1 args "--no-version --no-help"
3 purpose "Transform raw audio to a different sample rate"
9 "choose converter type"
11 values = "best", "medium", "fastest", "zero_order_hold", "linear"
16 best: This is a bandlimited interpolator derived from the
17 mathematical sinc function and this is the highest quality
18 sinc based converter, providing a worst case Signal-to-Noise
19 Ratio (SNR) of 97 decibels (dB) at a bandwidth of 97%.
21 medium: This is another bandlimited interpolator much like the
22 previous one. It has an SNR of 97dB and a bandwidth of 90%. The
23 speed of the conversion is much faster than the previous one.
25 fastest: This is the fastest bandlimited interpolator and
26 has an SNR of 97dB and a bandwidth of 80%.
28 zero_order_hold: A Zero Order Hold converter (interpolated
29 value is equal to the last value). The quality is poor but
30 the conversion speed is blindlingly fast.
32 linear: A linear converter. Again the quality is poor, but
33 the conversion speed is blindingly fast.
37 include(sample_rate.m4)
38 include(sample_format.m4)
40 option "dest-sample-rate" d
41 #~~~~~~~~~~~~~~~~~~~~~~~~~~
42 "sample rate to convert to"