diff --git a/src/audio/XAudio27API.cpp b/src/audio/XAudio27API.cpp
index 401b78230..cfb21c671 100644
--- a/src/audio/XAudio27API.cpp
+++ b/src/audio/XAudio27API.cpp
@@ -33,8 +33,8 @@ XAudio27API::XAudio27API(uint32 device_id, uint32 samplerate, uint32 channels, u
 	m_wfx.Format.nChannels = channels;
 	m_wfx.Format.nSamplesPerSec = samplerate;
 	m_wfx.Format.wBitsPerSample = bits_per_sample;
-	m_wfx.Format.nBlockAlign = (m_wfx.Format.nChannels * m_wfx.Format.wBitsPerSample) / 8; // must equal (nChannels � wBitsPerSample) / 8
-	m_wfx.Format.nAvgBytesPerSec = m_wfx.Format.nSamplesPerSec * m_wfx.Format.nBlockAlign; // must equal nSamplesPerSec � nBlockAlign.
+	m_wfx.Format.nBlockAlign = (m_wfx.Format.nChannels * m_wfx.Format.wBitsPerSample) / 8; // must equal (nChannels × wBitsPerSample) / 8
+	m_wfx.Format.nAvgBytesPerSec = m_wfx.Format.nSamplesPerSec * m_wfx.Format.nBlockAlign; // must equal nSamplesPerSec × nBlockAlign.
 	m_wfx.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
 
 	m_wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;