#include "ltmm.h"

C Syntax

HRESULT IltmmAudioInputs_put_MixLevel(pInputs, newVal)

C++ Syntax

HRESULT put_MixLevel(newVal)

IltmmAudioInputs *pInputs;

pointer to an interface

double newVal;

recording volume

Sets the recording volume level for all audio inputs.

Parameter Description
pInputs Pointer to an IltmmAudioInputs interface.
newVal The new recording volume level. Possible values are:
  Value Meaning
  0.0 to 1.0 The allowed range of recording volume level where 0.0 indicates the recording level is off (muted) and 1.0 is the full volume.
  -1.0 The recording level is adjusted automatically. (Automatic gain adjustment)



The function was successful.

<> S_OK

An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Required DLLs and Libraries


For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.


Win32, x64

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