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Re: Mac Audio Codec


 

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As an aside, I re-pulled the source and built direwolf..?

Some thoughts :?

1. The MacOSX instructions are lacking. Ports is far out of support and Homebrew is the replacement.?
2. The Additions that Martin added need to be documented better, specifically around?brew install hidapi.?
3. The CM108 tools are not there in OSX, so there is no documented method of seeing the sound card and building Direwolf with PTT support with GPIO.. The end user gets an error when trying to enable PTT CM108.


As for the sound device, upon starting Direwolf on a Mac, you are given the available sound devices. In the case of Digirig (standard), you get?"USB PnP Sound Device¡± .. So ADEVICE?"USB PnP Sound Device¡±?"USB PnP Sound Device¡± works (on my system)
Then you need to determine the serial device. For me, I ls -lart /dev/ and see the last cu and tty devices. In the case of my Digirig, it¡¯s?/dev/tty.usbserial-13120 so the line to enable PTT is :?PTT /dev/tty.usbserial-13120 RTS

I was able to successfully test APRS and Packet (Winlink) with this setup. Direwolf presents AGW and KISS ports and apps on my phone like ?and RadioMail both see the dns-sd share of the TNC. ?The caveat on Mac is that you will need to adjust the volume for the input/output device in the Sound settings AND the radio¡¯s volume knob to alleviate the errors/warnings about volume.


What I would like to see is better support for the CM108 device in OSX, this means a working cm108 tool to determine the device and capabilities as well as better documentation in Direwolf for enabling this device. It USED to work and in the past I was able to get the AIOC and Digirig Lite to work, but these days these devices are not working on my updated M4 Mac (ARM processor)

Hope this helps and I¡¯m absolutely open to help if I missed something around building Direwolf for CM108/Digirig Lite etc..

73 de K6EF




On Apr 16, 2025, at 2:47?PM, Mark C via groups.io <k6ef@...> wrote:

?Hi Tim,?

Arecord is part of the Alsa toolset and not present on the Mac.?

Try using ADEVICE?"USB Audio Device¡±?"USB Audio Device¡±

For the Digirig, (depending on which one you have) it could be PTT CM108 but I¡¯ve not played with Direwolf on the Mac in a while, I¡¯ve been using it on Linux hosts mostly. I¡¯ll check and see, since I have both the Digirig and the Digirig Lite

Mark
K6EF

On Apr 16, 2025, at 1:27?PM, Tim Huffaker via groups.io <thuffaker@...> wrote:

Hello,
?
I am trying to find the audio codec for Direwolf with a Digirig on my Mac. ?I do not know a command like?arecord -l to get the sound cards for ADEVICE? "USB Audio Codec:6"? "USB Audio Codec:5".?I believe the PPT is /dev/tty.usbmodem223101 RTS?cards I know this is different from Linux.

?

Tim
KM4ESU ?


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