diff --git a/modules/dasAudio/audio/audio_boost.das b/modules/dasAudio/audio/audio_boost.das
index 1394d503e..2e64a0c8c 100644
--- a/modules/dasAudio/audio/audio_boost.das
+++ b/modules/dasAudio/audio/audio_boost.das
@@ -194,7 +194,7 @@ class AudioChannel
         if inputFrames != outputFrames
             // resample
             var temp : array<float>
-            temp |> resize(int(outputFrames) * channels)
+            temp |> resize(int(outputFrames) * source.channels)
             ma_resampler_process_pcm_frames(unsafe(addr(resampler)),
                 unsafe(addr(samples[0])),
                 unsafe(addr(inputFrames)),