Audio input device on Audio Recording

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I have multiple of usb sound card connected to my system and i want to record one certain signal for each sound card. How will I call the name of my USB sound card to work properly without having a dropdown list box on my gui. Direct assigning of sound card is what i am after. Thanks a lot!

C++

audioRecorder->setAudioInput(); // this part is my question on how will i enter the name of my usb sound card

Posted 17-Jan-16 9:13am

Keno Rosario

Updated 17-Jan-16 9:40am

Frankie-C

v2

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[no name] 17-Jan-16 18:01pm

Define "name of my usb card".

Keno Rosario 18-Jan-16 0:07am

The name of the usb sound card i will utilize. Thankyou Sir!
https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/12410528_1240278742653210_1559482723174673786_n.jpg?oh=50832ed3ad9fb9377f22a7e39d91e374&oe=570598B1&__gda__=1464355720_f40d5d8aa203fc351b154c8feaa819e4

Keno Rosario 18-Jan-16 1:18am

my Code goes like this

<pre lang="c++"> QString str1 = ui->lineEdit_8->text();
QString filename = str1 ;
QString Nfile = "N";
QString Nfilename = filename + Nfile;
audioRecorder = new QAudioRecorder(this);
QAudioEncoderSettings audioSettings;
audioSettings.setCodec("wav");
audioSettings.setQuality(QMultimedia::HighQuality);
QString input1 = "USB Pnp Sound Device";
audioRecorder->setAudioInput(input1); // set input device 1(doesn't select USB Pnp Sound)
audioRecorder->setEncodingSettings(audioSettings);
audioRecorder->setOutputLocation(QUrl::fromLocalFile(filename));
audioRecorder->record();
QString input2 = "USB Audio Device";
noiseRecorder = new QAudioRecorder(this);
noiseRecorder->setAudioInput(input2); // same goes with this
noiseRecorder->setEncodingSettings(audioSettings);
noiseRecorder->setOutputLocation(QUrl::fromLocalFile(Nfilename));
noiseRecorder->record();</pre>

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Jochen Arndt · Answer 1 · 2016-01-18T00:18:00

The QAudioRecorder Class[^] provides the audioInputs() function returning a list of available names. If you don't want a list box to select from these but use hard coded names, just print the list once to know the names that can be used on your system.

There is also the function audioInputDescription() which provides user friendly names of the passed device name to help deciding which device should be used.