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[Irrational86]

I'm surprised you was not able to reproduce the problem as i'm having the problem to all my users on very different hardware/os systems. Note that the problem occurs when starting play the file from the absolute begin position; if i seek the start position of 1 or 2 seconds then it play fine.

I had this happen to me when I used the (AutoAmp) code that Ian posted on this board a long time ago. It is due to the amount of silence in the begining of the file. Since the concept of the AutoAmp is to reduce the volume even more when it is below certain level, it will keep reducing the Gain factor, making the factor so small, that to increase it to a normal (louder) volume takes time, or never happens...

The fix is to make some checks and not let the AmpGain go toooo low...

[MB_SOFT]

Hi Jobnik,
i sent you a private message with a link to a small application test that hopefully will demonstrate you the "silence" problem..

Let me know your results...

thank you
Maurizio

[(: JOBnik! :)]

Hi

BASS_FX is updated to version 2.1.0.2

The updates are:

2.1.0.2 - 07/05/2005
--------------------
* DSP:
  * Chorus: fixed a bug, that would convert stereo to mono.
  * Low Pass Filter: fixed a bug, that would convert stereo to mono.
  * DynamicAMP: another bug fix, that would sometimes cause a total silence.
  + Added:
    * A new effect: Distortion
    * DSPFX.TXT - a values to use with some effects, to achieve different
                           effect with the same one (not using other effect/s)

Have fun!

JOBnik!

[(: JOBnik! :)]

Hi

1st of all I would like to say, that BASS_FX is 3 years old (from yesterday!)
And I would like to thank all BASS_FX users for using it

In a few days I'll release a new 2.1.0.3 version, that won't include any GPL code, so it will be for sure, that BASS_FX is usable in any commercial softwares.

Thanks a lot!

Have fun!

JOBnik!

[HarryHar]

When I use a BASS_FX_TempoCreate stream, I can't seem to be able to do this

Code SelectExpand

procedure TfrmPlayer.SetLoopSync;
begin
  NextLoopSync := BASS_ChannelSetSync(uBassFrame.aOutputChannel[fPlayerId], BASS_SYNC_ONETIME or BASS_SYNC_POS or BASS_SYNC_MIXTIME,BASS_ChannelSeconds2Bytes(uBassFrame.aOutputChannel[fPlayerId], LoopEnd / 1000), LoopEvent, Integer( Self ));
end;

procedure TfrmPlayer.MyLoopEvent(Sender: TObject);
begin
  if Looping then begin
    SetPosition( LoopStart );
    SetLoopSync;
  end;
end;The program freezes. It looks like the SetPosition is not executed before I set the newsync pos, wich is still the current, so it locks up.

If I fall back to a standard Bass_stream, all works fine,

Any idea?

gr. Harold

[Chris]

Hi
Integer( Self )
Thats wrong must be
DWORD(self)
 

If I fall back to a standard Bass_stream, all works fine

Please Show how you will create the tempo stream.....

and with which version you are working of the bass_fx.dll

Greets Chris

[HarryHar]

Hello chris,

Here's the code you requested.

Code SelectExpand

function TBassFrame.Load(const aFilename : String ): Boolean;
var
  Flags : Integer;
  BassStream : HStream;
begin
  Flags := 0;
  if HasMulti then begin
    case MainOutputChannels of
      osFront  : Flags := BASS_SPEAKER_FRONT;
      osRear   : Flags := BASS_SPEAKER_REAR;
      osCentre : Flags := BASS_SPEAKER_CENLFE;
    end;
  end;

  if UseSetPos then
    Flags := Flags or BASS_MP3_SETPOS;

  if isFloat[ PlayerId ] then
    Flags := Flags or BASS_SAMPLE_FLOAT;

  BassStream := BASS_StreamCreateFile( False, Pchar( aFilename ),0,0, Flags or Bass_Stream_Decode);

  aOutputChannel[fPlayerId] := BASS_FX_TempoCreate( BassStream, Flags );
end;

I also found out that EndSyncs I use appear to happen buffersize miliseconds too soon, where buffersize is set using :

Code SelectExpand

BASS_SetConfig(BASS_CONFIG_BUFFER, buffersize)
and buffersize = 3000 the syncpoint fires 3 seconden before the actual position in the stream. It's just Like it looks at the underlaying basschannel and not the tempo channel.

gr. Harold

[Chris]

Hi

try this please

Code SelectExpand

function TBassFrame.Load(const aFilename : String ): Boolean;
var
  Flags : Integer;
begin
  Flags := 0;
  if HasMulti then begin
    case MainOutputChannels of
      osFront  : Flags := BASS_SPEAKER_FRONT;
      osRear   : Flags := BASS_SPEAKER_REAR;
      osCentre : Flags := BASS_SPEAKER_CENLFE;
    end;
  end;

  if UseSetPos then
    Flags := Flags or BASS_MP3_SETPOS;

  if isFloat[ PlayerId ] then
    Flags := Flags or BASS_SAMPLE_FLOAT;

  aOutputChannel[fPlayerId] := BASS_StreamCreateFile( False, Pchar( aFilename ),0,0, Flags or Bass_Stream_Decode);
  if aOutputChannel[fPlayerId] = 0 then
  begin
     // Error Dedecting........the audiofile is not loaded
     exit;
  end;
   aOutputChannel[fPlayerId] := BASS_FX_TempoCreate( aOutputChannel, Flags or BASS_FX_FREESOURCE );
end;
Greets Chris

[HarryHar]

Hi Chris,

Sorry, doesn't make any difference.

How about the endsync problem? Maybe I need to be talking to the underlaying bassChannel?

gr. Harold

[Chris]

You will meant a notify if a channel has end ??
i'm using that in my aplication (also tempo,bass)
with the tempochannel
and its absolute accurate
Greets Chris

[HarryHar]

I hardly even use the End sync, the biggest problem I have is an SyncPos at let say 750 ms before the end of the song. If I use a buffer of 3000 ms then the position is fired at appx. 3700 ms beore the end of the song. Without using the Tempo channel all works flawless.

ps. Using Bass_FX.DLL 2.1.0.2 and Bass.DLL 2.1.0.5

gr. Harold

[Chris]

Hi
sorry I`m at this moment not at Home (repairing a PC from a Friend)
If I`m at home i will test that in a little demo
Greets Chris

[Chris]

Hi
after testing here a little bit  try the follwing about the pos sync...

with the following i will became here absolute a perfect sync with tempo 

Code SelectExpand

function BassGetLen : DWORD;
var
  SongLength: float;
  FloatLen: FLOAT;
begin
   SongLength := BASS_ChannelBytes2Seconds(chan, BASS_StreamGetLength(Chan));
   FloatLen := SongLength / (BASS_FX_TempoGetRateRatio(Chan));
   Result := round(1000 * FloatLen);
end;


Code SelectExpand

SyncPosHandle := Bass_ChannelSetSync(Chan,BASS_SYNC_POS,
  BASS_ChannelSeconds2Bytes(Chan, (BassGetLen -
 (750 - BASS_GetConfig(BASS_CONFIG_BUFFER))) / 1000),@SyncPosProc,DWORD(self));

testfile1
testfile Len : 4:19.971
sync will occurs on 4:19.165

testfile2
testfile Len : 35:32.645
sync will occurs on 35:31.927

testfile3

testfile Len : 2:53.845
sync will occurs on 2:53.104

Remember tempo will resample so you must calculate the buffer additionally to your value where you want the sync

Greets Chris

[HarryHar]

Ok, looks good, i'll give it a try. But what if my syncpos is at 50 ms from the end (which happens a lot with mix CD's), and the buffersize is 250? Any idea what would happen? Or would it mean I can't have sync points beyond Filelength-configbuffer?

gr. Harold

[nadia]

Hi, 

I found a strange behaviour; I load a sound that has a duration of 3 minutes and 31 seconds; if I call:

BASS_FX_TempoSet (hStream, 0.0f, -1, -100.0f)

the loaded song duration grows to 3 minutes and 33 seconds: why? 0.0 shouldn't cause a change... 

Regards 

Nadia

[Chris]

Hi
how do you calculate The Stream len ??
Greest Chris

[nadia]

Hi
how do you calculate The Stream len ??
Greest Chris

Hi 

looking further into the problem I can see that the problem is caused by the
BASS_FX_TempoGetRateRatio (hStream)
function that, instead of returning 1.00 after the call described above will return 0.99 (is this a bug  ), causing the error.

Regards 

Nadia

[(: JOBnik! :)]

Hi

I found a strange behaviour; I load a sound that has a duration of 3 minutes and 31 seconds; if I call:

BASS_FX_TempoSet (hStream, 0.0f, -1, -100.0f)

the loaded song duration grows to 3 minutes and 33 seconds: why? 0.0 shouldn't cause a change... 

It looks like you've somehow changed the Samplerate, please check it out...
I've tested this on C++ and VB and I always got 1.00

Have fun!

JOBnik!

[nadia]

Hi

It looks like you've somehow changed the Samplerate, please check it out...
I've tested this on C++ and VB and I always got 1.00

Have fun!

JOBnik!

Hi 

you are right.... it was my fault 

sorry 

Regards 

Nadia

[HarryHar]

Ok, looks good, i'll give it a try. But what if my syncpos is at 50 ms from the end (which happens a lot with mix CD's), and the buffersize is 250? Any idea what would happen? Or would it mean I can't have sync points beyond Filelength-configbuffer?

gr. Harold

Chris,

I'm still waiting for an answer.

gr.  Harold