Portable gear for live video mixing and encoding

Carles Galan Encoding

There are many options for audio and video encoding for live streaming of events, webinars or lectures. In this post I will recommend a few portable solutions in the lower price range. Before giving any specific recommendation, let me provide some guidelines: Nowadays Full-HD video sources are widely available and provide a significantly better quality, even for low bit-rate streams, than older analog SD signals. Webinars usually start with a looping recorded video, a countdown video or simply with a still image along with some (rights-free) music. Speakers also tend to bring along prerecorded videos and presentations that have to be included in the live webinar. With these considerations in mind, I recommend two basic configurations to make up a good portable mixer/encoder for a few video sources and RTMP encoding. Portable System 1 ASUS Laptop NJ750J RAM 8-16MB, SSD: 256GB+ HD: 750GB NVIDIA GEOFORCE GTX 850M 4 USB 3.0 in two different busses (very important) 2-4 MAGEWEL XI100SDI   SDI-USB-3.0 capture cards Either, 2 cards that work with 2 FullHD sources -one connected at each side (bus) of the computer-, or 4 cards that work with 4 HD sources (720p) for instance. DATAVIDEO DAC-70  is an all in one, very efficient up/down/cross converter we use it to embed analog audio source to an SDI or HDMI video signal, or to convert HDMI to SDI, or to convert VGA to SDI or HDMI VMIX HD video mixing software Adobe Flash Media Live Encoder (free software) Even though VMIX can itself do the encoding, based on the AFMLE classes, we recommend using this encoding option, which will capture the live video and audio feed from by VMIX. All this plus a few cables and converters will make up a reliable solution at a very good price. My 3 most valuable suggestions for managing systems like this are: Carefully set-up your computer turning off any automatic update setting the system might come with. Use the computer only for this purpose Have a backup of every piece of the gear (computer, magewel and DAC70) Portable System 2 Asus ROG G750JT, JY, JX – GTX 7xxM, 8xxM 1 Thunderbolt input AJA Io® 4K 4K and HD I/O for Thunderbolt™ 2 capable for up to 4 FullHD / 4K inputs/outputs DATAVIDEO DAC-70  is an all in one, very efficient up/down/cross converter we use it to embed analog audio source to an SDI or HDMI video signal, …

Skype participant mixed in your webcast encoded video: Problems you may face

Frank Carmona Control-Room (Live Production), Encoding Leave a Comment

My video quality isn’t great… The advice in the table below can help you to get the best possible video quality. You can also visit Skype’s forum dedicated to video issues or view their Webcam not working on Skype?troubleshooting video. Problem Resolution Poor quality webcam Webcams come in many different qualities and prices. Buying a good webcam will benefit the person you are talking to, but if the person you are talking to has a low quality webcam you will still see a low quality image.A good webcam is a prerequisite for good quality video calls. Buy a webcam that’s guaranteed to work seamlessly with Skype from the Skype shop. Slow or busy internet connection You or the person you are talking to may be experiencing problems with video due to a slow internet connection. You should both try closing applications that use the internet (especially those that might be playing music or video) and cancel any file downloads.Make sure that both you and the person you are talking to have theminimum bandwidth required to make a video call. Weak wireless signal If you are using a wireless internet connection, ensure that the network signal is strong. If it isn’t, it may be better to connect directly. Computer running slowly Do you or the person you are talking to have a lot of programs open? Try closing some of them and see if that makes a difference to your video.If you’re using a laptop, you may have problems with video calls when it’s in power saving mode. Change your computer to AC power or switch your computer to maximum performance.Make sure that both you and the person you are calling are using computers that have the minimum system requirements to run Skype. Bad lighting If the room you’re talking from is quite dark, you’re probably not sending great picture quality to the person you’re on a video call with. Try turning on more lights or opening the curtains. Also, try not to sit with your back to a sun-lit window or bright lamp. This will cause your face to be in shadow and result in a poor picture. For best results the light source should be shining on your face from behind the webcam. Too many USB devices plugged in You may not be sending great video because you’re using other USB devices. Try disconnecting them or try connecting your webcam to an alternative USB port. …

webcaStudio Compatible Mobile Devices

Frank Carmona Encoding, Mobile, V3.4

Applies to Version 3.4 and newer within Version3 End-user compatible devices iOS  iOs Version 3.0 and newer Safari Browser Android Android Version 3.0 and newer Chrome browser   Encoding or transcoding settings iOS recommended codecs and settings: Video: H264   baseline  (in a MPEG-2 transport stream)  Audio: AAC LC Click here for a complete reference Android recommended codecs and settings: Video: H264   baseline  (in a MPEG-2 transport stream)  Audio: AAC LC Click here for a complete reference