oversampling

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oversampling

Multiplying the number of samples in a digital signal by some factor. For example, the early CD players were improved when their digital audio signals were multiplied 8 times before sending them to the digital-to-analog converter (DAC). The digital filters were found to operate more efficiently at higher frequencies. See upsampling.
References in periodicals archive ?
The sample consisted of 1,500 permanent residents of Moldova older than the age of 18 and eligible to vote with an oversample in the capital Chisinau.
Mostly that's because polls rarely take the time and money to oversample for Asians or do translated poll questions.
National surveys routinely oversample populations of policy interest.
The base sample is 1,200 plus an oversample of 256 AfricanAmericans, and 250 Hispanics, bringing the oversample for both communities to 400each.
Our main goal is to develop oversample filter bank with more no.
The new survey will include an oversample of both African- American and Hispanic respondents, and will provide information on what messages are likely to be most effective.
This eight-to-one oversample worked well and is still operating in that configuration.
The 2012 Xylem Value of Water Index is based on a telephone study of 1,008 American voters age 18 years and older and an oversample of 250 New York City residents.
Initially oversample factor 4 and 8 are selected, which cannot give resultant near perfect input.