Attachment #97630 for bug #136408

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All requested sample rates will be rounded to the nearest threshold value.
Possible values range between 0 (disabled) and 500.
Default is 25.
.It Va hw.snd.feeder_rate_polyphase_max
Adjust to set the maximum number of allowed polyphase entries during the
process of building resampling filters.
Only applicable when the SINC interpolator is used.
Default value is 183040.
Set to 0 to disable polyphase resampling.
.It Va hw.snd.feeder_rate_quality
Sample rate converter quality.
Default value is 1, linear interpolation.
Available options include:

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Lines 243-255 Link Here

(-)share/man/man4/pcm.4 (-2 / +2 lines)
243	All requested sample rates will be rounded to the nearest threshold value.	243	All requested sample rates will be rounded to the nearest threshold value.
244	Possible values range between 0 (disabled) and 500.	244	Possible values range between 0 (disabled) and 500.
245	Default is 25.	245	Default is 25.
246	.It Va hw.snd.feeder_polyphase_max	246	.It Va hw.snd.feeder_rate_polyphase_max
247	Adjust to set the maximum number of allowed polyphase entries during the	247	Adjust to set the maximum number of allowed polyphase entries during the
248	process of building resampling filters.	248	process of building resampling filters.
249	Only applicable when the SINC interpolator is used.	249	Only applicable when the SINC interpolator is used.
250	Default value is 183040.	250	Default value is 183040.
251	Set to 0 to disable polyphase resampling.	251	Set to 0 to disable polyphase resampling.
252	.It Va hw.snd.feeder_quality	252	.It Va hw.snd.feeder_rate_quality
253	Sample rate converter quality.	253	Sample rate converter quality.
254	Default value is 1, linear interpolation.	254	Default value is 1, linear interpolation.
255	Available options include:	255	Available options include: