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Changes internal audio sample rate from 48 kHz down to 8 kHz. Updates the P25 audio module to output 8 kHz audio. Updates the audio recorder to record at 8 kHz rate.

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Note: required updated JMBE 0.3.3 library which supports 8 kHz audio output sample rate.
This commit is contained in:
Denny
2016-08-19 21:09:39 -04:00
parent cc65d44237
commit 3af4b953f4
18 changed files with 857 additions and 447 deletions
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114
src/sample/real/RealToRealBufferAssembler.java
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@@ -1,19 +1,19 @@
/*******************************************************************************
* SDR Trunk
* Copyright (C) 2015 Dennis Sheirer
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
* SDR Trunk
* Copyright (C) 2015 Dennis Sheirer
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
******************************************************************************/
package sample.real;
@@ -24,51 +24,49 @@ import sample.Listener;
*/
public class RealToRealBufferAssembler implements RealSampleListener
{
private int mBufferSize;
private float[] mBuffer;
private int mBufferPointer;
private Listener<RealBuffer> mListener;
public RealToRealBufferAssembler( int bufferSize )
{
mBufferSize = bufferSize;
mBuffer = new float[ mBufferSize ];
}
public void dispose()
{
mListener = null;
mBuffer = null;
}
public void reset()
{
mBuffer = new float[ mBufferSize ];
mBufferPointer = 0;
}
@Override
public void receive( float sample )
{
if( mBufferPointer >= mBufferSize )
{
if( mListener != null )
{
mListener.receive( new RealBuffer( mBuffer ) );
}
private int mBufferSize;
private float[] mBuffer;
private int mBufferPointer;
mBuffer = new float[ mBufferSize ];
mBufferPointer = 0;
}
private Listener<RealBuffer> mListener;
mBuffer[ mBufferPointer ] = sample;
public RealToRealBufferAssembler(int bufferSize)
{
mBufferSize = bufferSize;
mBuffer = new float[mBufferSize];
}
mBufferPointer++;
}
public void dispose()
{
mListener = null;
mBuffer = null;
}
public void setListener( Listener<RealBuffer> listener )
{
mListener = listener;
}
public void reset()
{
mBuffer = new float[mBufferSize];
mBufferPointer = 0;
}
@Override
public void receive(float sample)
{
mBuffer[mBufferPointer++] = sample;
if (mBufferPointer >= mBufferSize)
{
if (mListener != null)
{
mListener.receive(new RealBuffer(mBuffer));
}
mBuffer = new float[mBufferSize];
mBufferPointer = 0;
}
}
public void setListener(Listener<RealBuffer> listener)
{
mListener = listener;
}
}