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32 items tagged "voice"
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9:01
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Hack a Day
A couple of things strike us about this 8-voice 32 kHz synthesizer. First is the cleanliness of the prototype. As you can see, each part has plenty of room on its own board and all are interconnected by 10-pin IDC ribbon connectors. But you’ll have to see the video after the break to enjoy the [...]
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5:01
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Hack a Day
[Phil] over at Adafruit crashed last Sunday’s Show and Tell with an amazing demon costume that includes a voice changer and animated LED matrices for The Eyes and mouth. He just posted how he built this costume, but you’ve really got to Watch the video to see how awesome this build is. Every demon needs a scary voice, [...]
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10:01
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Hack a Day
Halloween is just around the corner, so of course we’re looking forward to a bunch of awesome costumes put together by Hackaday readers. In an effort to match his voice to his costume, [Phil Burgess] over at Adafruit (and former Hackaday alumnus) put together an Arduino-powered voice changer to give his voice the gravitas of [James [...]
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14:30
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SecDocs
Authors:
Leigh Honeywell Paul Wouters Tags:
phone Event:
Chaos Communication Congress 23th (23C3) 2006 Abstract: To encrypt all your mobile phones to protect it from overzealous eavesdroppers, you are currently limited to using special hardware such as the Cryptophone. The disadvantage of cryptophone is that it only works with other cryptophones. To work around this, we turn mobile phones from "voice" phones into VOIP phones. Using the SIP protocol for VOIP and IPsec/L2TP or Openvpn as our VPN, Leigh Honeywell and Paul Wouters connect their mobile phones fully encrypted to an Asterisk PBX server. The presentation, given by Asterisk expert Leigh Honeywell and VPN expert Paul Wouters will start with a description of the demise of the "old" telecom sector and the end of "voice" conversations. The replacement, Voice Over IP promises a lot of good things, but it comes at a price. Hacking VOIP calls on the internet is much easier. We can no longer trust the security of the telecom infrastructure. Forged caller-ID, charging someone else for your calls, breaking through firewalled networks, or abuse via VOIP services like Google, Jajah, Skype or others. We will demonstrate some of these attacks. To address these problems, we need to be able to both authenticate and encrypt our calls. The solution presented is build with using Freely available (mostly open source) software and we will explain various aspects and ideas behind our setup and why we choose the various protocols and software packages. We are currently working with various phones, such as the Linux based GreenPhone, the XDA's and other phones running either Linux or Microsoft Windows PDA phones. Leigh and Paul will also hold a workshop, where they can go into the deep technical details on how to build your phones and your servers, and where people can try out our phones and secure PBX.
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14:23
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SecDocs
Authors:
Leigh Honeywell Paul Wouters Tags:
phone Event:
Chaos Communication Congress 23th (23C3) 2006 Abstract: To encrypt all your mobile phones to protect it from overzealous eavesdroppers, you are currently limited to using special hardware such as the Cryptophone. The disadvantage of cryptophone is that it only works with other cryptophones. To work around this, we turn mobile phones from "voice" phones into VOIP phones. Using the SIP protocol for VOIP and IPsec/L2TP or Openvpn as our VPN, Leigh Honeywell and Paul Wouters connect their mobile phones fully encrypted to an Asterisk PBX server. The presentation, given by Asterisk expert Leigh Honeywell and VPN expert Paul Wouters will start with a description of the demise of the "old" telecom sector and the end of "voice" conversations. The replacement, Voice Over IP promises a lot of good things, but it comes at a price. Hacking VOIP calls on the internet is much easier. We can no longer trust the security of the telecom infrastructure. Forged caller-ID, charging someone else for your calls, breaking through firewalled networks, or abuse via VOIP services like Google, Jajah, Skype or others. We will demonstrate some of these attacks. To address these problems, we need to be able to both authenticate and encrypt our calls. The solution presented is build with using Freely available (mostly open source) software and we will explain various aspects and ideas behind our setup and why we choose the various protocols and software packages. We are currently working with various phones, such as the Linux based GreenPhone, the XDA's and other phones running either Linux or Microsoft Windows PDA phones. Leigh and Paul will also hold a workshop, where they can go into the deep technical details on how to build your phones and your servers, and where people can try out our phones and secure PBX.
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5:19
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Hack a Day
It’s entirely possible to use a computer without the aid of a mouse or trackpad. Shift and arrow keys will get you very far, but that is entirely too taxing. [Stephen] came up with a really neat way to control a mouse with your voice, a project that is sure to find its way onto [...]
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15:01
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Hack a Day
[Emre] sent in a cool art piece he’s been working on that visualizes your voice without the use of a microcontroller. The project is called Visible Voice only consists of a laser, mirror, audio speaker and a phosphorescent disk. The laser shines onto a mirror mounted on the speaker and is reflected onto the disk. [...]
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9:01
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Hack a Day
[Matt Oppenheim] wrote in to share his work with us. He has been modifying the interfaces of electronics for the visually impaired. It started off with cassette decks. As [Matt] points out, many people who are visually impaired use cassettes for their audio books and newspapers. [Matt] added some touch sensors to the buttons so [...]
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6:01
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Hack a Day
[Arthur] was laid up with a wrist injury, so he decided it would be a great time to hang out around the house and tinker with electronics, since most outdoor activities were out of the question. He picked up a robotic arm kit and assembled it to test out some code written for it that [...]
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12:01
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Hack a Day
[Vinod] just finished building a voice recorder and it turned out even better than he thought it would. The video after the break shows him recording what is surely one of your favorite songs from his cellphone and then playing it back. The audio quality does sound quite good for a project with very few [...]
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11:08
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Hack a Day
We’re all familiar with IVRS systems that let you access information using a touch-tone telephone. [Achu Wilso] built his own version which uses a cellphone, microcontroller, and computer. The cellphone is monitored by an LM324 op-amp with an attached 555 timer chip. When a call comes in the voltage on the headphone output goes high, [...]
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15:23
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Hack a Day
[Aaron Bitler] and [Bud Townsend] have been working a natural user system that is, in their own words, “what android@home should have been.” The video they posted is pretty impressive. The automation system responds to voice and can control appliances, ‘throw a party’, and provide a user with their location. This is just the foundation [...]
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6:07
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Hack a Day
[Jeff] sent in a build of a voice controlled robot he just finished based on the Android ADK and an iRobot Create. The robot is able to obey voice commands telling it where to go. Currently the robot responds to forward, reverse, left, right, stop, and ‘whistle while you work.’ It’s a creative use of [...]
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13:59
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Wirevolution
Martin Stanford of Sky TV’s “Tech Talk” does a video blog demonstrating HD Voice on a Nokia phone. There is no latency, indicating some kind of post-processing of the video, but it’s still a nicely done and illustrative demo of HD Voice.
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13:34
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Wirevolution
I will be moderating this panel at IT Expo in Miami on February 2nd at 10:00 am.
Voice over WLAN has been deployed in enterprise applications for years, but has yet to reach mainstream adoption (beyond vertical markets). With technologies like mobile UC, 802.11n, fixed-mobile convergence and VoIP for smartphones raising awareness/demand, there are a number of vendors poised to address market needs by introducing new and innovative devices. This session will look at what industries have already adopted VoWLAN and why – and what benefits they have achieved, as well as the technology trends that make VoWLAN possible.
The panelists are:
- Russell Knister, Sr. Director, Business Development & Product Marketing, Motorola Solutions
- Ben Guderian, VP Applications and Ecosystem, Polycom
- Carlos Torales, Cisco Systems, Inc.
All three of these companies have a venerable history in enterprise Wi-Fi phones; the two original pioneers of enterprise Voice over Wireless LAN were Symbol and Spectralink, which Motorola and Polycom acquired respectively in 2006 and 2007. Cisco announced a Wi-Fi handset (the 7920) to complement their Cisco CallManager in 2003. But the category has obstinately remained a niche for almost a decade.
It has been clear from the outset that cell phones would get Wi-Fi, and it would be redundant to have dedicated Wi-Fi phones. And of course, now that has come to pass. The advent of the iPhone with Wi-Fi in 2007 subdued the objections of the wireless carriers to Wi-Fi and knocked the phone OEMs off the fence. By 2010 you couldn’t really call a phone without Wi-Fi a smartphone, and feature phones aren’t far behind.
So this session will be very interesting, answering questions about why enterprise voice over Wi-Fi has been so confined, and why that will no longer be the case.
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14:27
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Wirevolution
I will be moderating a panel discussion at ITExpo West on Tuesday 5th October at 11:30 am in room 306B: “Achieving HD Voice On Smartphones.”
Here’s the session description:
The communications market has been evolving to fixed high definition voice services for some time now, and nearly every desktop phone manufacturer is including support for G.722 and other codecs now. Why? Because HD voice makes the entire communications experience a much better one than we are used to.
But what does it mean for the wireless industry? When will wireless communications become part of the HD revolution? How will handset vendors, network equipment providers, and service providers have to adapt their current technologies in order to deliver wireless HD voice? How will HD impact service delivery? What are the business models around mobile HD voice?
This session will answer these questions and more, discussing both the technology and business aspects of bringing HD into the mobile space.
The panelists are:
This is a deeply experienced panel; each of the panelists is a world-class expert in his field. We can expect a highly informative session, so come armed with your toughest questions.
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10:00
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Hack a Day
In the video above you’ll see two of our favorite things combined, a quad-copter that is voice controlled. The robot responds to natural language so you can tell it to “take off and fly forward six feet”, rather than rely on a cryptic command set. The demonstration shows both an iPhone and a headset used [...]
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