diff options
Diffstat (limited to 'Game/Code/Classes/URecord.pas')
| -rw-r--r-- | Game/Code/Classes/URecord.pas | 117 |
1 files changed, 50 insertions, 67 deletions
diff --git a/Game/Code/Classes/URecord.pas b/Game/Code/Classes/URecord.pas index 6ce83c0a..03c87a35 100644 --- a/Game/Code/Classes/URecord.pas +++ b/Game/Code/Classes/URecord.pas @@ -1,7 +1,13 @@ unit URecord;
interface
-uses Classes, Math, SysUtils, {DXSounds, Wave, }UMusic, UIni, BASS;
+
+uses Classes,
+ Math,
+ SysUtils,
+ UMusic,
+ UIni,
+ BASS;
type
TSound = class
@@ -11,8 +17,6 @@ type Num: integer;
n: integer; // length of Signal to analyze
-// Spectrum: array[1..8192] of single; // sound buffer from above as FFT
-// Spektogram: array[0..100] of TSpekt; // FFT(t)
// pitch detection
SzczytJest: boolean; // czy jest szczyt
@@ -63,7 +67,7 @@ var Recording: TRecord;
implementation
-uses UMain, ULog;
+uses UMain;
procedure TSound.ProcessNewBuffer;
var
@@ -87,7 +91,8 @@ begin BufferNew.ReadBuffer(BufferArray[1+n-L], 2*L);
// process BufferLong
- if Ini.SavePlayback = 1 then begin
+ if Ini.SavePlayback = 1 then
+ begin
BufferNew.Seek(0, soBeginning);
BufferLong[0].CopyFrom(BufferNew, BufferNew.Size);
end;
@@ -110,32 +115,29 @@ var S: integer; // Signal
Threshold: real; // threshold
begin
-// Log.LogAnalyze('[Analyze by Autocorrelation]');
SzczytJest := false;
// find maximum volume of first 1024 words of signal
MaxV := 0;
- for S := 1 to 1024 do begin // 0.5.2: fix. was from 0 to 1023
-// Log.LogDebug('1');
-// Log.LogDebug(IntTostr(S));
+ for S := 1 to 1024 do // 0.5.2: fix. was from 0 to 1023
+ begin
V := Abs(BufferArray[S]) / $10000;
-// Log.LogDebug('2');
-// Log.LogDebug(IntTostr(S) + ': ' + FloatToStr(V) + ', MaxV='+floattostr(maxv)+', buf='+inttostr(length(BufferArray)));
- if V > MaxV then MaxV := V;
-// Log.LogDebug('3');
-// Log.LogDebug(IntTostr(S) + ': ' + FloatToStr(V) + ', MaxV='+floattostr(maxv)+', buf='+inttostr(length(BufferArray)));
- end;
+ if V > MaxV then
+ MaxV := V;
+ end;
// prepare to analyze
MaxW := 0;
// analyze all 12 halftones
- for T := 0 to 35 do begin // to 11, then 23, now 35 (for Whitney and my high voice)
+ for T := 0 to 35 do // to 11, then 23, now 35 (for Whitney and my high voice)
+ begin
F := 130.81*Power(1.05946309436, T)/2; // let's analyze below 130.81
Wages[T] := AnalyzeAutocorrelationFreq(F);
- if Wages[T] > MaxW then begin // this frequency has better wage
+ if Wages[T] > MaxW then
+ begin // this frequency has better wage
MaxW := Wages[T];
MaxT := T;
end;
@@ -149,20 +151,13 @@ begin 3: Threshold := 0.2;
end;
- //Log.LogDebug('Sound -> AnalyzeByAutocorrelation: MaxV='+floattostr(maxv)+', Threshold='+floattostr(threshold));
- if MaxV >= Threshold then begin // found acceptable volume // 0.1
+ if MaxV >= Threshold then
+ begin // found acceptable volume // 0.1
SzczytJest := true;
TonGamy := MaxT mod 12;
Ton := MaxT mod 12;
end;
-// Log.LogAnalyze('--> Weight: ')
-// Log.LogAnalyze('--> Selected: ' + BoolToStr(SzczytJest, true) +
-// ', TonGamy: ' + IntToStr(Ton) +
-// ', MaxV: ' + FloatToStr(MaxV));
-// Log.LogAnalyze('');
-
-
end;
function TSound.AnalyzeAutocorrelationFreq(Freq: real): real; // result medium difference
@@ -175,25 +170,14 @@ var begin
// we use Signal as source
Count := 0;
- Il := 0;
- Src := 1;
- Move := Round(44100/Freq);
- Dst := Src + Move;
-
- // ver 1 - sample 1 and compare n-times
-{ while (Src <= Move) do begin // process by moving Src by one
- while (Dst < n) do begin // process up to n (4KB) of Signal
- Count := Count + Abs(Signal[Src] - Signal[Dst]) / $10000;
- Inc(Dst, Move);
- Inc(Il);
- end;
-
- Inc(Src);
- Dst := Src + Move;
- end;}
+ Il := 0;
+ Src := 1;
+ Move := Round(44100/Freq);
+ Dst := Src + Move;
// ver 2 - compare in vertical
- while (Dst < n) do begin // process up to n (4KB) of Signal
+ while (Dst < n) do
+ begin // process up to n (4KB) of Signal
Count := Count + Abs(BufferArray[Src] - BufferArray[Dst]) / $10000;
Inc(Src);
Inc(Dst);
@@ -208,8 +192,6 @@ var L: integer;
S: integer;
PB: pbytearray;
- PW: pwordarray;
- SI: smallintarray;
PSI: psmallintarray;
I: integer;
Skip: integer;
@@ -217,8 +199,6 @@ var P2: integer;
Boost: byte;
begin
-// Log.LogDebug('Record -> GetMicrophone: len='+inttstr(len));
-
// set boost
case Ini.MicBoost of
0: Boost := 1;
@@ -230,7 +210,8 @@ begin // boost buffer
L := Len div 2; // number of samples
PSI := Buffer;
- for S := 0 to L-1 do begin
+ for S := 0 to L-1 do
+ begin
I := PSI^[S] * Boost;
if I > 32767 then I := 32767; // 0.5.0: limit
if I < -32768 then I := -32768; // 0.5.0: limit
@@ -241,37 +222,36 @@ begin P1 := (user and 255) - 1;
P2 := (user div 256) - 1;
-// Log.LogDebug('Record -> GetMicrophone: P1='+inttostr(p1)+', P2='+inttostr(p2));
// 2 players USB mic, left channel
- if P1 >= 0 then begin
- L := Len div 4; // number of samples
+ if P1 >= 0 then
+ begin
+ L := Len div 4; // number of samples
PB := Buffer;
-// Log.LogDebug('Record -> GetMicrophone -> Sound[P1].BufferNew.Clear');
+
Sound[P1].BufferNew.Clear; // 0.5.2: problem on exiting
- for S := 1 to L do begin
+ for S := 1 to L do
+ begin
Sound[P1].BufferNew.Write(PB[(S-1)*4], 2);
end;
Sound[P1].ProcessNewBuffer;
end;
// 2 players USB mic, right channel
-// if Ini.Debug = 0 then Skip := 2
-// else Skip := 0;
Skip := 2;
- if P2 >= 0 then begin
+ if P2 >= 0 then
+ begin
L := Len div 4; // number of samples
PB := Buffer;
Sound[P2].BufferNew.Clear;
- for S := 1 to L do begin
+ for S := 1 to L do
+ begin
Sound[P2].BufferNew.Write(PB[Skip + (S-1)*4], 2);
end;
Sound[P2].ProcessNewBuffer;
end;
-// Log.LogDebug('Record -> GetMicrophone -> Finish');
-
Result := true;
end;
@@ -283,6 +263,7 @@ var InputName: PChar;
Flags: integer;
No: integer;
+
function isDuplicate(Desc: String): Boolean;
var
I: Integer;
@@ -306,15 +287,17 @@ begin SC := 0;
Descr := BASS_RecordGetDeviceDescription(SC);
- while (Descr <> '') do begin
+ while (Descr <> '') do
+ begin
//If there is another SoundCard with the Same ID, Search an available Name
if (IsDuplicate(Descr)) then
begin
No:= 1; //Count of SoundCards with same Name
Repeat
- Inc(No)
+ Inc(No)
Until not IsDuplicate(Descr + ' (' + InttoStr(No) + ')');
+
//Set Description
Descr := Descr + ' (' + InttoStr(No) + ')';
end;
@@ -333,12 +316,12 @@ begin SoundCard[SC].Input[SCI].Name := InputName;
// process each input
- while (InputName <> nil) do begin
+ while (InputName <> nil) do
+ begin
Flags := BASS_RecordGetInput(SCI);
- if (SCI >= 1) {AND (Flags AND BASS_INPUT_OFF = 0)} then begin
-
+ if (SCI >= 1) {AND (Flags AND BASS_INPUT_OFF = 0)} then
+ begin
SetLength(SoundCard[SC].Input, SCI+1);
-
SoundCard[SC].Input[SCI].Name := InputName;
end;
@@ -346,18 +329,18 @@ begin if ((Flags and BASS_INPUT_TYPE_MIC) = 1) then
SoundCard[SC].MicInput := SCI;
-
Inc(SCI);
InputName := BASS_RecordGetInputName(SCI);
end;
-
BASS_RecordFree;
Inc(SC);
Descr := BASS_RecordGetDeviceDescription(SC);
end; // while
end;
+
+
end.
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