DataSet for 8K phone calls
Hi,

I have a question about how best to assemble a training dataset, who has experience and can share, thank you. I've been working with NeMo for a few months setting up trainings in Portuguese and so far I'm having good results in transcribing calls. But I still notice some simple errors during transcripts...
My question is, for the type of audio I'm transcribing, should I prefer them in my dataSet? For example, I'm building a dataSet thinking about transcribing phone calls (8K), in my dataSet should I include more phone calls or do I have nothing to do with it? Or would increasing the number of speakers and increasing the audio quality be the best solution?
Since building a good dataSet with hundreds of hours takes a lot of time, I want to avoid investing in one side, otherwise it would have better results...