The most significant difference between single and double system recording is where the audio sound is recorded from. In a double system recording, the images and the sound are recorded in two different devices. Sound is recorded on the first device, and the picture and the reference audio is recorded on the second device. On the other hand, in a single system, the audio is captured silmutaneously with the image on the same device. The double recording system is used more so if you do not have a camera that has an advanced audio quality input. If you have a dedicated audio device that can capture audio on an independent device, then you will be guaranteed to get a robust sound quality.
Answer:
The answer is "Option c"
Explanation:
An Online questionnaire is a research study, that can be conducted across the internet by the targeted audience. It is the primary use for web-based ways to store feedback, and analyses by statistical apps and other choices were wrong, which can be described as follows:
- In option a, It is wrong because experimental is used in factor manipulation.
- In option b, It is not a secondary part of survey, that's why it is incorrect.
- Option d and Options e is used to in survey, but it's not correct.
I am pretty sure it is the XML format
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