diff --git a/R/generateNoise.R b/R/generateNoise.R
index 0e5a0db0..36a5fda9 100644
--- a/R/generateNoise.R
+++ b/R/generateNoise.R
@@ -39,12 +39,13 @@ generateNoise <- function(
       noise,
       duration=duration,
       samp.rate=wave@samp.rate,
-      bit=wave@bit
+      bit=wave@bit,
+      pcm=wave@pcm
     )
   } else {
-    n <- tuneR::silence(duration=duration, samp.rate=wave@samp.rate, bit=wave@bit)
+    n <- tuneR::silence(duration=duration, samp.rate=wave@samp.rate, bit=wave@bit, pcm=wave@pcm)
     for (i in 1:length(noise)) {
-      nw <- tuneR::noise(noise[i], duration=duration, samp.rate=wave@samp.rate, bit=wave@bit)
+      nw <- tuneR::noise(noise[i], duration=duration, samp.rate=wave@samp.rate, bit=wave@bit, pcm=wave@pcm)
       n@left <- n@left + nw@left
     }
   }
diff --git a/R/reticulate-virtualenv.R b/R/reticulate-virtualenv.R
index 9d6a6766..64a93708 100644
--- a/R/reticulate-virtualenv.R
+++ b/R/reticulate-virtualenv.R
@@ -28,7 +28,7 @@ pythonInstall <- function(unattended=FALSE) {
 
   .useUtf8Locale()
   if (!reticulate::virtualenv_exists(envname = "sonicscrewdriver")) {
-    reticulate::virtualenv_create(envname = "sonicscrewdriver", packages=NULL)
+    reticulate::virtualenv_create(envname = "sonicscrewdriver", packages=NULL, version="3.12")
   }
   reticulate::virtualenv_install("sonicscrewdriver", c("scikit-maad", "numpy==1.26.4", "librosa", "tensorflow", "birdnetlib"))
 }
diff --git a/tests/testthat/test-generateNoise.R b/tests/testthat/test-generateNoise.R
index 1487bd92..b7d5814a 100644
--- a/tests/testthat/test-generateNoise.R
+++ b/tests/testthat/test-generateNoise.R
@@ -34,6 +34,13 @@ test_that("generateNoise outputs something Wave-like", {
   expect_s4_class(generateNoise(w, "white", FALSE, 0.5, output="list")[[2]], "WaveMC")
 })
 
+test_that("generateNoise preserves PCM settings from audio read through av", {
+  skip_if_not_installed("av")
+
+  w <- readAudio(system.file("extdata/AUDIOMOTH.flac", package="sonicscrewdriver"))
+  expect_silent(generateNoise(w, "white", FALSE, 0.1, output="list"))
+})
+
 # The thresholds below were set when a pulse peaked at 2^32 rather than at the 1
 # a floating point wave allows, and noise was referenced to that same wrong scale.
 # At a noise ratio of 0.25 the noise now sits near 0.05 of full scale.