I am new to measuring room acoustics. I have a decibel meter like the one shown below, and tested it holding on my hands while the system reproduced 5 second sine waves on the bass range (1 Hz increments from 22 to 65Hz). I wrote down the results and plotted below.
I noticed I should discard <31Hz as the meter is not specified to work on that range.
Question is: how accurate is this? Good enough or rubbish? Any suggestions on how to improve such a crude way of measuring (without USB mic and REW, etc)?
Thanks.
Specifications
• Measures from 30dBA to 130dBA
• Accuracy of +/- 1.5dB
• Resolution to 0.1 dB
• Frequency weighting: A
• Sampling rate of 2x/second
• Frequency response: 31.5Hz ~ 8KHz
I noticed I should discard <31Hz as the meter is not specified to work on that range.
Question is: how accurate is this? Good enough or rubbish? Any suggestions on how to improve such a crude way of measuring (without USB mic and REW, etc)?
Thanks.
Specifications
• Measures from 30dBA to 130dBA
• Accuracy of +/- 1.5dB
• Resolution to 0.1 dB
• Frequency weighting: A
• Sampling rate of 2x/second
• Frequency response: 31.5Hz ~ 8KHz