how do i write processed audio samples to a file in realtime.

[NIvil Wilson]

sir,
please help.the code is given below.

code_text
 //Return if audio input is null
     if(!input)
         return;



     //Check the number of samples in input buffer
     qint64 len =input->bytesReady();

     //Limit sample size
     if(len > 4096)
         len = 4096;
     //Read sound samples from input device to buffer
     qint64 l = input_device->read(_buffer.data(), len);
     if(l > 0)
     {
         //Assign sound samples to short array
         short* resultingData = (short*)_buffer.data();


         short *outdata=resultingData;
         outdata[ 0 ] = resultingData [ 0 ];

          int iIndex;
          if(_chk_state == Qt::Checked)
          {
                 //Remove noise using Low Pass filter algortm[Simple algorithm used to remove noise]
                 for ( iIndex=1; iIndex < len; iIndex++ )
                 {
                     outdata[ iIndex ] = 0.333 * resultingData[iIndex ] + ( 1.0 - 0.333 ) * outdata[ iIndex-1 ];
                 }
           }

          for ( iIndex=0; iIndex < len; iIndex++ )
          {
              //Change volume to each integer data in a sample
              outdata[ iIndex ] = ApplyVolumeToSample( outdata[ iIndex ]);
          }

          //write modified sond sample to outputdevice for playback audio
           output_device->write((char*)outdata, len);

[SGaist]

Hi,

What is exactly your issue ?

[NIvil Wilson]

@SGaist
sir,
i want to record that processed aduio(outdata in code) to a mp3 or mp4 file.how do i do that.i dont know how to do that.

[SGaist]

In that case you will need something like ffmpeg or VLC.