switch to from_twilio_input_device and from_vonage_input_device

[SaadAJ]

TODO(EPD-186): switch to from_twilio_input_device and from_vonage_input_device

Currently, from_input_device in transcriber.py, and from_output_device in synthesizer.py, are set to the default audio format parameters like DEFAULT_SAMPLING_RATE, those correspond to Twilio's audio properties, and are not compatible with Vonage which causes Vonage to break.

A fix is already mentioned as a comment, to switch from a single function from_input_device to unique functions for each telephony provider, from_twilio_input_device and from_vonage_input_device.

[arpagon]

As @SaadAJ points out, To address the issue, you need to modify the transcriber.py

https://github.com/vocodedev/vocode-python/blob/6f7e9cd90710c3cc7f927de4315b6e97906e318d/vocode/streaming/models/transcriber.py#L80
https://github.com/vocodedev/vocode-python/blob/6f7e9cd90710c3cc7f927de4315b6e97906e318d/vocode/streaming/models/synthesizer.py#L58

Change VONAGE_SAMPLING_RATE, VONAGE_AUDIO_ENCODING, and VONAGE_CHUNK_SIZE

Remember to import the VONAGE_SAMPLING_RATE, VONAGE_AUDIO_ENCODING, and VONAGE_CHUNK_SIZE constants at the top of your file.

[arpagon]

Closed as duplicate in favor of #501