GitHub/sdrtrunk
1
0
Fork 0
mirror of https://github.com/DSheirer/sdrtrunk.git synced 2026-11-12 16:47:31 -05:00
Code Issues Packages Projects Releases 2 Wiki Activity

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.

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

17
src/audio/AudioFormats.java
View File

@@ -35,7 +35,7 @@ public class AudioFormats
IMBE_FRAME_RATE,
LITTLE_ENDIAN );
public static AudioFormat PCM_SIGNED_8KHZ_16BITS =
public static AudioFormat PCM_SIGNED_8KHZ_16BITS_MONO =
new AudioFormat( AudioFormat.Encoding.PCM_SIGNED,
PCM_8KHZ_RATE,
PCM_SAMPLE_SIZE_BITS,
@@ -43,7 +43,16 @@ public class AudioFormats
PCM_FRAME_SIZE_BYTES_MONO,
PCM_8KHZ_RATE,
LITTLE_ENDIAN );
public static AudioFormat PCM_SIGNED_8KHZ_16BITS_STEREO =
new AudioFormat( AudioFormat.Encoding.PCM_SIGNED,
PCM_8KHZ_RATE,
PCM_SAMPLE_SIZE_BITS,
TWO_CHANNELS,
PCM_FRAME_SIZE_BYTES_STEREO,
PCM_8KHZ_RATE,
LITTLE_ENDIAN );
public static AudioFormat PCM_SIGNED_48KHZ_16BITS_MONO =
new AudioFormat( AudioFormat.Encoding.PCM_SIGNED,
PCM_48KHZ_RATE,
@@ -66,11 +75,11 @@ public class AudioFormats
* Source Data Line Info for a 48 kHz, 16-bits signed PCM one channel
*/
public static final Line.Info MONO_SOURCE_DATALINE_INFO =
new DataLine.Info( SourceDataLine.class, PCM_SIGNED_48KHZ_16BITS_MONO );
new DataLine.Info( SourceDataLine.class, PCM_SIGNED_8KHZ_16BITS_MONO);
/**
* Source Data Line Info for a 48 kHz, 16-bits signed PCM two channels
*/
public static final Line.Info STEREO_SOURCE_DATALINE_INFO =
new DataLine.Info( SourceDataLine.class, PCM_SIGNED_48KHZ_16BITS_STEREO );
new DataLine.Info( SourceDataLine.class, PCM_SIGNED_8KHZ_16BITS_STEREO);
}