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https://github.com/DJ2LS/FreeDATA
synced 2024-05-14 10:04:33 +02:00
added cmd line arument to list audiodev by number, test_tx.py and test_rx.py working OK with virtual audio card, updated README.md with latest examples
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drowe67
David Rowe
parent
af99e53ec7
commit
52841da285
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@ -1,63 +1,36 @@
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# 001_HIGHSNR_STDIO_AUDIO TEST SUITE
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# FreeDV-JATE [Just Another TNC Experiment]
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1. Install
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```
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sudo apt update
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sudo apt upgrade
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sudo apt install git cmake build-essential python3-pip portaudio19-dev python3-pyaudio
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pip3 install crcengine
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pip3 install threading
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```
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1. Install codec2, and set up the `libcodec2.so` shared library path, for example
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```
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export LD_LIBRARY_PATH=${HOME}/codec2/build_linux/src
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```
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## 001_HIGHSNR_STDIO_AUDIO TEST SUITE
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## STDIO tests
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Pipes are used to move audio samples from the Tx to Rx:
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### INSTALL TEST SUITE
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#### Install prerequierements
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```
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sudo apt update
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sudo apt upgrade
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sudo apt install git cmake build-essential python3-pip portaudio19-dev python3-pyaudio
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pip3 install crcengine
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pip3 install threading
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python3 test_tx.py --mode datac1 --delay 500 --frames 2 --bursts 1 | python3 test_rx.py --mode datac1 --frames 2 --bursts 1
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```
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Change into a directory of your choice
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Run the following commands --> They will download and compile the latest codec2 ( dr-packet ) files and LPCNet as well into the directory of your choice
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```
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wget https://raw.githubusercontent.com/DJ2LS/FreeDV-JATE/001_HIGHSNR_STDIO_AUDIO/install_test_suite.sh
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chmod +x install_test_suite.sh
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./install_test_suite.sh
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```
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### PARAMETERS
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| parameter | description | side
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|--|--|--|
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| - -mode 12 | set the mode for FreeDV ( 10,11,12 ) | TX & RX
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| - -delay 1 | set the delay between burst | TX
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| - -frames 1 | set the number of frames per burst | TX & RX
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| - -bursts 1 | set the number of bursts | TX & RX
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| - -input "audio" | if set, program switches to audio instead of stdin | RX
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| - -audioinput 2 | set the audio device | RX
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| - -output "audio" | if set, program switches to audio instead of stdout | TX
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| - -audiooutput 1 | set the audio device | TX
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| - -debug | if used, print additional debugging output | RX
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### STDIO TESTS FOR TERMINAL USAGE ONLY
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python3 test_tx.py --mode 12 --delay 500 --frames 2 --bursts 1 | python3 test_rx.py --mode 12 --frames 2 --bursts 1
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### AUDIO TESTS VIA VIRTUAL AUDIO DEVICE
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#### Create audio sinkhole and subdevices
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Note: This command needs to be run again after every reboot
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```
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sudo modprobe snd-aloop index=1,2 enable=1,1 pcm_substreams=1,1 id=CHAT1,CHAT2
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```
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check if devices have been created
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## AUDIO test via virtual audio devices
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1. Create virtual audio devices. Note: This command needs to be run again after every reboot
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```
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sudo modprobe snd-aloop index=1,2 enable=1,1 pcm_substreams=1,1 id=CHAT1,CHAT2
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```
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1. Check if devices have been created
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```
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aplay -l
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Output should be like this:
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Karte 0: Intel [HDA Intel], Gerät 0: Generic Analog [Generic Analog]
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Sub-Geräte: 1/1
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@ -74,17 +47,24 @@ Output should be like this:
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Karte 2: CHAT2 [Loopback], Gerät 1: Loopback PCM [Loopback PCM]
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Sub-Geräte: 1/1
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Sub-Gerät #0: subdevice #0
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```
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1. Determine the audio device number you would like to use:
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```
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python3 test_rx.py --list
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<snip>
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audiodev: 0 HDA Intel PCH: ALC269VC Analog (hw:0,0)
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audiodev: 1 HDA Intel PCH: HDMI 0 (hw:0,3)
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audiodev: 2 HDA Intel PCH: HDMI 1 (hw:0,7)
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audiodev: 3 HDA Intel PCH: HDMI 2 (hw:0,8)
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audiodev: 4 Loopback: PCM (hw:1,0)
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audiodev: 5 Loopback: PCM (hw:1,1)
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audiodev: 6 Loopback: PCM (hw:2,0)
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audiodev: 7 Loopback: PCM (hw:2,1)
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```
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In this case we choose audiodev 4 for the RX and 5 for the Tx.
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#### Run tests:
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Its important, to run TEST_RX at first to reduce the chance that we get some system side audio errors. Tests are showing, that its important to start with audio device "2" at first and then go to the lower virtual devices "1".
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Audio device "0" is the default sound card.
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##### RX side
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python3 test_rx.py --mode 12 --frames 2 --bursts 1 --input "audio" --audioinput 2 --debug
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##### TX side
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python3 test_tx.py --mode 12 --delay 500 --frames 2 --bursts 1 --output "audio" --audiooutput 1
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1. Start the Rx first, then Tx in separate consoles:
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```
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python3 test_rx.py --mode datac0 --frames 2 --bursts 1 --audiodev 4 --debug
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python3 test_tx.py --mode datac0 --frames 2 --bursts 1 --audiodev 5
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@ -25,14 +25,21 @@ parser = argparse.ArgumentParser(description='Simons TEST TNC')
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parser.add_argument('--bursts', dest="N_BURSTS", default=0, type=int)
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parser.add_argument('--framesperburst', dest="N_FRAMES_PER_BURST", default=0, type=int)
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parser.add_argument('--mode', dest="FREEDV_MODE", type=str, choices=['datac0', 'datac1', 'datac3'])
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parser.add_argument('--audioinput', dest="AUDIO_INPUT", default=0, type=int)
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parser.add_argument('--audiodev', dest="AUDIO_INPUT_DEVICE", default=0, type=int, help="audio device number to use")
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parser.add_argument('--debug', dest="DEBUGGING_MODE", action="store_true")
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parser.add_argument('--list', dest="LIST", action="store_true", help="list audio devices by number and exit")
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args = parser.parse_args()
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if args.LIST:
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p = pyaudio.PyAudio()
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for dev in range(0,p.get_device_count()):
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print("audiodev: ", dev, p.get_device_info_by_index(dev)["name"])
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quit()
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N_BURSTS = args.N_BURSTS
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N_FRAMES_PER_BURST = args.N_FRAMES_PER_BURST
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AUDIO_INPUT_DEVICE = args.AUDIO_INPUT
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AUDIO_INPUT_DEVICE = args.AUDIO_INPUT_DEVICE
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MODE = codec2.FREEDV_MODE[args.FREEDV_MODE].value
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DEBUGGING_MODE = args.DEBUGGING_MODE
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@ -40,7 +47,8 @@ DEBUGGING_MODE = args.DEBUGGING_MODE
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# AUDIO PARAMETERS
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AUDIO_FRAMES_PER_BUFFER = 2048
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MODEM_SAMPLE_RATE = codec2.api.FREEDV_FS_8000
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AUDIO_SAMPLE_RATE_TX = 48000
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AUDIO_SAMPLE_RATE_RX = 48000
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assert (AUDIO_SAMPLE_RATE_RX % MODEM_SAMPLE_RATE) == 0
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# check if we want to use an audio device then do an pyaudio init
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if AUDIO_INPUT_DEVICE != 0:
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@ -56,8 +64,7 @@ if AUDIO_INPUT_DEVICE != 0:
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# ----------------------------------------------------------------
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# DATA CHANNEL INITIALISATION
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# DATA CHANNEL INITIALISATION
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# open codec2 instance
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freedv = cast(codec2.api.freedv_open(MODE), c_void_p)
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@ -119,5 +126,5 @@ print(f"RECEIVED BURSTS: {rx_bursts} RECEIVED FRAMES: {rx_total_frames}", file=s
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# and at last check if we had an openend pyaudio instance and close it
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if AUDIO_INPUT_DEVICE != 0:
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stream_tx.close()
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stream_rx.close()
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p.terminate()
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@ -21,14 +21,21 @@ parser.add_argument('--bursts', dest="N_BURSTS", default=0, type=int)
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parser.add_argument('--framesperburst', dest="N_FRAMES_PER_BURST", default=0, type=int)
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parser.add_argument('--delay', dest="DELAY_BETWEEN_BURSTS", default=0, type=int)
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parser.add_argument('--mode', dest="FREEDV_MODE", type=str, choices=['datac0', 'datac1', 'datac3'])
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parser.add_argument('--audiooutput', dest="AUDIO_OUTPUT", default=0, type=int)
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parser.add_argument('--audiodev', dest="AUDIO_OUTPUT_DEVICE", default=0, type=int, help="audio output device number to use")
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parser.add_argument('--list', dest="LIST", action="store_true", help="list audio devices by number and exit")
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args = parser.parse_args()
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if args.LIST:
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p = pyaudio.PyAudio()
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for dev in range(0,p.get_device_count()):
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print("audiodev: ", dev, p.get_device_info_by_index(dev)["name"])
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quit()
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N_BURSTS = args.N_BURSTS
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N_FRAMES_PER_BURST = args.N_FRAMES_PER_BURST
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DELAY_BETWEEN_BURSTS = args.DELAY_BETWEEN_BURSTS/1000
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AUDIO_OUTPUT_DEVICE = args.AUDIO_OUTPUT
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AUDIO_OUTPUT_DEVICE = args.AUDIO_OUTPUT_DEVICE
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MODE = codec2.FREEDV_MODE[args.FREEDV_MODE].value
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@ -38,6 +45,7 @@ MODE = codec2.FREEDV_MODE[args.FREEDV_MODE].value
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AUDIO_FRAMES_PER_BUFFER = 2048
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MODEM_SAMPLE_RATE = codec2.api.FREEDV_FS_8000
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AUDIO_SAMPLE_RATE_TX = 48000
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assert (AUDIO_SAMPLE_RATE_TX % MODEM_SAMPLE_RATE) == 0
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# check if we want to use an audio device then do an pyaudio init
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if AUDIO_OUTPUT_DEVICE != 0:
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