@@ 19,9 19,17 @@ type ChannelMixer struct {
 	// optional ?
 	// can be used for wave display (?)
 	// to display current buffer ?
+	// XXX can't be less than tick size ?
 	channelRenderBufAcc [][][2]float64
 	// XXX can be set (?)
+	// XXX can't be less than tick size ?
 	channelRenderBufAccLen int
+	// XXX ?
+	// 44100 = 1 sec (?) (sample rate)
+	// maximum size of channel acc bufer (~1s) (in samples)
+	// prevents buffers form over flowing
+	// conf.sr ?
+	channelRenderBufAccMaxLen int
 	// temp buffers ?
 	// when ready content should be set to
 	// channelRenderBufAcc ?

          
@@ 44,8 52,13 @@ func NewChannelMixer(s *ChannelSys) *Cha
 		channelSys: s,
 		
 		// XXX
-		channelRenderBufAccLen: 200,
+		//channelRenderBufAccLen: 200,
 		//channelRenderBufAccLen: 100,
+		// 1024/44100 = 0.023s
+		// 1024/100 = ~10 buffers (?)
+		// 44100/1024 = ~43 fps (maximum ?)
+		// 44100/100 = ~441 fps (maximum ?)
+		channelRenderBufAccLen: 1024,
 		
 		accumulateBuffers: true,
 		//accumulateBuffers: false,

          
@@ 147,6 160,11 @@ func (cm *ChannelMixer) GetBufForChannel
 	return buf
 }
 
+// take and truncate the accumulation buffer ?
+func (cm *ChannelMixer) TakeFromChannelRenderBufAcc(chId int, n int) [][2]float64 {
+	panic(2)
+}
+
 // XXX
 func (cm *ChannelMixer) GetChannelRenderBufAcc(chId int) [][2]float64 {