diff --git a/common_audio/signal_processing/complex_fft.c b/common_audio/signal_processing/complex_fft.c
index d4666f3598..36689b3c46 100644
--- a/common_audio/signal_processing/complex_fft.c
+++ b/common_audio/signal_processing/complex_fft.c
@@ -134,8 +134,8 @@ int WebRtcSpl_ComplexFFT(int16_t frfi[], int stages, int mode)
                     tr32 >>= 15 - CFFTSFT;
                     ti32 >>= 15 - CFFTSFT;
 
-                    qr32 = ((int32_t)frfi[2 * i]) << CFFTSFT;
-                    qi32 = ((int32_t)frfi[2 * i + 1]) << CFFTSFT;
+                    qr32 = ((int32_t)frfi[2 * i]) * (1 << CFFTSFT);
+                    qi32 = ((int32_t)frfi[2 * i + 1]) * (1 << CFFTSFT);
 
                     frfi[2 * j] = (int16_t)(
                         (qr32 - tr32 + CFFTRND2) >> (1 + CFFTSFT));
@@ -276,8 +276,8 @@ int WebRtcSpl_ComplexIFFT(int16_t frfi[], int stages, int mode)
                     tr32 >>= 15 - CIFFTSFT;
                     ti32 >>= 15 - CIFFTSFT;
 
-                    qr32 = ((int32_t)frfi[2 * i]) << CIFFTSFT;
-                    qi32 = ((int32_t)frfi[2 * i + 1]) << CIFFTSFT;
+                    qr32 = ((int32_t)frfi[2 * i]) * (1 << CIFFTSFT);
+                    qi32 = ((int32_t)frfi[2 * i + 1]) * (1 << CIFFTSFT);
 
                     frfi[2 * j] = (int16_t)(
                         (qr32 - tr32 + round2) >> (shift + CIFFTSFT));
diff --git a/modules/audio_processing/aecm/aecm_core_c.cc b/modules/audio_processing/aecm/aecm_core_c.cc
index 7fd6a499ad..fa5f15cf10 100644
--- a/modules/audio_processing/aecm/aecm_core_c.cc
+++ b/modules/audio_processing/aecm/aecm_core_c.cc
@@ -74,9 +74,9 @@ static void WindowAndFFT(AecmCore* aecm,
   for (i = 0; i < PART_LEN; i++) {
     // Window time domain signal and insert into real part of
     // transformation array |fft|
-    int16_t scaled_time_signal = time_signal[i] << time_signal_scaling;
+    int16_t scaled_time_signal = time_signal[i] * (1 << time_signal_scaling);
     fft[i] = (int16_t)((scaled_time_signal * WebRtcAecm_kSqrtHanning[i]) >> 14);
-    scaled_time_signal = time_signal[i + PART_LEN] << time_signal_scaling;
+    scaled_time_signal = time_signal[i + PART_LEN] * (1 << time_signal_scaling);
     fft[PART_LEN + i] = (int16_t)((
         scaled_time_signal * WebRtcAecm_kSqrtHanning[PART_LEN - i]) >> 14);
   }