Change Sampling Rate to 44,100 kHz in Text to Speech via CLI (default is 16,000 kHz)

Question

Is there a way to change default audio format in Azure Cognitive Services in Text to Speech CLI from 16,000 kHz to something higher, IE 44,100 kHz?

Answer 1

@Ed Czelada I believe you can set the format of the output file using the --format option with the spx synthesize command.

spx synthesize [...] --format FORMAT    

You can get the format by running help on the formats that are supported.

spx help synthesize format  

This should give you all the supported formats further by running help on all the formats.

spx help synthesize wav  
spx help synthesize mp3  
spx help synthesize ogg  
spx help synthesize opus  
spx help synthesize webm  
spx help synthesize siren  
spx help synthesize raw  

Set the format that is required in the command and check if this works. For example, the default is riff-16khz-16bit-mono-pcm for wav other formats supported for wav are

spx help synthesize wav  
  
USAGE: spx synthesize [...] --format FORMAT                                                                                      │  
│                                                                                                                                 │  
│  WHERE: FORMAT is wav                                                                                                           │  
│     OR: FORMAT is riff-16khz-16bit-mono-pcm                                                                                     │  
│     OR: FORMAT is riff-24khz-16bit-mono-pcm                                                                                     │  
│     OR: FORMAT is riff-48khz-16bit-mono-pcm                                                                                     │  
│     OR: FORMAT is riff-8khz-16bit-mono-pcm                                                                                      │  
│     OR: FORMAT is riff-8khz-8bit-mono-alaw                                                                                      │  
│     OR: FORMAT is riff-8khz-8bit-mono-mulaw                                                                                     │  
│     OR: FORMAT is riff-16khz-16kbps-mono-siren                                                                                  │  
│                                                                                                                                 │  
│  NOTE: The default wav format is riff-16khz-16bit-mono-pcm  

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