campaign design to setup digital trackers, such as customized url for different events, would be helpful for further even real time analysis. GA also has this feature .
2016年11月18日 星期五
2016年11月15日 星期二
2016年11月14日 星期一
Ubuntu 16.10
Latest Ubuntu is here, which supports Live upgrade from desktop or server version, as shown in https://wiki.ubuntu.com/YakketyYak/ReleaseNotes :
Upgrading from Ubuntu 16.04 LTS
To upgrade on a desktop system:
- Open the "Software & Updates" Setting in System Settings.
- Select the 3rd Tab called "Updates".
- Set the "Notify me of a new Ubuntu version" dropdown menu to "For any new version".
- Press Alt+F2 and type in "update-manager" (without the quotes) into the command box.
- Update Manager should open up and tell you: New distribution release '16.10' is available.
- If not you can also use "/usr/lib/ubuntu-release-upgrader/check-new-release-gtk"
- Click Upgrade and follow the on-screen instructions.
To upgrade on a server system:
- Install the update-manager-core package if it is not already installed.
- Make sure the Prompt line in /etc/update-manager/release-upgrades is set to normal.
- Launch the upgrade tool with the command sudo do-release-upgrade.
- Follow the on-screen instructions.
Note that the server upgrade will use GNU screen and automatically re-attach in case of dropped connection problems.
There are no offline upgrade options for Ubuntu Desktop and Ubuntu Server. Please ensure you have network connectivity to one of the official mirrors or to a locally accessible mirror and follow the instructions above.
2016年11月13日 星期日
English scripting
Scripting for speech and presentation may be different, because you can use abundant slides or interesting videos for the presentation, which will apparently reduce the oral parts. We may estimate a 20 min talk requires 1500 words, then trim it down with those A/V effects mentioned above :)
REF: https://www.presentationmagazine.com/how-many-words-in-a-five-minute-speech-3467.htm
REF: https://www.presentationmagazine.com/how-many-words-in-a-five-minute-speech-3467.htm
HD/SD web cast
For NTSC broadcast or web cast, the source HD (1080i) SDI Live signal from production can be down converted to NTSC first, transmitted by CODEC in SD mode via Internet (for long distance), then finally reach broadcast system for further casting. Computing resource may be much lesser under SD mode while observing the CPU% of ffmpeg. The pixel numbers are 6 times greater for Full HD.
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