Our hosting is kindly provided by Josh from AnHonestHost.com. We would appreciate it if you could donate to help reduce his costs in funding the hosting. He is also accepting bitcoins to 1KsxJr9HtsdaUeU7yaV9bk9bQi21UPBtUq
Please also consider supporting the https://archive.org/donate/ who are now hosting our media files. Right now, a generous supporter will match your contributions 3-to-1. So your $5 donation results in $20 for the Internet Archive.
Welcome to HPR the Community Podcast Network
We started producing shows as Today with a Techie 12 years, 5 months, 13 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 15 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.
Audio production has always been an interest of mine: my late grandfather was an audiophile, my dad ran an AV studio in Woking (the one where the Spice Girls were formed - my dad got mentioned in a couple of their autobiographies) and now runs his own AV consultancy business, and my cousin also runs an AV consultancy... so there’s a definite family history in there.
I dabbled briefly with hospital radio (as a technician, rather than a presenter) in the late 80’s, and I was a technician and presenter on College Radio in the early 90’s where I hosted a show called “The Barry Manilow Fan Club” on Friday lunchtimes.
Yes, I am a huge fan of Barry Manilow - he’s given me a lot of inspiration as a musician - no, I didn’t play any Barry on the College Radio show.
I’d also had a few people say that I had a good radio voice. Others say a good radio face, but I don’t like them anymore.
In 2007, I discovered this podcasting lark through a couple of friends who had their own podcasts. One was The Random Three: a personal musical journey where Mark - the host - would play three seemingly-random pieces of music from his own collection (thus, not podsafe) and explain the reasons why he chose them. Most of the time, these seemingly-random tracks actually had a theme, but it didn’t necessarily become apparent until after the second track. It was a great show - now sadly defunct - and I really miss it. I even submitted my own music choices for Mark to present.
The other was Dumbed Down Life: three chaps nattering about “stuff” and playing some music along with it. Another great show, which - although it still exists - currently releases episodes every year or so.
What drew me to these shows - apart from being friends, was the fact that these were regular guys, not professionals.
That led me to think “I can do that”, so I set about proving - to myself, mostly - that I could.
One Thursday in early March 2008, when the wife had gone to the gym for a couple of hours, I grabbed my Logitech headset, my Linux laptop, a handful of tracks from the Podsafe Music Network, and a piece of software called IDJC, and recorded the first ever episode of The Bugcast. It was just over 22 minutes long, and it was dire. Utterly dire. Every so often, I go back to it and listen and cringe and marvel at how much better the show is now!
The music back then wasn’t strictly podsafe either: the first track I played was Moloko’s Sing It Back… but I didn’t worry about it then, as I got the track from a source that gave implicit permission for use in podcasts.
I did do a show - episode 20 - which was a nostalgic trip back to my college years, where I played tracks by Chad Jackson, Japan, and Dream Warriors. This was a complete and intentional violation of copyright on my part, which led me to pull the show only a few weeks later. I did rerelease the show two years after that, but with the offending tracks removed. However, there is a story to the show, so I would recommend you go listen.
Back then, it was just me and a small listener-base of friends, their family, their families’ servants; their families’ servants’ tennis partners, and some chap I bumped into in the mess the other day called Bernard. But as time went on and I got more experience, I was really enjoying what I was doing, and started to experiment.
One thing I did discover by about episode 16 is that I wasn’t editing my shows in post, aside from topping and tailing silence. This made it so much easier for me as I was recording the shows as-live from the very beginning, but taking out the vocal gaps, gaffes and the like. So there was really only one place to go from there...
So in August 2008, on episode 24, to an audience of about 10 people, I streamed the first LIVE episode of the podcast. Wow, that was such a buzz! It was a major turning point in the show as I committed myself to do a regular show at a set time each week... turning a fun hobby into something a little step beyond amateur. There were a couple of non-live shows that I had to put together using the wife’s Windows machine when my laptop went bang and had to be repaired, but I hated doing that because I didn’t like the piecemeal sticky-tape method of production. There was little flow, and my spoken links between the music sounded very much like a bad Radio 4 anchor.
In late September 2008, I was accepted as a member of the now-defunct Association of Music Podcasting. This was another major step for me. All member of the Association were peer-reviewed as part of the criteria for membership. This meant that my podcast was sufficiently good to be accepted. That meant so much to me, and made me take things so much more seriously (and was the main reason why I pulled episode 20 just prior)
It also meant that the show was becoming more music-oriented - something I really did not have a problem with! Particularly as I was starting to strike up good relationships with some of the artists that I was featuring on the show. This led to me prerecording an interview with one of the bands in January 2009, and then again with another artist in March.
Having registered a proper domain for the podcast (rather than piggybacking my own personal domain) and then celebrated the first anniversary of the show... you could say that the show was fuelling its own progression. And I was enjoying that journey immensely!
Over the next 6 months, I joined the Made In The UK Show collective, interviewed an artist LIVE on the show, had the show syndicated on an internet radio station in the UK, and launched a new, independent chatroom for the website.
The Major Change
And then, in September of 2009, the 18 month anniversary of the show, and two days before my birthday, something happened to totally turn the show upside down.
I decided that I wanted to improve the show. Bearing in mind that I was still using my Logitech headset, my Linux laptop, and a piece of software called IDJC to record and stream the show, I felt it was time for a change. So I spent a small fortune on a mixer, microphones, stands, audio interface, and cables.
Yes, microphones. Plural.
Up to this point my wife, Caroline, had progressed from occasional listener, to regular distraction (I don’t think details are appropriate!), to researcher. So I asked her a question... if I bought two microphones, would you join the show as a permanent co-host? She said yes.
That really changed things. The dynamic of me talking to an imaginary audience (bar the activity in the live chatroom) changing to me bouncing off someone in the same room was electric! The show was totally transformed by that fairly simple change. Our listener figures jumped up, the music on the show was more varied, existing listeners enjoyed the show more... it was amazing.
There have been occasions where Caroline hasn’t been able to join the show (illness, kids, etc) and the listeners (and I) have really noticed her absence.
we’ve launched an OGG feed, which comprises approximately 20% of the downloads from the site
at one point we were syndicated on 4 internet radio stations around the world
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
Released: 2018-01-09. Duration: 01:57:10. Flag: Explicit. Series:HPR_AudioBookClub. Tags:HPR AudioBookClub, Triplanetary, E. E. "Doc" Smith.
The HPR_AudioBookClub discusses Triplanetary: First in the Lensman Series by E. E. "Doc" Smith