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The attached preset can be used for the acoustical testing of a concert hall, listening room, musical instrument, or even the measurement of the internal dimensions of a tubular shaped object using your Diamond Cut software. The overall concept of Acoustic Pulse Reflectometry involves "pinging" the system being evaluated with a short pulse (in this case, a 50 uSec pulse) with a transducer (loudspeaker system or similar device) and then measuring the returned response delay time.
One instance of your Diamond Cut software can be used to provide the stimulus "ping" while a second instance can be used to measure the systems response on its Time Domain Display.
You will need to use a good sound card having at least a 96KHz sampling rate capability. You will also need a good loudspeaker system connected to a high output power amplifier for this to work correctly, especially in large concert halls. You will also need a good microphone to measure the systems response to the "ping".
The impulse is created by setting up the following wavefile and then running (or previewing) the attached Multifilter preset on that signal. This preset actually acts as a Square Wave to 50 uSec (microsecond) impulse converter. Here are the paramaters for the Make Waves Generator used to stimulate the 50 uSec pulse converter preset:
Frequency: 0.5 Hz
Amplitide: 0 dB Peak
Length: 60 Seconds minimum
File Type: Mono
Sample Rate: 96 KHz
Wave Shape: Square Wave
Resolution: 16 Bits
This setup will produce 50 uSec Impulses having a 1 pulse per second repetition rate.
Note: Sound propagates at a rate of around 1 foot per millisecond
One instance of your Diamond Cut software can be used to provide the stimulus "ping" while a second instance can be used to measure the systems response on its Time Domain Display.
You will need to use a good sound card having at least a 96KHz sampling rate capability. You will also need a good loudspeaker system connected to a high output power amplifier for this to work correctly, especially in large concert halls. You will also need a good microphone to measure the systems response to the "ping".
The impulse is created by setting up the following wavefile and then running (or previewing) the attached Multifilter preset on that signal. This preset actually acts as a Square Wave to 50 uSec (microsecond) impulse converter. Here are the paramaters for the Make Waves Generator used to stimulate the 50 uSec pulse converter preset:
Frequency: 0.5 Hz
Amplitide: 0 dB Peak
Length: 60 Seconds minimum
File Type: Mono
Sample Rate: 96 KHz
Wave Shape: Square Wave
Resolution: 16 Bits
This setup will produce 50 uSec Impulses having a 1 pulse per second repetition rate.
Note: Sound propagates at a rate of around 1 foot per millisecond