Commit Graph

15 Commits

Author SHA1 Message Date
Denny
3af4b953f4 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.
Note: required updated JMBE 0.3.3 library which supports 8 kHz audio output sample rate.
2016-08-19 21:09:39 -04:00
denny
c3d52ff86e Merges #34 Major redesign of Tuner, Channel and Alias management.
Changes to model, view and controller components and updates all gui
editors.  Removes the configuration panel and tree and replaces with 3
new panels.  Updates playlist.xml to a new playlist_v2.xml format.
2016-04-01 08:23:49 -04:00
denny
f7f6c2fc3e Merges changes from master branch to resolve issue with CPU and memory
and constraints on scheduled thread pool saturation.  Adds a new
scheduled thread pool for each processing chain that the components in
the chain can share, versus the single shared pool exposed by the
threadpoolmanager class.
2016-02-15 15:47:14 -05:00
denny
c405ddad96 Work in progress - program compiles and runs 2016-02-13 14:37:36 -05:00
denny
4caecaa476 Removed deemphasis experiment and replaced with a fixed, non-clipping
gain module for P25 IMBE audio.
2015-12-12 07:11:30 -05:00
denny
ee96ce43ad Fixed import in P25 audio module 2015-12-11 13:35:47 -05:00
denny
6763a4bdd6 Adds de-emphasis filter to P25 decoded IMBE audio output. 2015-12-11 13:34:20 -05:00
denny
f04a6727b0 Resolved issue with channel label display in spectrum overlay panel
when a new tuner is added.

Cleanup of debugging messages.
2015-11-22 14:25:37 -05:00
denny
4025f88951 P25 and Airspy work in progress
Updated p25 decoder state to better track calls and call detects from
a trunked channel

Fixed issue with false detects on LDU2 encrypted call messages

Fixed Airspy channel allocation ... will allocate channels across the
entire bandwidth, minus 50 kHz on either end, and will not adjust the
center frequency if it's not needed.

Fixed traffic channel teardown -- traffic channels are immediately 
removed now, without a fade delay.

AudioMetadata - updated flag is now reset upon copying the metadata
2015-11-21 17:40:59 -05:00
denny
a6c7c4f5d1 P25 Decoder updates - work in progress.
Updated jmbe library to work with version 0.3.1
2015-11-15 19:53:42 -05:00
denny
70e62ebb35 Adds airspy USB tuner support and updates the spectral display
component.

-Airspy supported with 10 and 2.5 MSps sample rates.  Additional
decimation may be added later.

-Spectral display updated to include smoothing and filtering options.

Note: the decimated output of a tuner channel from the airspy is
48,076.9 samples per second, versus the normal 48 kHz decimated rate.
This is 1.0015 times the normal rate and doesn't appear to impact the
decoders or audio processing.  Therefore, no fractional resampling has
been added.
2015-11-07 08:18:41 -05:00
denny
5a91630996 Updates p25 audio module to use version 0.3.0 of the jmbe audio library 2015-10-10 06:05:08 -04:00
denny
3e05a9eb03 Resolves issue #23.
Adds audio output display and management options supporting mono and 
stereo output options.

Provides audio output supporting prioritization by talkgroup and/or 
channel selection.

Supports muting all channels, or muting individual channels and
individual audio gain/volume controls.
2015-10-03 17:50:03 -04:00
denny
575197bd98 Interim checkin for call recording. 2015-09-11 14:01:47 -04:00
denny
f4d8ea281d Initial commit of redesigned internal processing and audio management.
Note: Several of the decoders are currently non-functioning in this
commit.  If you want the latest functioning codebase, please checkout
the commit prior to this one.  All decoders will eventually be updated
with this new architecture.

Currently broken:
- Logging and recording
- Aux decoders (Fleetsync/MDC/LoJack/Tait)
- LTR/Passport decoders

Changes in this commit:
- Module architecture for decoders and components with central
provisioning by the DecoderFactory
- Transition from Complex sample stream processing to float buffer
processing for improved memory management
- Redesigned filter structures - to support buffers and streams
- Resolved several memory leak issues
- Universal sharing of the thread pool manager
- Added centralized audio management with call/user prioritization and
new gui with mute/volume controls
- Embedded audio metadata for eventual streaming support
- Redesigned ProcessingChain to support independent re-use
- Added new TrafficChannelManager to handle traffic channel allocations
- Traffic Channel pool size and Call timeout available in P25 and
MPT1327 configs
- Redesigned channel and decoder gui components
2015-09-01 07:10:26 -04:00