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-rw-r--r--libs/ardour/amp.cc8
1 files changed, 8 insertions, 0 deletions
diff --git a/libs/ardour/amp.cc b/libs/ardour/amp.cc
index c62bb7ff69..8b55b8ca8d 100644
--- a/libs/ardour/amp.cc
+++ b/libs/ardour/amp.cc
@@ -403,6 +403,14 @@ Amp::set_state (const XMLNode& node, int version)
void
Amp::GainControl::set_value (double val)
{
+ if (writable()) {
+ set_value_unchecked (val);
+ }
+}
+
+void
+Amp::GainControl::set_value_unchecked (double val)
+{
AutomationControl::set_value (std::max (std::min (val, (double)_desc.upper), (double)_desc.lower));
_amp->session().set_dirty ();
}