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> frecventmetru pe mobil, masurarea frecventei de vibratie curele cu mobilul

gabi_g
post 23 Apr 2013, 20:25
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Nu stiu de ce nu-ti merge. Aplicatia mea seteaza microfonul sa captureze sunetul la o frecventa de samplare de 8000 Hz, in format pcm. Posibil ca hardware-ul microfonului telefonului sa nu suporte parametrii de mai sus. Vezi daca ai vreo aplicatie preinstalata de Recorder, daca ai incearca sa faci o inregistrare la calitate standard, salveaz-o in calculator si vezi daca este wav o deschizi cu aplicatia sndrec32 din Windows, care iti arata ce parametrii are. Eu pe Nokia C5 am o aplicatie Recorder, a fost preinstalata pe telefon, are niste setari de calitate a sunetului, standard, ridicata. Daca aleg calitate standard imi salveaza fisiere wav. Si daca dai click dreapta pe fisier iti arata parametrii si formatul.

This post has been edited by gabi_g: 23 Apr 2013, 20:51


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corbex
post 24 Apr 2013, 10:05
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Pe mine, la instalare, m-a intrebat daca permit accesul la comenzile hard. Am bifat DA.


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dan_g
post 24 Apr 2013, 19:27
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@gabi_g
Aplicatia pt inregistrare din softul telefonului salveaza fisierele in format amr si cand dau click dreapta nu-mi arata niciun parametru al fisierului. Am atasat o inregistrare scurta in caz ca te ajuta cumva.
Attached File  Se__nregistreaz___1_.zip ( 16.83k ) Number of downloads: 18


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gabi_g
post 25 Apr 2013, 08:32
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@dan_g
Downloadeaza si reinstaleaza aplicatia, du-te in meniul Setting din aplicatie. Si spune-mi ce scrie la Support Audio Capture si Supported Audio Content Types si Audio Encodings. La mine arata true pentru prima si audio/amr;audio/basic;/audio/x-au;audio/au;audio/wav;/audio/x-wav.

This post has been edited by gabi_g: 25 Apr 2013, 09:04


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dan_g
post 25 Apr 2013, 12:21
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La Support Audio Capture - true;
La Supported Audio Content Types - audio/amr;
La Audio Encodings - encoding=amr; encoding=amr-nb; encoding=pcm.

This post has been edited by dan_g: 25 Apr 2013, 12:22


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gabi_g
post 25 Apr 2013, 13:48
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QUOTE(dan_g @ 25 Apr 2013, 12:21)
La Support Audio Capture - true;
La Supported Audio Content Types - audio/amr;
La Audio Encodings - encoding=amr; encoding=amr-nb; encoding=pcm.
*



Da, este clar telefonul nu suporta sa captureze sunetul in format audio/wav.


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dan_g
post 25 Apr 2013, 20:30
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Am inteles, multumesc pentru lamuriri.


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Amedeus
post 25 May 2013, 10:16
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Eu am incercat aplicatia si modul de functionare pe un Samsung Galaxy S Advance si merge bine.
La testare am folosit un fisier audio pentru testarea difuzoarelor, sunet cu o frecventa de 100 Hz.
Iata rezultatul:

SC20130525_110743.png ( Size: 69.18k ) Number of downloads: 308


Am tinut telefonul in apropierea difuzorului (5 cm) fara ca volumul acestuia sa fie prea mare. Precizia e foarte ok (se vede ca softul afisa 100 Hz), nu stiu cum se va comporta pe masina, unde sunetul e mult mai mic in amplitudine, ma gandesc.

Multumim relizatorului. cheers.gif

This post has been edited by Amedeus: 25 May 2013, 10:18


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gabi_g
post 27 May 2013, 08:27
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Repet, l-am conceput strict pentru curele. Amplitudinea vibratiei scade exponential. Daca o sa-l pui langa curea, la 1-2 cm primele vibratii vor avea amplitudine de peste 90%, apoi amplitudinea scade exponential. Durata unei astfel de vibratii este mica cam in jur de 300ms. L-am mai modificat sa captureze vibratii de la 60 Hz ( pentru motoare F8Q si F9Q unde cureaua trebuie sa fie intinsa la 65 Hz).


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goaspy
post 17 Sep 2013, 14:16
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Salut, vreau sa incerc si eu aplicatia pe android, link-ul original nu mai merge, de unde o pot descarca?


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gabi_g
post 17 Sep 2013, 14:50
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Da-mi un email la gabigafu@hotmail.com ca sa ti-o trimit


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einstein1984
post 2 Mar 2018, 13:45
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https://play.google.com/store/apps/details?...nsiometre&hl=en varianta de android si apple, daca o avea cineva nevoie


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