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-rw-r--r--libs/backends/dummy/dummy_audiobackend.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/libs/backends/dummy/dummy_audiobackend.cc b/libs/backends/dummy/dummy_audiobackend.cc
index 1428dc28a2..050e99435c 100644
--- a/libs/backends/dummy/dummy_audiobackend.cc
+++ b/libs/backends/dummy/dummy_audiobackend.cc
@@ -1621,7 +1621,7 @@ void DummyAudioPort::setup_generator (GeneratorType const g, float const sampler
#else
const double phase = a * exp (b * j) - a;
#endif
- _wavetable[i] = (float)sin (2. * M_PI * (phase - floor (phase)));
+ _wavetable[i] = -(float)sin (2. * M_PI * (phase - floor (phase)));
}
if (_gen_type == SquareSweep) {
for (uint32_t i = 0 ; i < _gen_period; ++i) {