diff --git a/libs/ardour/export_graph_builder.cc b/libs/ardour/export_graph_builder.cc
index dd1f1b8417..2ab38cfbb0 100644
--- a/libs/ardour/export_graph_builder.cc
+++ b/libs/ardour/export_graph_builder.cc
@@ -456,7 +456,9 @@ ExportGraphBuilder::SFC::SFC (ExportGraphBuilder &parent, FileSpec const & new_c
 		max_samples = std::min ((samplecnt_t) 8192 * channels, std::max ((samplecnt_t) 4096 * channels, max_samples));
 		chunker.reset (new Chunker<Sample> (max_samples));
 		analyser.reset (new Analyser (config.format->sample_rate(), channels, max_samples,
-					(samplecnt_t) ceil (duration * config.format->sample_rate () / (double) sample_rate)));
+		                              (samplecnt_t) ceil (duration * config.format->sample_rate () / (double) sample_rate),
+		                              800 * ui_scale_factor, 200 * ui_scale_factor
+		                             ));
 
 		config.filename->set_channel_config (config.channel_config);
 		parent.add_analyser (config.filename->get_path (config.format), analyser);
diff --git a/libs/audiographer/audiographer/general/analyser.h b/libs/audiographer/audiographer/general/analyser.h
index b5b3d4c482..9cdab5ac95 100644
--- a/libs/audiographer/audiographer/general/analyser.h
+++ b/libs/audiographer/audiographer/general/analyser.h
@@ -29,7 +29,7 @@ namespace AudioGrapher
 class LIBAUDIOGRAPHER_API Analyser : public LoudnessReader
 {
   public:
-	Analyser (float sample_rate, unsigned int channels, samplecnt_t bufsize, samplecnt_t n_samples);
+	Analyser (float sample_rate, unsigned int channels, samplecnt_t bufsize, samplecnt_t n_samples, size_t width = 800, size_t bins = 200);
 	~Analyser ();
 	void process (ProcessContext<float> const & c);
 	ARDOUR::ExportAnalysisPtr result (bool ptr = false);
diff --git a/libs/audiographer/src/general/analyser.cc b/libs/audiographer/src/general/analyser.cc
index a082359aae..78c6d26cb8 100644
--- a/libs/audiographer/src/general/analyser.cc
+++ b/libs/audiographer/src/general/analyser.cc
@@ -23,9 +23,9 @@ using namespace AudioGrapher;
 
 const float Analyser::fft_range_db (120); // dB
 
-Analyser::Analyser (float sample_rate, unsigned int channels, samplecnt_t bufsize, samplecnt_t n_samples)
+Analyser::Analyser (float sample_rate, unsigned int channels, samplecnt_t bufsize, samplecnt_t n_samples, size_t width, size_t bins)
 	: LoudnessReader (sample_rate, channels, bufsize)
-	, _rp (ARDOUR::ExportAnalysisPtr (new ARDOUR::ExportAnalysis))
+	, _rp (ARDOUR::ExportAnalysisPtr (new ARDOUR::ExportAnalysis (width, bins)))
 	, _result (*_rp)
 	, _n_samples (n_samples)
 	, _pos (0)