Nowhere in either the parent post, nor in the comments, is 'bang for the buck' even talked about. The entire thing seems to be about choosing a higher quality default sampling method due to the availability of faster CPUs. In fact, libsamplerate is never mentioned by name, and src-sinc-.* are only mentioned by listing them with a few others and deeming them 'indistinguishable'.
HOWEVER, in the comments they *do* mention that upsampling causes more distortion than downsampling, and that sampling rates further apart cause more than sampling rates closer together. This isn't terribly important most of the time, except... ... Pulseaudio only supports configuring two sample rates at a time. So you have a default lower one, and if an audio source has a higher sample rate, it'll be upsampled to the alternative, higher sample rate. So what if your alternative sample rate is much higher? I have a sound card that supports 192000, what if I'm curious what that sounds like? I have a fairly fast CPU (i7-4790K with hyperthreading disabled so that each core works as fast as possible), and I have that set up as my alternative sampling rate. But the graphs only test conversion from 44100 to 48000. I have a feeling that the differences will be *much* more noticeable on a setup converting from 48000 to 192000. But now I can't compare using src-sinc-.* because its been removed. And seemingly with no discussion or reason. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1494155 Title: [mako] pulseaudio resample methos missing src-sinc-* Status in pulseaudio package in Ubuntu: Won't Fix Bug description: I tried to change the pulse resampling on my mako to src-sinc-best- quality and medium, to no avail. Later i found out that the pulse shipped with mako isnt capable of using these resampling methods. $ pulseaudio --dump-resample-methods trivial speex-float-0 speex-float-1 speex-float-2 speex-float-3 speex-float-4 speex-float-5 speex-float-6 speex-float-7 speex-float-8 speex-float-9 speex-float-10 speex-fixed-0 speex-fixed-1 speex-fixed-2 speex-fixed-3 speex-fixed-4 speex-fixed-5 speex-fixed-6 speex-fixed-7 speex-fixed-8 speex-fixed-9 speex-fixed-10 ffmpeg auto copy peaks while on an other system (non ubuntu touch) i get the correct resampling methods: $ pulseaudio --dump-resample-methods src-sinc-best-quality src-sinc-medium-quality src-sinc-fastest src-zero-order-hold src-linear trivial speex-float-0 speex-float-1 speex-float-2 speex-float-3 speex-float-4 speex-float-5 speex-float-6 speex-float-7 speex-float-8 speex-float-9 speex-float-10 speex-fixed-0 speex-fixed-1 speex-fixed-2 speex-fixed-3 speex-fixed-4 speex-fixed-5 speex-fixed-6 speex-fixed-7 speex-fixed-8 speex-fixed-9 speex-fixed-10 ffmpeg auto copy peaks ubuntu touch version: current build number: 23 device name: mako channel: ubuntu-touch/stable/ubuntu last update: 2015-08-27 10:42:51 version version: 23 version ubuntu: 20150825.1 version device: 20150819 version custom: 20150825.1 pulseaudio version: pulseaudio: Installed: 1:6.0-0ubuntu9.2 Candidate: 1:6.0-0ubuntu9.2 Version table: *** 1:6.0-0ubuntu9.2 0 100 /var/lib/dpkg/status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1494155/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp