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  • 大小: 3KB
    文件類型: .rar
    金幣: 2
    下載: 1 次
    發(fā)布日期: 2021-08-09
  • 語言: Matlab
  • 標(biāo)簽: MATLAB??

資源簡(jiǎn)介

使用MATLAB和聲卡錄音,然后做FFT,繪制聲音的波形圖和頻譜圖

資源截圖

代碼片段和文件信息

function?record(op)

global?H_RECORD?F_RECORD?AXIS_RECORD?ai?data?z_data?R_fs?R_samp_len

global?ZOOM_HISTORY

if?nargin?==?0?%?if?no?input?argument?draw?the?GUI
???op?=?0;
end

%spec?=?‘wideband‘;
spec?=?‘narrowband‘;
wideband_time?=?4e-3;
narrowband_time?=?25e-3;
%window_width?=?200; %?window?width?for?FFT
%step_size????=?100;??%?window?movement
fft_pts??????=?2048;?%?#?of?points?in?the?FFT

switch?op
???
case?0?%?Draw?figure
???
???clear?global?data??%?erase?any?previously?recorded?data
???
???width?=?600;
???height?=?400;
%?圖形界面總體的設(shè)置???
???F_RECORD?=?figure(‘numbertitle‘‘off‘...
?????????‘position‘[120?120?600?400]...
?????????‘name‘‘Record?and?Feature?extraction‘...
?????????‘color‘[0.8?0.8?0.8]...
?????????‘MenuBar‘‘none‘);
??
??hm_q=uimenu(F_RECORD‘label‘‘File‘);
???????uimenu(hm_q‘label‘‘O&pen‘‘callback‘‘kcdopen13_wav‘);
???????uimenu(hm_q‘label‘‘S&ave‘‘callback‘‘record(4)‘);
???????uimenu(hm_q‘label‘‘L&oad‘‘callback‘‘kcdloadfile‘);
???????uimenu(hm_q‘label‘‘Q&uit‘‘callback‘‘record(5);index2‘);
???????uimenu(hm_q‘label‘‘C&lose‘‘callback‘‘record(5)‘);

?hm_qq=uimenu(F_RECORD‘label‘‘Record‘);
?????????uimenu(hm_qq‘label‘‘Record‘‘callback‘[‘record(1)‘]);

?hm_qqq=uimenu(F_RECORD‘label‘‘Play‘);
????????uimenu(hm_qqq‘label‘‘Play‘‘callback‘‘record(2)‘);

?hm_qqqq=uimenu(F_RECORD‘label‘‘Feature‘);
????????uimenu(hm_qqqq‘label‘‘weveletⅠ‘‘callback‘‘recode(6)‘)
????????uimenu(hm_qqqq‘label‘‘weveletⅡ‘‘callback‘‘recode(7)‘);
????????uimenu(hm_qqqq‘label‘‘wevelet‘‘callback‘‘recode(8)‘);


hm_qqqqq=uimenu(F_RECORD‘label‘‘Help‘);
????????uimenu(hm_qqqqq‘label‘‘Help‘‘callback‘‘NNEditionInfo‘);
????????
????????
RECORD_axes1=axes(‘position‘[50/width?(height-195)/height?500/width?120/height]);?
RECORD_axes2=axes(‘position‘[50/width?(height-355)/height?500/width?120/height]);


H_RECORD(1)?=?uicontrol(‘style‘‘text‘...
??????‘Units‘‘normalized‘?...
??????‘Position‘[200/width?(height-30)/height?180/width?20/height]...
??????‘BackgroundColor‘[.8?.8?.8]...
??????‘fontsize‘12...
??????‘String‘‘Welecom‘);
??
H_RECORD(2)?=?uicontrol(‘style‘‘text‘...
??????‘Units‘‘normalized‘?...
??????‘Position‘[200/width?(height-55)/height?180/width?20/height]...
??????‘BackgroundColor‘[.8?.8?.8]...
??????‘fontsize‘12...
??????‘String‘‘??‘);
H_RECORD(4)?=?uicontrol(‘style‘‘Slider‘...?%?user?selects?time?length?
??????‘Units‘‘normalized‘?...
??????‘Position‘[420/width?(height-35)/height?100/width?14/height]...
??????‘Min‘0.1‘Max‘1‘Value‘1...
??????‘SliderStep‘[1/5-0.000001?1/5]...
??????‘Callback‘‘record(3)‘);
H_RECORD(5)?=?uicontrol(‘style‘‘text‘...??%?diplays?time?length
??????‘Units‘‘normalized‘?...
??????‘Position‘[420/width?(height-54)/height?100/width?14/height]...
??????‘BackgroundColor‘[.8?.8?.8]...
??????‘String‘‘Length?-?1?sec‘);
??
??


?uicontrol(F_RECORD‘style‘‘text‘‘u

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????9517??2009-10-16?06:10??record.m

-----------?---------??----------?-----??----

?????????????????9517????????????????????1


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