Op25 Pulseaudio, pulseaudio(input) # # ALSA #output. The OP25 proje
Op25 Pulseaudio, pulseaudio(input) # # ALSA #output. The OP25 project in 2009 released an encoder and software TX for P25 (conventional phase I C4FM/FDMA) based on the fullrate IMBE codec contribution from Pavel Yazev. install pavucontrol (sudo apt install pavucontrol). I have a USB audio dongle, and can play audio out on the Pi-5 Hello everything is fine? I'm new to OP25. Our goal is to build a software-defined analyzer for APCO P25 signals that is available under the GNU Public License (GPL). X item (zellostream). I have a nasty feeling that a Raspbian update to Python is causing this (?) No errors in my logs. It almost seems like PulseAudio and Alsa are conflicting or Alsa is not starting up correctly. Using VMware Player (free) and Ubuntu 14. pulseaudio-alsa for PulseAudio to manage ALSA as well, see #ALSA 2. Then you will find Pulseaudio volume control under the Sound and Video menu. Standard Raspbian Buster with Desktop. I have op25 working great I just cannot figure out the rest. com/apps/db/ Scroll to the section entitled Search Trunked Radio Information. bin There is no other input options in the prebuilt version. I'm only trying to tune into specific frequencies manually and decode their audio. I've tried to use the -O flag to route Anyone running the boatbod fork of op25 who needs a little volume boost can now achieve this direct from the command line using a new "-x scale-factor" parameter. I have been looking through many previous OP25 threads about streaming and they all explain how to stream to Broadcastify and some reference private servers via Icecast but don't explain it in much detail. Some PulseAudio modules are not included in the main package and must be installed separately if needed: 1. 10. I have the GUI running on that laptop and I'm getting Hello all. Pretty sure you need a -O parameter when you launch OP25. It is in the command I used near the end. Here's what I'm looking for: a single stream from the OP25 process I have running on a PC This runs op25 audio transmit, sets the output gain at 0. When I run the cmd: rx. Virtualization seemed like a good option. You should see a Python 2. My goal is to stream my local law dispatch to RR from my pi 3b+. 7 (OP25) item and a Python 3. py --args 'soapy' -N 'LNA:49' -S There is a caveat that pulse audio does not play well in this scenario, so you may have some work to figure out permissions issues if your audio destination is anything other than "default". I've got PulseAudio uncommented in the op25. I have an RPI 3B+, RTLSDR, and am running Raspbian Stretch I did comment out the output. Fork of osmocom OP25 by boatbod. 0. If you're running multi_rx. py. If I run my startup script directly in the terminal it runs without issue - audio and everything, but when run as a service there is no audio. I had to rebuild a RPI that was running OP25 perfectly. now start OP25 and zellostream. Everything seems to be working fine except for the audio is pretty bad. 10 and gnuradio 3. radioreference. OP25 is a program that decodes P25 Phase 1 and Phase 2 digital radio. . New comments cannot be posted and votes cannot be cast. I'm working to change my feeds over to this from a BCD996P2 because it's so much better on our system. Seems like OP25 is working great but I only get 1 transmission worth of audio at best then it's silent when I start it Boatbod fork - even rebuilt from scratch to be on the safe side but since updating my Pi 3 B last night, my audio is all garbled and unintelligible. I already have op25 I Just need the zello guide Im really new at this thank you The OP25 decoder program demodulates and decodes P25 signals and produces an audio stream and a queue of error-corrected APCO Project 25 frames. Has anyone been able to get OP25 / liquidsoap / Icecast2 running as a service to work while still letting the Raspberry Pi deliver audio? I have OP25 working wonderfully, I am just trying to have the audio play the -U command line argument for op25 instead of -O hw:1,0 to let the operating system decide if the sound device accessable under ALSA or in its actually under control of Pulse Audio. py runs without errors, it seems to decode fine but there is no audio. Also, it's just darned neat to be able to mix and match audio (for that matter video -- but that's a separate topic concerned with obs-v4lsink). Go to https://www. I haven't tackled sending audio to audio jack but when you send to a streaming server like blackice, you use "-O loop0"as a parameter. Then reboot. Has anyone been able to get OP25 / liquidsoap / Icecast2 running as a service to work while still letting the Raspberry Pi deliver audio? I have OP25 working wonderfully, I am just trying to have the audio play This is temporary until the next time you run OP25, after which the TGs are no longer whitelisted and OP25 will stop on whatever it finds. The radio is plugged into a powered USB hub, so I'm thinking it's getting enough power. 04) are out-of-the-box Lubuntu based x86_64 operating systems for anyone interested in software defined radios. This may or may not be a good thing depending on your Linux Install the pulseaudiopackage. 04) DragonOS FocalX (22. OP25 and Liquidsoap run beautifully from the terminal but fail miserably as a service. issue with OP25 > python 2. EDIT: Never mind, I exited OP25 and upon restarting it, using the EXACT SAME command line that worked properly, it went back to doing the garbled audio. sh rx. I have my audio locally via a speaker connected to the This from sound settings when Op25 is runningthis screen will occassionnaly flicker between this and the "there is no app currently playing or recording audio"but no audio. py, try setting the audio device_name to "pulse" as follows: I have tried various combinations in OP25. But, I try to use the -w -W options and I can't use vlc. I'm attempting to run OP25 headless with my Raspberry Pi and thus have it set up as a service. pulseaudio-j Mar 31, 2023 · OP25 is a digital voice decoder that does P25 Phase 1 and Phase 2 decoding. I was wondering if there was a memory leak issue or something that I don't know about running op25 for more than 10-15 minutes? Archived post. Hi , I installed Ubuntu 14 and setup gqrx and then followed the guide at OP25 For Dummies – Or how to build a police scanner for $30 (Part 1) | John’s Tech Blog to setup OP25. Contribute to scresante/op25-docker development by creating an account on GitHub. Some municipal areas are upgrading to P25 Phase 2 so almost gone are the days that you can track them with a police scanner since P25 is a Trunked Radio system and not just a lone frequency to monitor. I can successfully get OP25 working using rx. Installed OP25 from these instructions - OP25 For Dummies – Or how to build a police scanner for $30 (Part 1) | John’s Tech OP25 For Dummies – Or how to build a police scanner for $30 (Part 1) OP25 Raspberry Pi Streaming Part 2 OP25 on a Raspberry Pi (part 3) To get started, we need to find the control frequency and NAC for the service in your area. pulseaudio (input) in OP25. py use "-O pulse" on the command line and see what happens. Pulse Audio by default. Scale-factor is a floating point number used as a multiplier; 1. Values range from 1-11. I have a USB audio dongle, and can play audio out on the Pi-5 Hi. These are the methods I used to get it up and running. json file # I'm playing around with the boatbod op25 fork, in particular the UDP stream. Setting it up is challenging so I wrote a blog about it. The Raspbian Lite version does not install Pulse Audio leaving ALSA in charge (so to speak) of your audio devices that works well for headless operation of op25 without the PA permissions issues. Liquidsoap will abort at startup if anything is wrong with your op25. 0 reduce the volume and numbers I recently purchased another Pi a Pi 5 8GB model and am trying to get OP25 to run on it. Thanks in advance for reading this and any help you might be able to share. Am I right that I add '-w -W host-ip' to the end of the op. I must be missing/overlooking something because I cannot seem to get the audio to be clear after the rebuild. 0 is unity gain, numbers less than 1. This is G'day all, I come to you with cap in hand, as this is really getting frustrating. I'd like to pipe the Hello everything is fine? I'm new to OP25. 04 and listening to p25 phase 2 the only problem i am having is the audio is breaking up really bad is there a driver problem or maybe just a code i can run to fix this problem anyone else have this issue. op25_audio::open_socket(): enabled udp host(127. I'm not using a dedicated device, that isn't an option. 04. 2 file. Now click on the Recording Tab. I have gotten it running, and it is decoding control channel data, and seems to be following Thanks in advance for reading this and any help you might be able to share. Seems like OP25 is working great but I only get 1 transmission worth of audio at best then it's silent when I start it output. liq of commenting/uncommenting the ALSA and PulseAudio lines to get the OP25 audio to the BTspeaker. 25. 04) and DragonOS Focal (20. 08600e6 -o Hi there, Running a RPI3+ and trying to install OP25. 7 Alsa plug into pulseaudio? Pulse Audio is going to be your best option if you are running a Pi4 with display & keyboard. exe may need to be fixed if the variable expansion doesn't work) I don’t remember the details, but I used the 64 bit OS for the pi. 6. liq file and it appears my connections settings are correct as evidenced by Winamp receiving meta data. In the Linux version, you only get an additional RTL direct API, and the STDIN where you can pipe the output of another command/software directly into the input of DSD-FME. Pulseaudio doesn't auto-start on Buster, so you'll need to make provisions to start it at boot time, or manually if you require it. go to Pulse Audio Volume Control and choose the Playback tab. 1), wireshark(23456), audio(23456) p25_frame_assembler_impl: do_imbe[1], do_output[0], do_audio_output[1], do_phase2_tdma[1], do_nocrypt[1] If not, install pavucontrol (sudo apt install pavucontrol). I also have a network PulseAudio server up and running as well as a liquidsoap server. The […] Just wondering if anyone knows how to use a chinese knockoff SDRPlay RSP1 with op 25? I have used this command : . OP25 is a not-for-profit project to bring together folks that are interested in implementing APCO P25 using a software-defined radio. Multiple vendors make and sell Project 25 systems and compliant radios. I can decode P25 phase 1 with the -U command line parameter and I can hear decoded voice through my laptop headphones. The baofeng uv-5ra connected to the radio-tone controller is set to receive on 449. Anyone running the boatbod fork of op25 who needs a little volume boost can now achieve this direct from the command line using a new "-x scale-factor" parameter. liq and the Icecast connection is good but of course I would still like to have local audio at the same time. I was able to compile this fork and rx. py line to stream the audio? dockerized build of op25 (boatbod). py, but I would like to use multi_rx. When you install gqrx it forces you to have Pulse Audio. 5, 1 channel, outputs using pulse audio, and is verbose (shows levels every few seconds). This procedure removes normal PulseAudio user-based permissions restrictions to facilitate the unattended and headless operation applications like op25 and Liquidsoap to run as a system services under the control of systemd. I followed the instructions online from a few places and I got op25 working just dandy on the laptop in relatively short order. my startup commandline is as follows It can also read OP25 symbol capture bins by using -i filename. There are several "subsystem" features defined as part of the Project 25 Standard to For the life of me I cannot figure out what I am doing wrong. I simply added @reboot pulseaudio --start to my crontab that starts pulseaudio at boot time. /dsd -i - -o pa:1 I'm trying to do the same with APCO Project 25 (P25) Trunked Radio Systems (TRSs) are systems that follow the open APCO Project 25 Standard for Public Safety TRSs. Jan 30, 2021 · Looks like audio data is being received and it connects with Pulse or ALSA. Audio on these systems is exclusively digital using the APCO-25 Common Air Interface (P25 CAI) standard. 0 reduce the volume and numbers I got op25 up and running on Ubuntu 16. Use this to route the output of op25 to the input of zellostream. But as soon as I opened PulseAudio manager and went to the "Devices" tab it started working. I just installed OP25 onto a RPI4 by following some online tutorials. Download DragonOS for free. py --args 'rtl' -N 'LNA:47' -S 960000 -f 769. If you're running rx. py so that I can add radio ID tags. alsa(input) # ICECAST STREAMING # Uncomment to enable output to an icecast server # Change the "host", "password", and "mount" strings appropriately first! # For metadata to work properly, the host address given here MUST MATCH the address in op25's meta. When op25 is started at boot, it generally has no access to PulseAudio because that doesn't start until a user logs in to the desktop. DragonOS Noble (24. A block diagram of the major decoder functions is shown below: I pulled OP25 from boatbod's github repo and it's working well on Ubuntu 18. LOG/V – This gives you a pop-up prompt where you can enter a number telling OP25 how much or little verbosity of logging data you want saved in the stderr. I'm using an old NooElec RT820T radio. The RTL TCP server reports a R820T tuner with 29 RF and 0 IF gains. May 1, 2020 · I just added the ability for op25 to send sound to the PulseAudio system in lieu of ALSA. liq script. Is there another line I need to add to OP25. Try changing op25 so that it natively uses the "pulse" interface rather than alsa. Hey all, OP25 is an awesome product. The […] I recently purchased another Pi a Pi 5 8GB model and am trying to get OP25 to run on it. What should I do to get audio? Thanks a lot for everyone's help. I've got Linux Mint 20 running on an old laptop. Previous wisdom was to eliminate Pulse Audio and use ALSA directly, but these days I think you're better off using Pulse Audio with liquidsoap as the glue between op25 and the sound drivers. I'm already doing this with gqrx and dsd, by broadcasting with UDP and inputting the data into dsd as such (it works just fine): socat udp-listen:7355 - | . If running headless, pulse can be a PITA because of permissions issues when you try to start the op25 app at boot time. exe to hear the raw audio packets on An update for anyone that finds this useful I was looking to set up OP25 on my Windows machine without having to dual boot. pulseaudio-equalizerfor equalizer sink (qpaeq) 4. The talk group is not encrypted. /rx. OP25 seems to be working fine, but I am not getting any audio output. pulseaudio-bluetooth for bluetooth support (Bluez), see bluetooth headsetpage 3. I have several other versions of OP25 running on Pi-4s with no issues. I did the installation, but no sound comes out, no audio at all. I think the tuning is far enough off that you may not be decoding much voice. That liquidsoap server is also the end point for my RTLSDR-Airband server and works fantastically. Hardware is a Win7 Pro dockerized build of op25 (boatbod). Start pulseaudio (I use the below command in a batch file in my startup folder, path to pulseaudio. The persistent tuning error messages are likely of more significance than you may realize. liq? I've been able to set get OP25 up and running on a dedicated Linux machine using the instructions from the VM thread. I have read and followed so many threads and I keep coming up empty. It was pretty painless to setup everything including TGIDs. *Until you install the operating system, the default user = live / no password. Using pulseaudio's built in monitor sinks is not an option: that requires using a dedicated sound card cranked to 100% per application. Any one have any ideas? I have a well functioning OP25 instance that has been up and running for some time. Both should be playing to the Built-in Audio Device. Oct 15, 2025 · Most likely it'll be PulseAudio permissions. I'm trying to use op25 on Artix Linux, with Python 3. Contribute to boatbod/op25 development by creating an account on GitHub. obws, m9tat, ihej9, lkyn, ykrdb, vhnkpz, un7p, r2x7, 9lfd, 43gw,