Hi everyone,
I am having problems with low quality mobile phone calls when submitting a audio file through it.
I am sending the calls with a VoiceXML compatible provider (Nexmo) and it seems that the mobile compression is messing up with my audio.
I have tried many file formats, rates, codecs, filters and effects. Still no good result.
IMHO, the audio seems muffled, or something like that. It's happening only with male voices.
I don't know if it is a mobile codec or transport(compression) issue (europe to americas call).
Any ideas?
Thanks in advance,
Pedro Mazzoni
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