Multitone is currently in beta test. Use at your own risk!
Supported variables
Variables can be inserted into any expression at any point by enclosing them in { } charactersExample 1:
Sample Rate is {recordSampleRate} Hz
Example 2:
Sample Rate is {recordSampleRate} Hz and {playSampleRate} Hz
Multiple variables can be inserted into the same result. If two channel measurements are made, all variables can be used with number 1 or 2 added at the end to refer to the same variable results in that specific channel. All variables without the appended channel number will automatically reflect the value for the channel in which the results are displayed.
Example:
THD in {channel2} is {thd2}dB
Calculations can be used combining multiple variables (see Supported Operators and Math functions below).
Example:
THD measured in {channel} is {(10^(thd/20))*100:G}%
Formatting can be applied to displayed variables by putting optional ':' character after the variable or expression, and then adding the desired format.
Numeric variables are displayed, by default, with all whole digits, and one decimal fraction. To add additional decimal points, use a format of this form:
{thd:0.0000000}
for example. To display the number in scientific notation, use {tdn:G}
. Many other formatting options are available.
Here's the list of variables available for display or to be used in a calculation. All numeric variables that can be, are expressed in dB. You can convert them to other desired units by adding a calcluation.
Variable  Description 

level  Peak level of the recorded signal (dB) 
levelRMS  RMS level of the recorded signal (dB) 
dc  DC level of the rcorded sisgnal (dB) 
gain  Play Gain setting during recording (dB) 
tdn  Measured TD+N total distortion + noise(dB) 
thd  Measured THD total harmonic distortion (dB) 
imd  Measured IMD intermodulation distortion (dB) 
snr  Mesaured SNR signaltonoise ratio (dB) 
noise  Measured noise level (dB) 
sfdr  Measured SFDR spurious free dynamic range (dB) 
sfdrFreq  Frequency where SFDR was measured (Hz) 
enob  Measured ENOB effective number of bits 
freqH1  Frequency of the fundamental component (Hz) 
amplH1  Amplitude of the fundamental component (dB) 
testSignal  Name of the test signal used to measure (text) 
tones  Number of individual sinewave tones in the test signal 
crest  Crest Factor of the test signal 
fftSize  FFT size used for analysis 
window  FFT window used for analysis (text) 
fromFreq  Lowest measured frequency (Hz) 
toFreq  Highest measured frequency (Hz) 
averages  Number of averages collected 
overlap  Average Overlap (%) 
playSampleRate  Output sample rate (Hz) 
recordSampleRate  Input sample rate (Hz) 
ResultLabel  Text label assigned to this measurement in history 
channel  Channel label used for this result (text) 
channelNumber  Channel 0 or 1 used for this result 
channelsIn  Channels selector for ADC 
channelsOut  Channels selector for DAC 
driverIn  Audio driver used for input 
driverOut  Audio driver used for output 
resultTitle  FFT size used for analysis 
Supported operators, constants and functions
Supported Operators
Operator  Description 

+  Additive operator / Unary plus / Concatenate string / Datetime addition 
&  Concatenate string 
–  Subtraction operator / Unary minus / Datetime subtraction 
*  Multiplication operator, can be omitted in front of an open bracket 
/  Division operator 
%  Remainder operator (Modulo) 
^  Power operator 
Supported conditional statements
Conditional statement  Description 

IF(logical_condition, value_if_true, value_if_false)  Example:IF(2>1,"Pass","Fail") 
SWITCH(expression, val1,result1, [val2,result2], …, [default])  Example:SWITCH(3+2,5,"Apple",7,"Mango",3,"Good","N/A") 
Supported logical and math functions
Function^{*}  Description 

AND(logical1, [logical2], …)  Determine if all conditions are TRUE 
OR(logical1, [logical2], …)  Determine if any conditions in a test are TRUE 
NOT(logical)  To confirm one value is not equal to another 
XOR(logical1, [logical2], …)  Exclusive OR function 
SUM(number1, [number2],…)  Return sum of numbers supplied 
AVERAGE(number1, [number2],…)  Return average of numbers supplied 
MIN(number1, [number2],…)  Return the smallest value from the numbers supplied 
MAX(number1, [number2],…)  Return the biggest value from the numbers supplied 
MOD(number, divisor)  Get remainder of two given numbers after division operator. 
ROUND(number, num_digits)  Returns the rounded approximation of given number using halfeven rounding mode ( you can change to another rounding mode) 
FLOOR(number, significance)  Rounds a given number towards zero to the nearest multiple of a specified significance 
CEILING (number, significance)  Rounds a given number away from zero, to the nearest multiple of a given number 
POWER(number, power)  Returns the result of a number raised to a given power 
RAND()  Produces a random number between 0 and 1 
SIN(number)  Returns the trigonometric sine of the angle given in radians 
SINH(number)  Returns the hyperbolic sine of a number 
ASIN(number)  Returns the arc sine of an angle, in the range of pi/2 through pi/2 
COS(number)  Returns the trigonometric cos of the angle given in radians 
COSH(number)  Returns the hyperbolic cos of a number 
ACOS(number)  Returns the arc cosine of an angle, in the range of 0.0 through pi 
TAN(number)  Returns the tangent of the angle given in radians 
TANH(number)  Returns the hyperbolic tangent of a number 
ATAN(number)  Returns the arc tangent of an angle given in radians 
ATAN2(x_number, y_number)  Returns the arctangent from x and ycoordinates 
COT(number)  Returns the cotangent of an angle given in radians. 
COTH(number)  Returns the hyperbolic cotangent of a number 
SQRT(number)  Returns the correctly rounded positive square root of given number 
LN(number)  Returns the natural logarithm (base e) of given number 
LOG10(number)  Returns the logarithm (base 10) of given number 
EXP(number)  Returns e raised to the power of given number 
ABS(number)  Returns the absolute value of given number 
FACT(number)  Returns the factorial of a given number 
SEC(number)  Returns the secant of an angle given in radians 
CSC(number)  Returns the cosecant of an angle given in radians 
PI()  Return value of Pi 
RADIANS(degrees)  Convert degrees to radians 
DEGREES (radians)  Convert radians to degrees 
INT(number)  Returns the Integer value of given number 
Supported Constants
Constant  Description 

e  The value of e 
PI  The value of PI 
TRUE  The boolean true value 
FALSE  The boolean false value 
NULL  The null value 
Supported text functions
Function  Description 

LEFT(text, num_chars)  Extracts a given number of characters from the left side of a supplied text string 
RIGHT(text, num_chars)  Extracts a given number of characters from the right side of a supplied text string 
MID(text, start_num, num_chars)  Extracts a given number of characters from the middle of a supplied text string 
REVERSE(text)  Reverse a string 
ISNUMBER(text)  Check if a value is a number 
LOWER(text)  Converts all letters in the specified string to lowercase 
UPPER(text)  Converts all letters in the specified string to uppercase 
PROPER(text)  Capitalizes words given text string 
TRIM(text)  Removes extra spaces from text 
LEN(text)  Returns the length of a string/ text 
TEXT(value, [format_text])  Convert a numeric value into a text string. You can use the TEXT function to embed formatted numbers inside text Example:

REPLACE(old_text, start_num, num_chars, new_text)  Replaces characters specified by location in a given text string with another text string 
SUBSTITUTE(text, old_text, new_text)  Replaces a set of characters with another 
FIND(find_text, within_text, [start_num])  Returns the location of a substring in a string (case sensitive) 
SEARCH(find_text, within_text, [start_num])  Returns the location of a substring in a string (case insensitive) 
CONCAT(text1, text2, text3,…)  Combines the text from multiple strings 
ISBLANK(text)  Returns TRUE when a given string is null or empty, otherwise return FALSE 
REPT(text, repeat_time)  Repeats characters a given number of times 
CHAR(char_code)  Return character from ascii code 
CODE(char)  Returns a ascii code of a character 
VALUE(text)  Convert numbers stored as text to numbers 