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LoginGeneral Tech Bugs & Fixes 2 years ago
Posted on 28 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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manpreet
Best Answer
2 years ago
This is my struct
I have this variable
WAVEHDR waveHeader;
I record 10 secs from microphone and
waveHeader->lpData
has my raw recorded data, andwaveHeader->dwBytesRecorded
is the raw data's lengthNow I want to calculate the volume in each second to say which second has highest volume and which one has the lowest.
I know I should sum the absolute values and divide by the number of samples
I used
sum += abs(waveHeader->lpData[i]);
for i from 0 to length of one secs data, but it doesn't give me a good resultit always gives me the same result for each second, but I am silent in some seconds and speak in some...
I read I have to add samples, not bytes How should I convert
waveHeader->lpData[i]
to samples?