diff --git a/src/import/ImportFFmpeg.cpp b/src/import/ImportFFmpeg.cpp
index 24814b193..f5f7177c4 100644
--- a/src/import/ImportFFmpeg.cpp
+++ b/src/import/ImportFFmpeg.cpp
@@ -516,7 +516,7 @@ ProgressResult FFmpegImportFileHandle::Import(WaveTrackFactory *trackFactory,
       sc->m_initialchannels = sc->m_stream->codec->channels;
       stream.resize(sc->m_stream->codec->channels);
       for (auto &channel : stream)
-         channel = trackFactory->NewWaveTrack(sc->m_osamplefmt, sc->m_stream->codec->sample_rate);
+         channel = NewWaveTrack(*trackFactory, sc->m_osamplefmt, sc->m_stream->codec->sample_rate);
    }
 
    // Handles the start_time by creating silence. This may or may not be correct.
diff --git a/src/import/ImportMP3.cpp b/src/import/ImportMP3.cpp
index 4529247ff..0f66adabf 100644
--- a/src/import/ImportMP3.cpp
+++ b/src/import/ImportMP3.cpp
@@ -64,7 +64,6 @@ static Importer::RegisteredUnusableImportPlugin registered
 #include "../Prefs.h"
 #include "../Tags.h"
 #include "../WaveTrack.h"
-#include "../prefs/QualityPrefs.h"
 #include "../widgets/AudacityMessageBox.h"
 #include "../widgets/ProgressDialog.h"
 
@@ -1034,11 +1033,12 @@ enum mad_flow MP3ImportFileHandle::OutputCB(struct mad_header const * WXUNUSED(h
 
       mChannels.resize(mNumChannels);
 
-      auto format = QualityPrefs::SampleFormatChoice();
-
       for (auto &channel: mChannels)
       {
-         channel = mTrackFactory->NewWaveTrack(format, pcm->samplerate);
+         // Mad library header explains the 32 bit fixed point format with
+         // 28 fractional bits.  Effective sample format must therefore be
+         // more than 24, and this is our only choice now.
+         channel = NewWaveTrack(*mTrackFactory, floatSample, pcm->samplerate);
       }
    }