recording music.
Ricardo Muacho
@davit_baghdasaryan Having a "non-human voice filter" is defo very helpful. My other pain when using VoIP is the echo on meeting rooms. Is Krisp able to reduce the room echo/reverb?
Davit Baghdasaryan
Maker
@ricardo_a_muacho most VoIP solutions successfully address echo. There is only one situation where echo is still unsolved. Thats when there are multiple mics (laptops) in the same room and network latency is high. What's more interesting is reverberation. Yes, Krisp will solve it soon. We are working on it.
Melik Karapetyan

What it does is a magic. It has two modes. The first one does noise cancellation of your speech those sending only your voice to the recipients and does it really really well. The second mode does the opposite. I'm using it for about a week on daily basis.

Pros:

The best noise cancelling tool out there

Cons:

Only available on mac OS

Baadier Sydow
This is perhaps a weird usage but would this improve the quality of my tutorial/course video's audio? It doesnt seem to be one of the applications of the tech?
Davit Baghdasaryan
Maker
@baadier that's right it will work. However please keep in mind that Krisp is currently better suited for call as it uses 16kHz sampling rate. For tutorial videos you might want to use higher sampling rate. 44kHz support is in our roadmap.
Andy Lima
@baadier @davit_baghdasaryan Looking forward to 44kHz support for recording audio courses (& podcast episodes).
Davit Baghdasaryan
Maker
@baadier @andylima We will have it in 2 months.
Anurag Mehra
Are you planning to create iOS or Android app?
Davit Baghdasaryan
Maker
@anuragmehra iOS and Android won't come soon as it's not possible to register a virtual microphone/speaker under mobile OS architecture.
Vache Asatryan
@anuragmehra @davit_baghdasaryan Does this mean that you would need tighter OS/Vendor integrations. So like a Samsung can put you at OS level.
Davit Baghdasaryan
Maker
@anuragmehra @vachi1 correct, either tighter integration with OEM or App vendor. Or perhaps our own App. We will see.
Johan Vosloo
Initial testing using Slack in a busy office gave fantastic results. Killer app idea.. and good use of AI to boot
Rafael Shirakyan
Maker
@jvosloo Thanks for the feedback :)
Joel Benjamin
This is the coolest thing I've seen in a while. Love it!
Steven Rueter
Um, can I upvote this twice?
Rafael Shirakyan
Maker

Definitely give a try

Pros:

Awesome app, clears the noise during the calls, had been alpha user, the app constantly gets better each week.

Cons:

There was high CPU usage, but the consumption got less during the last weeks

David Flatow
@davit_baghdasaryan First of all LOVE THIS! It's about time :). I've been using the app for the past few days I've noticed voice sounds are a bit more round/muted. I'd imagine much of your work has centered around filtering out background noises by classifying between human voice/ background noise. Have you/do you do anything to enhance the signal coming come voice and add back sounds that make voice sounds sharper/more human? Logical extension: have you ever thought about improving the clarity of speech? For example correcting things like poor connection, mumbling, heavy accents, etc.. I'm thinking something like a GAN to propose an even better version of the sound?
Davit Baghdasaryan
Maker
@daflatow This is a great observation. Of course we are aware of that problem. In fact improving overall clarity of speech is our company's mission (2hz.ai). We thought that background noise is the first thing we should start with and I think we did a great job there. Enhancing signal bandwidth is another thing we plan to deploy soon (16kHz->48khz). And finally making the signal sharper will be the ultimate improvement. I must say that each one of these problems is really tough though. Applying GAN sounds very interesting.
David Flatow
@davit_baghdasaryan Brilliant. Just read more on your site -- excellent approaches on all fronts. Last Q: Have you ever thought about utilizing an additional mic? For example your phone mic (when on computer) via companion app. When I thought on this problem that was the easiest thing I came up with. I'd imagine you'd get a lot of benefit from an additional signal in the same room one closer to the source you want to filter and one closer to the signal you want to enhance. If you do it can you pls call it binauribus? haha
Davit Baghdasaryan
Maker
@daflatow that's a neat idea. I think latency would be a problem though. Multi-mic algorithms are effective only when there is no latency
David Flatow
@davit_baghdasaryan yeah makes sense -- turns it more into an eng problem. Given background noise is relatively constant tho, might be a useful lagged variable. Also might be valuable for creating an offline "golden" data set for future training / experimenting. Anyway... super cool stuff. Thanks for taking my Qs!
Hoai Pham
It is nice app
Rafael Shirakyan
Maker
@hoai_pham Thanks for the feedback :)
Joey Tawadrous
This is really cool. I've been looking for something like this for some time now and was about to create it myself! What's your tech stack and how long did it take to create?
Davit Baghdasaryan
Maker
@joey_tawadrous The tech is entirely powered by Machine Learning. It took us more than 2 years to come up with this DNN model.
Sophia Aryan
Congrats with the launch! How are you going to develop the product further?
Davit Baghdasaryan
Maker
@sophia_arakelyan thanks. We are putting lots of effort in improving the core value of the product - that is voice audio quality improvement and usability. There are also some very cool features in the roadmap. Stay tuned.
Gilles Bertaux
Just tested it on @livestormapp :) Works like a charm for webinars and meetings. Strongly recommend.
Davit Baghdasaryan
Maker
@livestormapp @gillesbertaux thanks, this is great
Sarah Evans
Really looking forward to trying this out. You’re definitely solving a problem.
Babken Karapetyan
great will try to use it.
Rafael Shirakyan
Maker
@babken_karapetyan Let us know about the feedback 😃
Mr. Mason
Just did some test calls using ring central for my business. The results are absolutely amazing. The coolest hunt of the year! Thank you 🙏
Rafael Shirakyan
Maker
@coschaos Thank you for the nice words :) We will get even better !
Himanshu rawal
Great ! appriciate your harwork that you have done a great job. it is very helpful and there is a great experience in the field of Internet, which will prove to be of everyone's Interest.
Artashes Vardanyan
I imagine this super-super-super awesome product helping me not to be in panic when there is an important call and i cant find a calm place
Narek Vardanyan
Super cool idea and a product. Everybody needs this
Armen Mkrtchian
Congratulations 2Hz team with the release. Impatiently waiting for the next meeting call to test it. The demos are really amazing. If it really works as promised, our customer success team will be happy to use it with the clients. Do you have an ETA for iPhone or Android release?
Davit Baghdasaryan
Maker
@armen_mkrtchian would be awesome if your customer success team to tries it. Unfortunately iPhone/Android are not in the roadmap yet. There are integration challenges on mobile architecture.