Video and audio techniques
Explanations and tutorials on technical concepts related to video and audio. How to avoid blurry movies, remove the background, reduce shaky footage, improve sound, and how to reduce background noise, etc..
Next Articles »How to make your video bigger without resizing
Let’s say you have a 320pixels x 240pixels movie and you want to upload it to a video channel? Then you need to adapt your video so that it will not stretch and look blurry. There is a rather simple trick for that: importing your video into a new one which is 480×360 pixels. That [...]
How to reduce environmental sound in audios?
Environmental sounds are often confused with static because, just as static, it produces a disturbing drone in the background. Tthe funny thing is, that we hear those sounds in reality all the time, but we filter them from our minds automatically. If we wouldn’t block out all that irrelevant background noise, we would go totally [...]
How to reduce static in my audio?
Some sound editors, like Audacity from SoundForge can reduce static noise, but the disadvantage is that it deforms the audio. Therefore, it is best to quelch static before it hits the sound card, so to speak. The most common problem is the microphone (or headset) related to its surroundings. If you are recording sound next [...]
For video an extra hard drive is no luxury – part II
Since there is still an enormous evolution in external hard drives, information becomes stale while you write it, so here is an update on the subject that starts with a question from one of my pupils: “I didn’t know hard drives can die on me so quickly” Any piece of hardware can die on you [...]
Which type of camcorder/webcam to chose when using a teleprompter?
Last week, I’ve got a question about which camcorder or webcam is best for use with a teleprompter. There are camcorders you can attach on the monitor while others need a mini-tripod. As you obviously do not want to buy 2 camcorders in the beginning, what do you need? The answer depends largely on your [...]
Do you need high definition video for iTunes or YouTube?
The immediate answer is No, you don’t need High Definition Video for podcasting on iTunes or YouTube. With a regular standard video format you can do everything on the web you want and more. However, in the not-so-distant future, I’m sure there is place for the HD format on the web, Brightcove.tv is already experimenting [...]
Problems with Halogen light bulbs and how to avoid them
I was racing against a deadline to get my video finished. All went well until I discovered that something was wrong with my audio, so I had to redo the whole thing. Ok, these things happen, even among the best of us, so I started all over again and when I was half way… BAM!!! [...]
Sony HDR FX1 camcorder review – updated
Jump to updated part >> I had mixed feelings after reading the reviews about the Sony HDR FX1 camcorder which is already on the market for some time (beginning 2005, if I’m correct). But I luckily found a video demo from a professional guy who made a fashion movie with it. This convinced me that [...]
For video an extra hard drive is no luxury – part I
Whether you have a laptop or a desktop computer, when you create lots of video and audio, an extra hard drive is no luxury because videos and audios not only take up a lot of space, they fragment your hard drive as well. “What’s that?”, I hear you say, so let me explain: Try to [...]
Uploading big movies? Reset your Power Saving options.
Today I uploaded a video to YouTube of 459MB. It was a video of only 1 minute, but it contained only graphics and then you really want no compression before you upload or the result will be awful. It took about 5 hours and the end result was very peculiar because it was upside down [...]
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