Mickey Mouse

[Ron Patton]

Hi,

Thanks to the FreeDV development team,  a development release allows for the recording of decoded audio.  This has really helped me somewhat narrow down a long standing issue I have been experiencing.   When listening to the audio via my headset,  everyone sounds like Mickey Mouse.  When the decoded audio is played back via Windows Media player the audio is fine and sounds very natural.  So I have two questions:

1) Where in processing chain is decoded audio recorded to the WAV file?.  Is it before audio processing as defined in the Tools -> Filter -> Speaker Out Equalizer or after the Equalizer?
2) Does anyone have a idea why audio fed to my headset sounds like Mickey Mouse when the decoded audio played back via Window Media player sound fine?

73,

Ron 

[car...@gmail.com]

Ron,

We've had something similar happen with WinAmp. Looking in the WinAmp forums I see

https://forums.winamp.com/forum/winamp/winamp-technical-support/188178-winamp-makes-my-music-sound-distorted-and-bad-but-windows-media-player-doesn-t

And a comment within initial post:

I created a primary buffer in the Output options....and it fixed everything.

Hopefully others will be able to tell us where a similar change can be made for FreeDV.

Craig/KH6CP

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[Mooneer Salem]

Hi Ron,

Recording takes place after the equalizer in the current set of proposed changes. 

Re: audio issues--can you confirm that the selected sample rates in Tools->Audio Config (in both tabs) match what is set for them in Windows? You can check on the Windows side by going to Settings->System->Sound->All sound devices->[your sound device] and checking out what's shown in the "Format" field. For example, Virtual Audio Cable on my Windows 11 machine is set to 48 kHz sample rate in the below screenshot:

Thanks,

-Mooneer K6AQ

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[Mooneer Salem]

Hi Craig,

Looking at this a bit, it seems this might be something DirectSound specific. FreeDV uses WASAPI to communicate with audio devices on Windows so I'm not sure if there's an equivalent there.

Thanks,

-Mooneer K6AQ

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[Ron Patton]

Hi  Mooneer ,

Here are screen shots of my FreeDV configuration and Windows 10 sound configuration.

[Mooneer Salem]

Any difference if you disable "Allow applications to take exclusive control of this device" for all the devices you're using with FreeDV?

-Mooneer K6AQ 

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[Ron Patton]

Hi,

Nope.  This did not help. 

 A couple of notes:

1) When I set FreeDV to use the same speaker as Windows uses for speaker output for other applications such as You tube and the like, the FreeDV audio sounds fine. 
2) When I set Windows to use the headset for audio output (again You Tube and such), the audio sounds fine.  

For now I will keep the FreeDV audio configured to use the speaker as in item #1 above.  No need to try and fix a one off such as this.  I have a work around.

73,
Ron / W4MMP

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