audio

Back in the day I used to use a lapel speaker with my scanners -you know the kind that look like a lapel mic but are speaker only. Anyone try to use one with their SDS150? Is the headphone jack on the SDS150 a stereo or mono? Looking to buy one, but unsure if I need a mono or stereo 3.5mm plug...

Hi All! I'm new to scanning, and a new SDS150 owner. Big learning curve for me - and I'm a ham and a computer programmer... I've been been listening to my local area for a few weeks now, and notice that different users on the same channel/system have very different volume levels. The 'per...

I need IQ Recorded files of DMR for testing. I've searched on Google but didn't find much files, i've got only 3 files which are working correctly. i want to test more files on DSD to complete my project. your presence will be appreciated.

What is the best way to setup the Icom F1721 or F2721 series radios so that audio will pass through the front speaker and the rear 3.5mm audio jack?

Hi, I am planning to make a DIY Audio Amplifier project following this tutorial: Guide To DIY Audio Amplifier with 2N5875 but I can't find the corresponding circuit diagram. I can't find it on Google. Where can I find this circuit diagram?

Hello again, unfortunately I'm having another problem with digital signals (dmr, tetra) with airspy sdrsharp 1921 and sdr-trunk 0.6.1 final version. I had an old i7 laptop with windows 10 where everything ran perfectly, but unfortunately the video card broke and I had to buy a new laptop. I took...

One of the glaring lacking features of this amazing device is BT audio connectivity. Here’s how I hacked it. I used the uGreen airplane BT transmitter and a pair of the cheapest JBL BT earbuds. It’s working very well for me. Hope this helps anyone! I’d love to know of any other solutions out...

I’m currently diving into a new project involving the CS6422-CSZ Audio Signal Processor IC and I’m looking for some insights and experiences anyone might have with this particular IC. I’m especially interested in understanding its integration in complex audio processing setups and any specific...

We have 2 Uniden BCD536HP scanners in remote offices running audio back to our main office through ProScan. Keep getting complaints of poor audio. Would anybody have any tips or suggestions on cleaning up the audio?

Hi All, I was wondering if anyone could shed some light on listening and recording DMR Transmissions. I'm in need of recording some DMR Traffic on a repeater I will be using, however it will record both Slot 1 and Slot 2, is there a way to preference which slot is being listened to? I have...

I have. Motorola Minitor VI Pager. I have the programming cradle and software. I can program frequencies and tones into the pager. What I am having trouble with is adding custom audio to the pager. I am trying to add voice files for the different Switch positions. I am following the instructions...

I have a Unication G5 that I use to monitor my local P25 system. It's a great radio, but my biggest complaint about using it is that different users have vastly different volume levels. At a given knob volume level, some users on some talkgroups will be so quiet they are almost unreadable, while...

I am a 2-way radio dealer with a specific problem with several radios that came in from various clients for repair. At very low volume the radios (Kenwood TK-3300 or TK-3400 series) perform fine. However when turning the volume up to a normal listening volume for a warehouse or industrial...

What, if anything, are you guys using to post-process the audio from sdtrunk to make it sound better? sdrtrunk on a P25 system works great but the audio it outputs is the raw IMBE decoded audio without any sort of post processing. Despite listening on a very nice set of desktop speakers...

SDR# v1.0.0.1919 Audio Recorder v1.3.5.0 Windows 10 & Windows 11 Realtek integrated Audio Card The Audio Recorder appears to just record record White Noise/Hiss, when triggered. It used to work before I started using the DSD Interface Plugin. The basic Audio Simple Recorder still works. Have...

I'm having a weird issue with the SDS-100 and I can't seem to figure it out. I have tried filters, and IFX , changed squelch from 0 to 15 and can't seem to resolve it. The SDS-100 when a transmission comes in 2 out of 5 times, it has this audio sound at the start of the transmission. Its...

Did anyone capture the ATC audio around the mid-air collision over the weekend in Dallas at the airshow?

Anybody out there have experience out there using a Wohler VMQ-4 for monitoring audio from scanners / radios? A previous thread on Zetron Model 27 Recevier Monitor shows a console using a couple of these. The documentation for the device shows that it has either ">100 kOhms balanced; >50 kOhms...

Hi I am struggling with the same problem and didn't see any resolution to this problem as the thread was broken off over licensing discussions. Connecting to a client works, I remember playing with it briefly months ago I once heard some audio. I have now probably messed up the settigns it is...

I really hope this is in the right area - please feel free to relocate the post if I put it in the wrong spot. I stream audio from my phone a lot - mostly scanner feeds either via Zello or via Scanner Radio Pro. I'd like to use a bluetooth speaker/mic for this purpose so I don't have to have...