Optional
float32 (default) emits Float32Array samples; int16-base64 emits a base64 string, which passes through page.exposeFunction unchanged
float32
int16-base64
page.exposeFunction
Which side to emit, both by default
float32(default) emits Float32Array samples;int16-base64emits a base64 string, which passes throughpage.exposeFunctionunchanged