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Welcome to HPR the Community Podcast Network
We started producing shows as Today with a Techie 12 years, 5 months, 15 days ago. Our shows are produced by listeners like you and can be on any topic that "are of interest to Hackers". If you listen to HPR then please consider contributing one show a year. If you record your show now it could be released in 22 days.
Diffie-Hellman Key Exchange is based on work initially done by Ralph Merkle, and remains one of the key developments in secure communication over the Internet. In this episode I try to explain just how this works, with an example of a calculated key exchange.
We are currently working through a backlog of pre-recorded episodes. Once this is completed we will restart the Audiobook Club again. If you want to be notified when this happens please let us know via the HPR Mailing List 'hpr at hackerpublicradio dot org'.
Nothing this time, well except for the typical Star Wars reference...and Star Trek, and comics.
Thank you very much for listening to this episode of the HPR_AudioBookClub. We had a great time recording this show, and we hope you enjoyed it as well. We also hope you'll consider joining us next time. Please leave a few words in the episode's comment section. As always; remember to visit the HPR contribution page HPR could really use your help right now. http://hackerpublicradio.org/contribute.php
Sincerely, The HPR_AudioBookClub
P.S. Some people really like finding mistakes. For their enjoyment, we always include a few.
This episode was processed using Audacity http://audacity.sourceforge.net. We've been making small adjustments to our audio mix each month in order to get the best possible sound. It has been especially challenging getting all of our voices relatively level, because everyone has their own unique setup. Mumble is great for bringing us all together, and for recording, but it's not good at making everyone's voice the same volume. We're pretty happy with the way this month's show turned out, so we'd like to share our editing process and settings with you and our future selves (who, of course, will have forgotten all this by then).
Mumble uses a sample rate of 48kHz, but HPR requires a sample rate of 44.1kHz so the first step in our audio process is to resample the file at 44.1kHz. Resampling can take a long time if you don't have a powerful computer, and sometimes even if you do. If you record late at night, like we do, you may want to start the task before you go to bed, and save it first thing in the morning, so that the file is ready to go the next time you are.
Next we use the "Compressor" effect with the following settings:
Noise Floor: -50db
Attack Time: 0.2sec
Decay Time: 1.0 sec
Make-up Gain for 0db after compressing" and "compress based on peaks" were both left un-checked.
After compressing the audio we cut any pre-show and post-show chatter from the file and save them in a separate file for possible use as outtakes after the closing music.
At this point we listen back to the whole file and we work on the shownotes. This is when we can cut out anything that needs to be cut, and we can also make sure that we put any links in the shownotes that were talked about during the recording of the show. We finish the shownotes before exporting the .aup file to .FLAC so that we can paste a copy of the shownotes into the audio file's metadata. We use the "Truncate Silence" effect with its default settings to minimize the silence between people speaking. When used with its default (or at least reasonable) settings, Truncate Silence is extremely effective and satisfying. It makes everyone sound smarter, it makes the file shorter without destroying actual content, and it makes conversations sound as easy and fluid during playback as it was while it was recorded. It can be even more effective if you can train yourself to remain silent instead of saying "uuuuummmm." Just remember to ONLY pass the file through Truncate Silence ONCE. If you pass it through a second time, or if you set it too agressively your audio may sound sped up and choppy.
At this point we add new, empty audio tracks into which we paste the intro, outro and possibly outtakes, and we rename each track accordingly.
We adjust the Gain so that the VU meter in Audacity hovers around -12db while people are speaking, and we try to keep the peaks under -6db, and we adjust the Gain on each of the new tracks so that all volumes are similar, and more importantly comfortable. Once this is done we can "Mix and Render" all of our tracks into a single track for export to the .FLAC file which is uploaded to the HPR server.
Remember to save often when using Audacity. We like to save after each of these steps. Audacity has a reputation for being "crashy" but if you remember save after every major transform, you will wonder how it even got that reputation.
Lostnbronx considers the effect that Elon Musk and SpaceX are having on the latest push for the exploitation and exploration of space, and the danger of pegging the future of the human race upon the showmanship of one man.
It's a triple whammy! It's functional programming, functional package management and soundscape!
Hosted by clacke on 2018-03-13 is flagged as Clean and released under a CC-BY-SA license.
Listen in ogg, spx, or mp3 format.
Listen to me walk through five shopping malls and one bicycle tunnel, as I rant about how flow-based programming microservices and functional package management will save the future of programming and software reuse, and usher in a new era of software quality and productivity!
If it sounds like I'm a bit down about working alone on racket2nix, you're interpreting me wrong! I didn't expect any feedback at all from the small to non-existent racket/nix intersection, but it turns out the intersection is larger than I thought, and I'm grateful for any words of encouragement, and feedback in any form on what the community needs.
Released: 2018-03-01. Duration: 00:12:47. Flag: Explicit. Series:HAM radio, QSK. Tags:ham radio, amateur radio, radio, hf.
In this episode I give an example of what sort of things you can expect hear on the HF band
Released: 2018-02-20. Duration: 00:32:25. Flag: Clean. Series:Sound Scapes. Tags:sound, Toronto, transit, subway, crowds, train.
An evening subway ride on the Toronto subway from College Station to Sheppard/Yonge Station
Released: 2018-02-09. Duration: 01:17:09. Flag: Explicit. Tags:parties,fun,x-files,aliens,harry reid,martial law, star chamber,greetings,belated.
Casper and Rutiger discuss the now-old-by-internet-standards news of New York Times piece about real
Released: 2018-02-08. Duration: 00:19:24. Flag: Clean. Tags:writing,storytelling,lostnbronx, science fiction,fantasy,history,historical romance, story structure.
A breezy look at what a "big idea" means in storytelling.
Released: 2018-01-31. Duration: 01:26:27. Flag: Explicit. Series:HPR_AudioBookClub. Tags:Audiobooks, City of Masks, Mike Reeves-McMillan.
The HPR Audiobook Club reviews City Of Masks with author Mike Reeves-McMillan
Released: 2018-01-26. Duration: 00:43:21. Flag: Explicit. Series:Information Underground. Tags:sex,alcohol,women,prohibition,freedom,history,pornography,oppression,playboy,hugh hefner.
The IU guys examine the first Sexual Revolution in America, back during Prohibition.
Released: 2018-01-19. Duration: 00:13:18. Flag: Clean. Series:Health and Healthcare. Tags:Health Insurance, Health Policy, Insurance Marketplace, Obamacare.
Where is US Health Care policy as we head into 2018?
Released: 2018-01-11. Duration: 01:05:06. Flag: Explicit. Tags:DAW, Sonic Voyages, iOS Music Apps, PreSonus Audiobox 22vsl, Logic Pro X, Studio One.
Casper and Rutiger Detail their Digital and Analog Sonic Setups in IOS and Android