Jump to content
Sign in to follow this  

Bass - How to save file after vst effect ?

Recommended Posts


Hello, I search to save Bass output channel after a VST effect pluggin !!

I found, with an example, how to launch and play Bass VST pluggin. :thumbsup:

But i don't found how to save the result to a file (wav or mp3). >_<

Can anybody help me, please ? :shifty:

#include <BassVST.au3>
#include <BassVSTConstants.au3>
#include <Bass.au3>
#include <BassConstants.au3>

$vst_dll = @ScriptDir & "\epicVerb.dll"
_BASS_STARTUP ( @ScriptDir & "\BASS.dll")
_BASS_VST_STARTUP ( @ScriptDir & "\bass_vst.dll")
$GUI = GuiCreate ("GUI", 990, 190)
_BASS_Init(0, -1, 44100, 0, "") ;Initalize bass.
If @error Then
    MsgBox(0, "Error", "Could not initialize audio")
$file = FileOpenDialog("Open...", "", "MP3 Files (*.mp3)") ;Open file dialog.
$MusicHandle = _BASS_StreamCreateFile(False, $file, 0, 0, 0) ;Create a stream with file.
If @error Then
    MsgBox(0, "Error", "Could not load audio file" & @CR & "Error = " & @error)

$chan = _BASS_VST_ChannelSetDSP($MusicHandle, $vst_dll, 0, 0)
_BASS_ChannelPlay($MusicHandle, False) ;Iniate playback
$song_length = _BASS_ChannelGetLength($MusicHandle, $BASS_POS_BYTE) ;Get the length of the song in bytes.
_BASS_VST_EmbedEditor($chan, $GUI)

GUISetState (@SW_SHOW)
While 1
    If GUIGetMsg () = -3 Then
    If _BASS_ChannelGetPosition($MusicHandle, $BASS_POS_BYTE) >= $song_length Then ExitLoop

Func OnAutoItExit()

Free VST pluggins link :http://audio.tutsplus.com/articles/general/over-90-free-vst-effects-plugins/

Edited by TheDaverMan

Share this post

Link to post
Share on other sites

-Should I use Bass_Record ??

-And then how to save the file ? Which Bass function use to save ?

In other language (VB.Net), I saw the use of "WaveWriter" to save !

Can you help me to take the good way ?


I have found this: Topic: Saving a mixer stream (with syncs) to file

WaveWriter ww = new WaveWriter(filename, mixerStream, 32, true);
         float[] data = new float[32768];
         while (Bass.BASS_ChannelIsActive(mixerStream) == BASSActive.BASS_ACTIVE_PLAYING)
             int length = Bass.BASS_ChannelGetData(mixerStream, data, data.Length);
             if (length > 0 )
                 ww.Write(data, length);
             else break;

on http://www.un4seen.com/

Edited by TheDaverMan

Share this post

Link to post
Share on other sites


I don't know if you've stumbled upon this or not but here is anyway.

The UDF is to advanced for me but I think BrettF wrote it so maybe you could PM him.





Share this post

Link to post
Share on other sites

Thank you for your response Decipher.

Yes I have read this post.

The simply way to record: " SoundRecorder.exe", but in my case he is not working correctly with my sound card. >_<

Problem: "Periphérique d'enregistrement audio introuvable", he not found record device.

All program sound working correctly but microsoft recorder software not working. :nuke:

Another, working, way (for mee) is to use "ffmpeg", but I found this way not a real solution,

too heavy: 22MB just to save a .wav sound. :

I think the correct solution is to write a function same as "WaveWriter" to record sound to file. But I don't have the level for this.

I think we need to use Bass_ChannelGetData to take data before save it.

I continue to search :sweating: , thx.

Edited by TheDaverMan

Share this post

Link to post
Share on other sites

I have found a solution to record sound after VST effect. :sorcerer:

I post the resulting code:

#include <BASS.au3>
#include <BASSConstants.au3>
#include <BASSVST.au3>
#include <BASSVSTConstants.au3>
#include <BASSENC.au3>
#include <BASSMIX.au3>
#include <File.au3>

Global $VSTdll = @ScriptDir & "\VST\epicVerb.dll"
Global $BassDir = @ScriptDir & "\DLL\"
Global $Buffer = DllStructCreate("byte[20000]")
Global $BufferPointer = DllStructGetPtr($Buffer)
Global $BufferSize = DllStructGetSize($Buffer)


_BASS_STARTUP($BassDir & "Bass.dll")
___Debug(@error, " _BASS_STARTUP "&@error)

_BASS_VST_STARTUP($BassDir & "bassvst.dll")
___Debug(@error, " _BASS_VST_STARTUP "&@error)

_BASS_Encode_Startup($BassDir & "bassenc.dll")
___Debug(@error, " _BASS_Encode_Startup "&@error)

_BASS_MIX_STARTUP($BassDir & "bassmix.dll")
___Debug(@error, " _BASS_MIX_STARTUP "&@error)

_BASS_Init($BASS_DEVICE_DEFAULT, -1, 44100, 0, "Null")
___Debug(@error, " _BASS_Init "&@error)

#EndRegion BASS INIT
$SoundFile = FileOpenDialog("Open...", @UserProfileDir & "\Music", "MP3,Wav Files (*.wav;*.mp3)", 1)

$StreamHandle = _BASS_StreamCreateFile(False, $SoundFile, 0, 0, $BASS_STREAM_DECODE);$BASS_STREAM_DECODE) ; Create a stream1 with file.
___Debug(@error, "_BASS_StreamCreateFile ")

$InfoStream = _BASS_ChannelGetInfo($StreamHandle) ; Get info on stream(freq, chan, ...)
___Debug(@error, "_BASS_ChannelGetInfo ")

$StreamMixerHandle = _BASS_Mixer_StreamCreate($InfoStream[0], $InfoStream[1], BitOR($BASS_MIXER_END, $BASS_STREAM_DECODE)) ; Create a streamMixer with same freq and num of Chan
___Debug(@error, "_BASS_Mixer_StreamCreate "&@error)

_BASS_Mixer_StreamAddChannel($StreamMixerHandle, $StreamHandle, 0) ; Add stream1 on streamMixer
___Debug(@error, "_BASS_Mixer_StreamAddChannel "&@error)

$VSTchanHandle = _BASS_VST_ChannelSetDSP($StreamHandle, $VSTdll, 1, 1) ; Assigns a VST effects to stream1
___Debug(@error, "_BASS_VST_ChannelSetDSP ")

Sleep(2500) ; Wait 2,5sec, to fill the Mixer buffer before recording

$hEncoder = _BASS_Encode_Start($StreamMixerHandle, @ScriptDir & "\TEST.wav", $BASS_ENCODE_PCM) ; Start encoding from streamMixer
___Debug(@error, "_BASS_Encode_Start ")

$iBytes = _BASS_ChannelGetLength($StreamHandle, $BASS_POS_BYTE) ; Get size in bytes
___Debug(@error, "_BASS_ChannelGetLength " & $iBytes)

$iDone = 0 ; Init length counter

While _BASS_ChannelIsActive($StreamMixerHandle) ; while streamMixer actif
     $iLength = _BASS_ChannelGetData($StreamMixerHandle, $BufferPointer, $BufferSize) ; Read data
     ___Debug(@error, "_BASS_ChannelGetData " & $iLength & " bytes ")

     $iDone += $iLength ; Increment lenghtCounter with data
     ___Debug(-1, Round($iDone * 100 / $iBytes) & "% done") ; Check counter Error

_BASS_Encode_Stop($hEncoder) ; Stop encoding
___Debug(@error, "_BASS_Encode_Stop ")

_BASS_StreamFree($StreamMixerHandle) ; Release streamMixer
___Debug(@error, "_BASS_StreamFree ")

Func ___DeBug($Error, $sAction)
    Switch $Error
        Case -1
            ConsoleWrite(@CRLF & "-" & $sAction & @CRLF)
        Case 0
            ConsoleWrite(@CRLF & "+" & $sAction & " - OK" & @CRLF)
        Case Else
            ConsoleWrite(@CRLF & "!" & $sAction & " - FAILED" & @CRLF)

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  


Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.