diff --git a/src/devices/sound/disc_inp.hxx b/src/devices/sound/disc_inp.hxx
index 51519169767..baf4088d024 100644
--- a/src/devices/sound/disc_inp.hxx
+++ b/src/devices/sound/disc_inp.hxx
@@ -312,7 +312,7 @@ void DISCRETE_CLASS_NAME(dss_input_stream)::stream_start(void)
 		discrete_sound_device *snd_device = downcast<discrete_sound_device *>(m_device);
 		//assert(DSS_INPUT_STREAM__STREAM < snd_device->m_input_stream_list.count());
 
-		m_buffer_stream = m_device->machine().sound().stream_alloc(*snd_device, 0, 1, this->sample_rate(), stream_update_delegate(&discrete_dss_input_stream_node::stream_generate,this), STREAM_DEFAULT_FLAGS);
+		m_buffer_stream = m_device->machine().sound().stream_alloc(*snd_device, 1, 1, this->sample_rate(), stream_update_delegate(&discrete_dss_input_stream_node::stream_generate,this), STREAM_DEFAULT_FLAGS);
 
 		// WTF?
 		//		snd_device->get_stream()->set_input(m_stream_in_number, m_buffer_stream);
diff --git a/src/emu/recording.cpp b/src/emu/recording.cpp
index 3cc9fc158b3..91bc0e58bf7 100644
--- a/src/emu/recording.cpp
+++ b/src/emu/recording.cpp
@@ -197,6 +197,8 @@ bool avi_movie_recording::initialize(running_machine &machine, std::unique_ptr<e
 	info.audio_samplebits = 16;
 	info.audio_samplerate = machine.sample_rate();
 
+	m_channels = info.audio_channels;
+
 	// compute the frame time
 	set_frame_period(attotime::from_ticks(info.video_sampletime, info.video_timescale));