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Merge pull request #47 from moddevices/optimize-audio-level-loop

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Optimize audio level loop code
This commit is contained in:
Mike Oliphant
2023-08-16 12:13:29 -07:00
committed by GitHub
parent fbf05b4472 6f1a423b5a
commit 88c8441f0b
1 changed files with 13 additions and 7 deletions
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src/nam_plugin.cpp
+13 -7
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@@ -226,26 +226,30 @@ namespace NAM {
}
}
float level;
// convert input level from db
float desiredInputLevel = powf(10, *(ports.input_level) * 0.05f);
if (fabs(desiredInputLevel - inputLevel) > SMOOTH_EPSILON)
{
level = inputLevel;
for (unsigned int i = 0; i < n_samples; i++)
{
// do very basic smoothing
inputLevel = (.99f * inputLevel) + (.01f * desiredInputLevel);
level = (.99f * level) + (.01f * desiredInputLevel);
ports.audio_out[i] = ports.audio_in[i] * inputLevel;
ports.audio_out[i] = ports.audio_in[i] * level;
}
inputLevel = level;
}
else
{
inputLevel = desiredInputLevel;
level = inputLevel = desiredInputLevel;
for (unsigned int i = 0; i < n_samples; i++)
{
ports.audio_out[i] = ports.audio_in[i] * inputLevel;
ports.audio_out[i] = ports.audio_in[i] * level;
}
}
@@ -265,21 +269,23 @@ namespace NAM {
if (fabs(desiredOutputLevel - outputLevel) > SMOOTH_EPSILON)
{
level = outputLevel;
for (unsigned int i = 0; i < n_samples; i++)
{
// do very basic smoothing
outputLevel = (.99f * outputLevel) + (.01f * desiredOutputLevel);
level = (.99f * level) + (.01f * desiredOutputLevel);
ports.audio_out[i] = outputPtrs[0][i] * outputLevel;
}
outputLevel = level;
}
else
{
outputLevel = desiredOutputLevel;
level = outputLevel = desiredOutputLevel;
for (unsigned int i = 0; i < n_samples; i++)
{
ports.audio_out[i] = outputPtrs[0][i] * outputLevel;
ports.audio_out[i] = outputPtrs[0][i] * level;
}
}
}