looping in all audio files

조회 수: 4(최근 30일)
Abdullah Mogazi
Abdullah Mogazi 2022년 8월 16일
답변: jibrahim 2022년 8월 18일
I'm trying to remove silence in audio files I already did that in every single file but I still have thousand of another files. but to save time, how I can loop them to silence all files in the same time and be able to download all new audios?. I tried but it gets me some errors.
clc; clear all; [filenames, pathname] = uigetfile({'.wav'},'Select file .wav', ... 'MultiSelect', 'on'); fullpathnames = fullfile(pathname, cellstr(filenames)); numfiles = length(fullpathnames); audio = cell(numfiles, 1); fs = zeros(numfiles, 1); for i = 1: numfiles
[audio{i}, fs(i)] = audioread(fullpathnames{i}); end % do framing f_d = 0.25; f_size = round(f_d
fs); n = length(audio); n_f = floor(n/f_size); %no. of frames temp = 0; for i = 1 : n_f
frames(i,:) = audio(temp + 1 : temp + f_size); temp = temp + f_size; end % silence removal based on max amplitude m_amp = abs(max(frames,[],2)); % find maximum of each frame id = find(m_amp > 0.03); % finding ID of frames with max amp > 0.03 fr_ws = frames(id,:); % frames without silence % reconstruct signal audio_r = reshape(fr_ws',1,[]); plot(audio_r); title('speech without silence'); hold on; plot(audio,'r'); legend('After Silence Removal','Original Signal'); frame_analysis_silence_removal.m Displaying frame_analysis_silence_removal.m.

답변(2개)

Benjamin Thompson
Benjamin Thompson 2022년 8월 16일
dir('*.wav') will return a struct containing all the audio file names. Then you can pass the name field of each element of that structure array to audioread in a for loop. That would take uigetfile out of the picture.
  댓글 수: 3
Benjamin Thompson
Benjamin Thompson 2022년 8월 17일
Here is a small sample to try yourself and if you have problems and want to post a new sample of your code for help, you may do that.
>> cd rtwdemo_roll_ert_rtw\
>> D = dir('*.c')
D =
2×1 struct array with fields:
name
folder
date
bytes
isdir
datenum
>> D(1).name
ans =
'ert_main.c'
>> D(2).name
ans =
'rtwdemo_roll.c'

댓글을 달려면 로그인하십시오.


jibrahim
jibrahim 2022년 8월 18일
audioDatastore can simplify this type of task.
ads = audioDatastore(yourFolder);
% Read all files, one by one, using a while-loop
while hasdata(ads)
[data,info] = read(ads);
% do whatever you want with the data
end

제품


릴리스

R2022a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by