8kHz audio
WHAT IT MEANS
Standard phone call audio quality, which is lower than app or WhatsApp audio.
Real example
Normal phone calls sound “muffled” compared with a video call.
What’s normal
Most phone calls are 8kHz. Many AI models are trained on better-quality audio.
The India angle
Almost all regular calls in India are 8kHz, so test models on real phone audio.
Questions to ask your vendor
Are your models trained on 8kHz phone audio?
What’s the accuracy difference between phone and app calls?
Can I test with my real call recordings?
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Companies that do this
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