{"action":"created","issue":{"url":"https://api.github.com/repos/Sleepwalking/libllsm/issues/6","repository_url":"https://api.github.com/repos/Sleepwalking/libllsm","labels_url":"https://api.github.com/repos/Sleepwalking/libllsm/issues/6/labels{/name}","comments_url":"https://api.github.com/repos/Sleepwalking/libllsm/issues/6/comments","events_url":"https://api.github.com/repos/Sleepwalking/libllsm/issues/6/events","html_url":"https://github.com/Sleepwalking/libllsm/pull/6","id":160884559,"number":6,"title":"Add Least-Square harmonic analysis method (for muiltiband-noise branch)","user":{"login":"tuxzz","id":5357765,"avatar_url":"https://avatars.githubusercontent.com/u/5357765?v=3","gravatar_id":"","url":"https://api.github.com/users/tuxzz","html_url":"https://github.com/tuxzz","followers_url":"https://api.github.com/users/tuxzz/followers","following_url":"https://api.github.com/users/tuxzz/following{/other_user}","gists_url":"https://api.github.com/users/tuxzz/gists{/gist_id}","starred_url":"https://api.github.com/users/tuxzz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tuxzz/subscriptions","organizations_url":"https://api.github.com/users/tuxzz/orgs","repos_url":"https://api.github.com/users/tuxzz/repos","events_url":"https://api.github.com/users/tuxzz/events{/privacy}","received_events_url":"https://api.github.com/users/tuxzz/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":5,"created_at":"2016-06-17T13:10:50Z","updated_at":"2016-08-02T03:46:53Z","closed_at":"2016-06-22T03:41:50Z","pull_request":{"url":"https://api.github.com/repos/Sleepwalking/libllsm/pulls/6","html_url":"https://github.com/Sleepwalking/libllsm/pull/6","diff_url":"https://github.com/Sleepwalking/libllsm/pull/6.diff","patch_url":"https://github.com/Sleepwalking/libllsm/pull/6.patch"},"body":"## Changes\r\n1. Add Least-Square harmonic analysis method. (qhm.c and qhm.h, need 3rd-party lib, see below)\r\n2. Update libpyin to the latest version.\r\n3. Fix inline functions.\r\n\r\n## About QHM-AIR\r\n\r\n### Requirements\r\n* CBLAS for zgemm\r\n* LAPACKE for zgels and zgelsd\r\n\r\nTested on OpenBLAS and reference blas/lapack\r\n\r\n### Advantage\r\nObviously quality improving compared to FFT Peak picking.\r\nBy looking: http://img.vim-cn.com/4a/2a8b0a135ed0e0fd35ad0327570ba29922a23b.png\r\nBy listening: https://mega.nz/#!60MVwTxY!01Vy9k-50-BqpWPqMcUOIUv0iRTTTSj6fRjTa2zLTIk\r\nVoice source: Gakkou Gurashi\r\n\r\n### Disadvantage\r\nSlower than fft peak picking. Especially on using zgelsd method for LS.\r\n\r\n### Works Cited\r\n* Pantazis Y, Rosec O, Stylianou Y. Iterative estimation of sinusoidal signal parameters[J]. Signal Processing Letters, IEEE, 2010, 17(5): 461-464.\r\n\r\n* Degottex G, Stylianou Y. Analysis and synthesis of speech using an adaptive full-band harmonic model[J]. Audio, Speech, and Language Processing, IEEE Transactions on, 2013, 21(10): 2085-2095.\r\n\r\n**I hope future version of morsampler can have QHM-AIR as an optional harmonic analysis method.**"},"comment":{"url":"https://api.github.com/repos/Sleepwalking/libllsm/issues/comments/236787836","html_url":"https://github.com/Sleepwalking/libllsm/pull/6#issuecomment-236787836","issue_url":"https://api.github.com/repos/Sleepwalking/libllsm/issues/6","id":236787836,"user":{"login":"tuxzz","id":5357765,"avatar_url":"https://avatars.githubusercontent.com/u/5357765?v=3","gravatar_id":"","url":"https://api.github.com/users/tuxzz","html_url":"https://github.com/tuxzz","followers_url":"https://api.github.com/users/tuxzz/followers","following_url":"https://api.github.com/users/tuxzz/following{/other_user}","gists_url":"https://api.github.com/users/tuxzz/gists{/gist_id}","starred_url":"https://api.github.com/users/tuxzz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/tuxzz/subscriptions","organizations_url":"https://api.github.com/users/tuxzz/orgs","repos_url":"https://api.github.com/users/tuxzz/repos","events_url":"https://api.github.com/users/tuxzz/events{/privacy}","received_events_url":"https://api.github.com/users/tuxzz/received_events","type":"User","site_admin":false},"created_at":"2016-08-02T03:46:53Z","updated_at":"2016-08-02T03:46:53Z","body":"But please NOTICE that sinusoidal frequencies produced by qhm_air may be NOT in order, which may be cause an error on envelope analysis step."}}
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