c# - How to save an audio capture in a wav file using ASIO and Naudio? -


so far, wrote :

private asioout asiodriver; private bufferedwaveprovider buffer;  string[] drivernames = asioout.getdrivernames(); asiodriver = new asioout(drivernames[1]); buffer = new bufferedwaveprovider(new waveformat(samplerate, 16, 2)); asiodriver.audioavailable += new eventhandler<asioaudioavailableeventargs>(asiodriver_audioavailable); asiodriver.initrecordandplayback(buffer, 2, samplerate); asiodriver.play();  private void asiodriver_audioavailable(object sender, asioaudioavailableeventargs e) {      byte[] buf = new byte[e.samplesperbuffer * 4];     (int = 0; < e.inputbuffers.length; i++)     {         marshal.copy(e.inputbuffers[i], buf, 0, e.samplesperbuffer * 4);         marshal.copy(buf, 0, e.outputbuffers[i], e.samplesperbuffer * 4);          if (recorderon && == 1)         {             recorder.addinputtostream(buf);         }     } }

this part used capture , playback sound guitar asio. no problems far.

public void addinputtostream(byte[] buffer) {     byte[] sample = new byte[buffer.length / 4];     if (wavewriter == null) wavewriter = new wavefilewriter(@"c:\temp\test0001.wav", new waveformat(44100, 16, 1));     (int = 0; < buffer.length; = + 4)     {         sample[i/4] = (byte)convert.tosingle(buffer[i] + buffer[i + 1] + buffer[i + 2] + buffer[i + 3]);     }     wavewriter.write(sample, 0, sample.length); }

the problem appears in method addinputtostream, sound put in .wav file have lot of "audio parasites" in file. irritating. tried change i variable when call method, not used convert.tosingle same result.

i suspect problem waveformat of wavewriter don't know i'm missing. of have clue ?

you need create wavefilewriter , write samples out. pretty simple, took me while also. (note: didn't setup waveprovider, have part already).

 class asiosample {     private naudio.wave.asioout _audiodevice;     public wavefilewriter asiowavefilewriter;     public asiosample()     {         //this set 1 channel         asiowavefilewriter = new wavefilewriter("sample.wav", new waveformat(48000, 1));         _audiodevice = new naudio.wave.asioout(2);//or whatever         _audiodevice.initrecordandplayback(_waveprovider, 1, 48000);         _audiodevice.audioavailable += new eventhandler<naudio.wave.asioaudioavailableeventargs>(onaudioavailable);         _audiodevice.play();     }      private unsafe void onaudioavailable(object sender, naudio.wave.asioaudioavailableeventargs e)     {         var floatsamples = new float[e.samplesperbuffer * e.inputbuffers.length];         e.getasinterleavedsamples(floatsamples);         asiowavefilewriter.writesamples(floatsamples, 0, floatsamples.length);         asiowavefilewriter.flush();     }  }

Comments

Post a Comment

Popular posts from this blog

c# - Validate object ID from GET to POST -

i have method allows user access comment have made on site. have post method lets them update comment. my normal solution send entire comment model through, let them update it, update on database when post back. involve sending commentid through in hiddenfor , can manipulated. how can verify commentid sent in get method same i'm getting in post , not able alter comment wish? how can verify commentid sent in method same i'm getting in post? basically have validate following things in post - user logged-in user. authenticated users post comments. commentid in post , should valid commentid , should present in database. userid associated logged-in user should same userid associated comment . comment should contain userid column, can check @ time of update. to make sure update happens comment has been sent in get - hold commentid in session , in post action compare commentid value in session .
Read more

node.js - Custom Model Validator SailsJS -

when using custom model validator checks record within model. return within spread doesn't seem end control flow. //post.js model /** * custom validator **/ types: { isuservalid: function(user_id) { var promise = require('bluebird'); promise.all([ user.findone({id: user_id}) ]) .spread(function(user) { console.log(user); if (user === null || user === undefined) { console.log('failed'); return false; }else{ console.log('passed'); return true; } }); } }, my response standard validation failed response. { "error": "e_validation", "status": 400, "summary": "1 attribute invalid", "model": "post", "invalidattributes": { "owner": [ { "rule": "isuservalid", ...
Read more

php - Find a regex to take part of Email -

i have following emails need extract part from: bestellnummer xxx: 1 von xxx, 1er pack ------------- anfang der nachricht ------------- foo bar baz foo bar baz // <<<<< need text here ------------- ende der nachricht ------------- ------------- anfang der nachricht ------------- foo bar baz foo bar baz ------------- ende der nachricht ------------- there 0 unlimited occurences of ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- and i'm able extract first part regex: $re = "/------------- .*? -------------.?(.*?).?------------- .*? -------------/s"; but, i'm quite new on learning regex, i'm pretty sure there must better regex extract part (foo bar baz foo bar baz) of text between ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- as can in different languages, i'm using .? to match between hyphens. i...
Read more