| Pregunta: | 32490 - CUAL ES LA API QUE MANEJA EL SONIDO DE ENTRADA AL PC |
| Autor: | José Madrid |
| Quiero hacer un programita similar a la grabadora de Windows (uso W2000), para graficar el espectro de audio que entra por el microfono. Como le hago para capturar ese sonido desde Visual Basic 6. ¿Existe alguna API? ¿Cual es? ¿Cómo se usa? | |
| Respuesta: | Albert SC |
| Hay un montón de apis para utilizar, te paso las que más utilizarás. Yo estoy en ello , cuando sepa más ya te pasaré información. Si la consigues tú primero pues ya sabes. :-) (me la pasas a mi). Private Declare Function waveInGetNumDevs Lib "winmm.dll" () As Long Private Declare Function waveInGetDevCaps Lib "winmm.dll" Alias "waveInGetDevCapsA" (ByVal uDeviceID As Long, lpCaps As WAVEINCAPS, ByVal uSize As Long) As Long Private Declare Function waveInOpen Lib "winmm.dll" (lphWaveIn As Long, ByVal uDeviceID As Long, lpFormat As WAVEFORMAT, ByVal dwCallback As Long, ByVal dwInstance As Long, ByVal dwFlags As Long) As Long Private Declare Function waveInPrepareHeader Lib "winmm.dll" (ByVal hWaveIn As Long, lpWaveInHdr As WAVEHDR, ByVal uSize As Long) As Long Private Declare Function waveInAddBuffer Lib "winmm.dll" (ByVal hWaveIn As Long, lpWaveInHdr As WAVEHDR, ByVal uSize As Long) As Long Private Declare Function waveInStart Lib "winmm.dll" (ByVal hWaveIn As Long) As Long Private Declare Function waveInReset Lib "winmm.dll" (ByVal hWaveIn As Long) As Long Private Declare Function waveInStop Lib "winmm.dll" (ByVal hWaveIn As Long) As Long Private Declare Function waveInUnprepareHeader Lib "winmm.dll" (ByVal hWaveIn As Long, lpWaveInHdr As WAVEHDR, ByVal uSize As Long) As Long Private Declare Function waveInClose Lib "winmm.dll" (ByVal hWaveIn As Long) As Long Private Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long Private Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Function GlobalFree Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Function CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (struct As Any, ByVal ptr As Long, ByVal cb As Long) Private Declare Function CopyPtrFromStruct Lib "kernel32" Alias "RtlMoveMemory" (ByVal ptr As Long, struct As Any, ByVal cb As Long) Con estas funciones recojes la onda de audio de la entrada que quieras y la muestra, guardas, trasnformas,etc.... SALUDOS | |