RE: [beagleboard] Audio capture issue with Audio Cape Rev B
Date: Sun, 30 Nov 2014 19:02:43 -0800 From: nguyentienhoangd...@gmail.com To: beagleboard@googlegroups.com Subject: [beagleboard] Audio capture issue with Audio Cape Rev B Hi All, I tried to test the audio cape Rev B on BeagleBone Black board, the linux kernel used is 3.14.17 (https://github.com/RobertCNelson/bb-kernel.git, branch am33x-v3.14) I can play and capture the sound normally with the Audio Cape. File recorded via the Cape is played fine with the Cape output. But thing went wrong when we play the recorded file else where. On the board, I record audio with arecord commandarecord -t raw -f S16_LE -r 44100 /tmp/1.raw If we play back the recorded file on the board, it is okaplay -t raw -f S16_LE -r 44100 /tmp/1.raw But when I copied the recorded file to x86 machine, the speed of the audio changed. The recorded voice is played 1.5 time slower than it actually is. I tried the same test with USB sound card (record the audio via the Audio Cape and playback via the USB Sound Card), the playback got the same issue that was seen on x86 machine. It seems like there is something wrong with the clocking. May you please give any suggestions. Thanks -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
RE: [beagleboard] Re: Welcome the Fall 2014 Beagle Class to the group
I've couldn't find the page! could you point me the link?thanks! Date: Thu, 18 Sep 2014 10:47:08 -0700 From: alexva...@gmail.com To: beagleboard@googlegroups.com Subject: [beagleboard] Re: Welcome the Fall 2014 Beagle Class to the group Finally found the page! The class is doing great! On Friday, September 5, 2014 11:13:58 AM UTC-4, Mark A. Yoder wrote:The purpose of this posting is to announce that I'm once again teaching an Embedded Linux class based on the BeagleBone Black [1]. I'm teaching as open-source as I can and have have posted many of course materials on eLinux.org [2] and github[3]. I'm always open to ideas on what topics to include in the class and suggestions for interesting course projects. For example we are startingBoneScript today and hope to be writing simple kernel module 5 weeks from now. Class, please respond to this posting. Others, please welcome my class. --Mark --Prof. Mark A. Yoder Rose-Hulman Institute of Technology [4] [1] http://elinux.org/Embedded_Linux,_Rose-Hulman [2] http://elinux.org/index.php?title=Category:ECE597 [3] https://github.com/MarkAYoder/BeagleBoard-exercises [4] http://www.rose-hulman.edu -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
RE: [beagleboard] BBB video processing
Forget about zigbee.Zigbee does not work with video. Its bandwith it's not enough. Date: Sun, 31 Aug 2014 04:53:13 -0700 From: radhaling...@gmail.com To: beagleboard@googlegroups.com Subject: [beagleboard] BBB video processing Hi everyone...my project involves devolping a standalone system for image and video processing initially i heard Raspberry pi can do multimedia tasks better than BBB... but after exhaustive search through discussion forums i found that pi is not an attractive choice for my needs.. components involved arecamera===BBB===Zigbee module..Power supply portable USB baterry /powercape working:-capturing a live video stream using a cam attached to BBB-processing the captured data(some kind of compressions)-send the compressed data wirelessly using a zigbee module attached to BBBmy doubts are- can BBB capture video streams from a camera? -If yes, what are the cams which are economical to buy??-can BBB process videos with openCV installed on it??-can a Zigbee module be attached to BBB??-can i be able to operate BBB with batteries(two no.s) or a portable usb battery ??since am a beginner in embedded linux platform please kindly suggest me tutorials and books which i can go through to master the use of BBB with openCV and interfacing BBB with Zigbee module.I am looking forward your views and suggestions which will be greatly helpful for me... thanks in advance. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
RE: [beagleboard] Looking for a Windows 8 driver tester for BeagleBone drivers
They are installed Ok Windows 8.1 on ASUS X45A Notebook 64 bit version Date: Thu, 10 Jul 2014 12:00:03 -0400 Subject: [beagleboard] Looking for a Windows 8 driver tester for BeagleBone drivers From: jkrid...@beagleboard.org To: beagleboard@googlegroups.com Can someone grab the drivers from https://github.com/jadonk/beaglebone-getting-started/archive/1.0.1.zip and confirm they work on Windows 8? The source and how I built it is all in that repo, but I don't have a Windows 8 machine. Before I push this into the main distro, I'd like some confirmation it works with Windows 8. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
RE: [beagleboard] ZigBee Home Automation Gateway reference design
Assuming you use it with a CC2531 as a ZNP, I think that you must use the ZNP api. you must download de stack and dig very deep in the doc.Guillermo Date: Tue, 10 Jun 2014 15:27:50 -0700 From: janszymanski12...@gmail.com To: beagleboard@googlegroups.com Subject: [beagleboard] ZigBee Home Automation Gateway reference design Hi, There is a reference design from TI here http://www.ti.com/tool/CC2531EM-IOT-HOME-GATEWAY-RD based on BBB (plus CC2531EMK) Among features it states: Simple API for home automation, incorporating TCP/IP to ZigBee bridge and enabling faster development of applications and easier integration of low power connectivity solutions Has anyone have it running? How do access the API? Couldn't find any documents how to start with it (wiki?) Jan -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
RE: [beagleboard] Fwd: Projects announced for 2014!
Great projects! can't wait to see them working! Date: Tue, 22 Apr 2014 17:34:38 -0400 Subject: [beagleboard] Fwd: Projects announced for 2014! From: jkrid...@gmail.com To: beagleboard@googlegroups.com http://beagleboard.org/blog/2014-04-22-google-summer-of-code-2014-projects BeagleBoard.org Google Summer of Code 2014 projects Yesterday, Google announced the project proposals accepted for this year's Summer of Code! 7 of those projects are being mentored by BeagleBoard.org. See the full list of approved projects at https://www.google-melange.com/gsoc/projects/list/google/gsoc2014 BeagleLogic - Kumar Abhishek will be working on a logic analzer utilizing the BeagleBone PRUs as a way to learn about embedded interfaces, mentored by Matt Ranostay, Hunyue Yau and Charles Steinkuehler. Kernel MMC+DMA - Saket Sinha will be working on improving the MMC and DMA drivers in the Linux kernel, mentored by Joel Fernandes, Greg Kroah-Hartman and others.BeaglePilot - Victor Mayoral Vilches will be working on creating a Linux-based autopilot for flying robots, mentored by Andrew Tridgell, Hunyue Yau, Luis Gustavo Lira and others. Android remote display - Praveen Kumar Pendyala will be working on using an Android phone as an all-in-one user interface for BeagleBone, mentored by Vladimir Pantelic and Vlad Ungureanu.BotSpeak - Deepak Karki will be working on an interpreter firmware that runs on the BeagleBone PRUs to simplify programming them, mentored by Pantelis Antoniou, Hunyue Yau, Jason Kridner, Alex Hiam and others. Bone101 - Diego Turcios will be working on improving the on-board tutorial environment for BeagleBone with live-running interactive examples, mentored by me (Jason Kridner), Steve French, David Scheltema and Jongseuk Lee. PyBBIO - Rekha Seethamraju will be working on improving the PyBBIO Python library for BeagleBone for additional sensors, mentored by Alex Hiam and Steve French. Now is the bonding time between students and mentors and tomorrow at noon US Eastern time is the first official meeting between students and mentors. All of our student meetings are held in public and you are welcome to join us and learn more about these exciting projects. We'll be asking the students to create small introductory videos or screencasts introducing their project to the world, making sure they are well aligned with their mentors and understand their project goals. Stay tuned for those videos! -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups BeagleBoard group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
