[arm-allstar] Recording & Playing Audio Files

[Patrick Perdue]

Why the mp3 step? That's unnecessary and degrades audio before anything 
else happens.

Try just uploading a wav at 16-bit PCM, 8 kHZ mono.

Or, record at a higher sampling rate for reference, resample to 8 kHz, 
save as 16-bit mono wav, or raw ulaw.


On 4/24/2021 4:31 PM, "N4UPC via ARM-allstar" wrote:
> Is there a howto or other source for recording and playing custom audio files from a node?
>
> I think I’m close to the correct method. First I record the audio file as a .mp3 via Audacity on a Win10 PC. Second I transfer the file to my node and convert it to a WAV file. Then I convert the WAV to a UL file, but still no luck. The node just keys up and silence is heard for a few seconds.
>
> Thanks!
>
> 73,
> Scott
> N4UPC
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