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-rw-r--r--tests/xttest_scalar.cpp215
1 files changed, 122 insertions, 93 deletions
diff --git a/tests/xttest_scalar.cpp b/tests/xttest_scalar.cpp
index 09f1665..29549b4 100644
--- a/tests/xttest_scalar.cpp
+++ b/tests/xttest_scalar.cpp
@@ -11,7 +11,7 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
{
uint16_t expected = 0;
uint16_t actual = 0;
-
+
GIVEN( "a 512 sample block with a sample rate of 44100" )
{
uint32_t blocksize = 512;
@@ -19,39 +19,40 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
double result = -1.0;
double amplitude = 1.0;
double table[blocksize];
-
+
WHEN( "the frequency is 86.1328125 Hz" ) // period of exactly 512 samples: 1 cycles in the block
{
double frequency = 86.1328125;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
int rv = xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "frequency detection fails correctly (XTRACT_NO_RESULT is returned, result set to 0.0)" )
{
REQUIRE(rv == XTRACT_NO_RESULT);
REQUIRE(result == 0.0);
}
}
-
+
WHEN( "the frequency is 172.265625 Hz" ) // period of exactly 256 samples: 2 cycles in the block
{
double frequency = 172.265625;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
int rv = xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "frequency detection fails correctly (XTRACT_NO_RESULT is returned, result set to 0.0)" )
{
REQUIRE(rv == XTRACT_NO_RESULT);
REQUIRE(result == 0.0);
}
}
-
+
+
WHEN( "the frequency is 344.53125 Hz" ) // period of exactly 128 samples: 4 cycles in the block
{
double frequency = 344.53125;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
xtract_f0(table, blocksize, &samplerate, &result);
@@ -63,15 +64,15 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
CAPTURE( expected );
REQUIRE(actual == expected);
}
-
-
+
+
WHEN( "the amplitude is 0.01" ) // Only test a different amplitude for one case
{
double amplitude = 0.01;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest MIDI cent" )
{
actual = xttest_ftom(result);
@@ -83,22 +84,22 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
}
}
}
-
+
GIVEN( "a 1024 sample block with a sample rate of 44100" )
{
uint32_t blocksize = 1024;
double samplerate = 44100;
double result = -1.0;
+ double amplitude = 1.0;
double table[blocksize];
WHEN( "the frequency is 86.1328125 Hz" ) // period of exactly 512 samples: 2 cycles in the block
{
double frequency = 86.1328125;
- double amplitude = 1.0;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
int rv = xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "frequency detection fails correctly (XTRACT_NO_RESULT is returned, result set to 0.0)" )
{
REQUIRE(rv == XTRACT_NO_RESULT);
@@ -106,10 +107,44 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
}
}
+ WHEN( "the frequency is 140 Hz" ) // period of 315 samples: 3.25 cycles in the block
+ {
+ double frequency = 140;
+
+ xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
+ xtract_f0(table, blocksize, &samplerate, &result);
+
+ THEN( "the detected F0 is accurate to the nearest MIDI cent" )
+ {
+ actual = xttest_ftom(result);
+ expected = xttest_ftom(frequency);
+ CAPTURE( actual );
+ CAPTURE( expected );
+ REQUIRE(actual == expected);
+ }
+ }
+
+ WHEN( "the frequency is 155 Hz" ) // period of 284.52 samples: 3.6 cycles in the block
+ {
+ double frequency = 155;
+
+ xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
+ xtract_f0(table, blocksize, &samplerate, &result);
+
+ THEN( "the detected F0 is quantized to the nearest whole number of samples" )
+ {
+ actual = xttest_ftom(result);
+ expected = xttest_ftom(155.28169014); // period of 284 samples
+ CAPTURE( result );
+ CAPTURE( expected );
+ REQUIRE(actual == expected);
+ }
+ }
+
+
WHEN( "the frequency is 172.265625 Hz" ) // period of exactly 256 samples: 4 cycles in the block
{
double frequency = 172.265625;
- double amplitude = 1.0;
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
xtract_f0(table, blocksize, &samplerate, &result);
@@ -127,13 +162,12 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
WHEN( "the frequency is 344.53125 Hz" ) // period of exactly 128 samples: 8 cycles in the block
{
double frequency = 344.53125;
+ double noise[blocksize];
expected = xttest_ftom(frequency);
CAPTURE( expected );
WHEN( "the amplitude is 1.0" )
{
- double amplitude = 1.0;
-
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
xtract_f0(table, blocksize, &samplerate, &result);
@@ -144,10 +178,10 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE(actual == expected);
}
}
-
+
WHEN( "the amplitude is 0.01" ) // Only test a different amplitude for one case
{
- double amplitude = 0.01;
+ amplitude = 0.01;
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
xtract_f0(table, blocksize, &samplerate, &result);
@@ -159,17 +193,16 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE(actual == expected);
}
}
-
+
WHEN( "white noise is added at 10%" ) // Only test noise for one case
{
- double amplitude = 0.1;
- double noise[blocksize];
-
+ amplitude = 0.1;
+
xttest_gen_sine(table, blocksize, samplerate, frequency, 1.0 - amplitude);
xttest_gen_noise(noise, blocksize, amplitude);
xttest_add(table, noise, blocksize);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest MIDI cent" )
{
actual = xttest_ftom(result);
@@ -177,17 +210,16 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE(actual == expected);
}
}
-
+
WHEN( "white noise is added at 20%" )
{
- double amplitude = 0.2;
- double noise[blocksize];
-
+ amplitude = 0.2;
+
xttest_gen_sine(table, blocksize, samplerate, frequency, 1.0 - amplitude);
xttest_gen_noise(noise, blocksize, amplitude);
xttest_add(table, noise, blocksize);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest MIDI cent" )
{
actual = xttest_ftom(result);
@@ -195,17 +227,16 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE(actual == expected);
}
}
-
+
WHEN( "white noise is added at 25%" )
{
- double amplitude = 0.25;
- double noise[blocksize];
-
+ amplitude = 0.25;
+
xttest_gen_sine(table, blocksize, samplerate, frequency, 1.0 - amplitude);
xttest_gen_noise(noise, blocksize, amplitude);
xttest_add(table, noise, blocksize);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest semitone" )
{
actual = xttest_ftom(result);
@@ -216,17 +247,16 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE( actual < max );
}
}
-
+
WHEN( "white noise is added at 30%" )
{
- double amplitude = 0.25;
- double noise[blocksize];
-
+ amplitude = 0.25;
+
xttest_gen_sine(table, blocksize, samplerate, frequency, 1.0 - amplitude);
xttest_gen_noise(noise, blocksize, amplitude);
xttest_add(table, noise, blocksize);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest quarter-tone" )
{
actual = xttest_ftom(result);
@@ -237,17 +267,16 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE( actual < max );
}
}
-
+
WHEN( "white noise is added at 35%" )
{
- double amplitude = 0.35;
- double noise[blocksize];
-
+ amplitude = 0.35;
+
xttest_gen_sine(table, blocksize, samplerate, frequency, 1.0 - amplitude);
xttest_gen_noise(noise, blocksize, amplitude);
xttest_add(table, noise, blocksize);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is inaccurate by more than one semitone" )
{
actual = xttest_ftom(result);
@@ -258,22 +287,22 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
}
}
}
-
+
GIVEN( "a 1024 sample block with a sample rate of 11025" )
{
uint32_t blocksize = 1024;
double samplerate = 11025;
double result = -1.0;
double table[blocksize];
-
+
WHEN( "the frequency is 86.1328125 Hz" ) // period of exactly 512 samples: 2 cycles in the block
{
double frequency = 86.1328125;
double amplitude = 1.0;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
int rv = xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest MIDI cent" )
{
actual = xttest_ftom(result);
@@ -281,17 +310,17 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
CAPTURE( actual );
CAPTURE( expected );
REQUIRE(actual == expected);
- }
+ }
}
-
+
WHEN( "the frequency is 172.265625 Hz" ) // period of exactly 256 samples: 4 cycles in the block
{
double frequency = 172.265625;
double amplitude = 1.0;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest MIDI cent" )
{
actual = xttest_ftom(result);
@@ -301,20 +330,20 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE(actual == expected);
}
}
-
+
WHEN( "the frequency is 344.53125 Hz" ) // period of exactly 128 samples: 8 cycles in the block
{
double frequency = 344.53125;
expected = xttest_ftom(frequency);
CAPTURE( expected );
-
+
WHEN( "the amplitude is 1.0" )
{
double amplitude = 1.0;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest MIDI cent" )
{
actual = xttest_ftom(result);
@@ -322,14 +351,14 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE(actual == expected);
}
}
-
+
WHEN( "the amplitude is 0.01" ) // Only test a different amplitude for one case
{
double amplitude = 0.01;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest MIDI cent" )
{
actual = xttest_ftom(result);
@@ -337,17 +366,17 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE(actual == expected);
}
}
-
+
WHEN( "white noise is added at 20%" )
{
double amplitude = 0.2;
double noise[blocksize];
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, 1.0 - amplitude);
xttest_gen_noise(noise, blocksize, amplitude);
xttest_add(table, noise, blocksize);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest quarter-tone" )
{
actual = xttest_ftom(result);
@@ -356,19 +385,19 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
CAPTURE( actual );
REQUIRE( actual > min );
REQUIRE( actual < max );
- }
+ }
}
-
+
WHEN( "white noise is added at 40%" )
{
double amplitude = 0.4;
double noise[blocksize];
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, 1.0 - amplitude);
xttest_gen_noise(noise, blocksize, amplitude);
xttest_add(table, noise, blocksize);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest semi-tone" )
{
actual = xttest_ftom(result);
@@ -377,19 +406,19 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
CAPTURE( actual );
REQUIRE( actual > min );
REQUIRE( actual < max );
- }
+ }
}
-
+
WHEN( "white noise is added at 60%" )
{
double amplitude = 0.6;
double noise[blocksize];
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, 1.0 - amplitude);
xttest_gen_noise(noise, blocksize, amplitude);
xttest_add(table, noise, blocksize);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest semi-tone" )
{
actual = xttest_ftom(result);
@@ -398,20 +427,20 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
CAPTURE( actual );
REQUIRE( actual > min );
REQUIRE( actual < max );
- }
+ }
}
-
+
WHEN( "white noise is added at 80%" )
{
double amplitude = 0.8;
double noise[blocksize];
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, 1.0 - amplitude);
xttest_gen_noise(noise, blocksize, amplitude);
xttest_add(table, noise, blocksize);
xtract_f0(table, blocksize, &samplerate, &result);
-
- THEN( "the detected F0 is inaccurate by more than one semitone" )
+
+ THEN( "the detected F0 is inaccurate by more than one semitone" )
{
actual = xttest_ftom(result);
uint16_t difference = abs(expected - actual);
@@ -421,37 +450,37 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
}
}
}
-
+
GIVEN( "a 2048 sample block with a sample rate of 44100" )
{
uint32_t blocksize = 2048;
double samplerate = 44100;
double result = -1.0;
double table[blocksize];
-
+
WHEN( "the frequency is 43.06640625 Hz" ) // period of exactly 256 samples: 2 cycles in the block
{
double frequency = 43.06640625;
double amplitude = 1.0;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
int rv = xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "frequency detection fails correctly (XTRACT_NO_RESULT is returned, result set to 0.0)" )
{
REQUIRE(rv == XTRACT_NO_RESULT);
REQUIRE(result == 0.0);
}
}
-
+
WHEN( "the frequency is 86.1328125 Hz" ) // period of exactly 512 samples: 4 cycles in the block
{
double frequency = 86.1328125;
double amplitude = 1.0;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
int rv = xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest MIDI cent" )
{
actual = xttest_ftom(result);
@@ -461,15 +490,15 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE(actual == expected);
}
}
-
+
WHEN( "the frequency is 172.265625 Hz" ) // period of exactly 256 samples: 8 cycles in the block
{
double frequency = 172.265625;
double amplitude = 1.0;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest MIDI cent" )
{
actual = xttest_ftom(result);
@@ -479,18 +508,18 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
REQUIRE(actual == expected);
}
}
-
+
WHEN( "the frequency is 344.53125 Hz" ) // period of exactly 128 samples: 16 cycles in the block
{
double frequency = 344.53125;
-
+
WHEN( "the amplitude is 1.0" )
{
double amplitude = 1.0;
-
+
xttest_gen_sine(table, blocksize, samplerate, frequency, amplitude);
xtract_f0(table, blocksize, &samplerate, &result);
-
+
THEN( "the detected F0 is accurate to the nearest MIDI cent" )
{
actual = xttest_ftom(result);
@@ -499,7 +528,7 @@ SCENARIO( "F0 is correctly detected for a sine wave", "[xtract_f0]" )
CAPTURE( expected );
REQUIRE(actual == expected);
}
- }
+ }
}
}
}
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