Jimmy Lapierre
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C++, C, Javascript, MATLAB, HTML, Assembly
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what do the AudioDeviceWriter do with a complex inputdata?
This object should probably error out for complex values (which is not possible with any audio device). Instead, it looks like i...
alrededor de 1 mes hace | 0
"audioDeviceReader" not accepting device input from list of audio devices
The default audioDeviceReader object is constructed with Driver='DirectSound', so getAudioDevices will return audio devices that...
2 meses hace | 0
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How to reference Linux Alsa devices from Simulink
Hi Pascal, I asked a collegue about this and here's his answer: If the embedded Linux is running on Intel and AMD x86 processor...
4 meses hace | 1
Varying device latency for ASIO Device
This is not the usual behavior for ASIO. Does X-AIR allow you to select the buffer size (samples per frame) ? You should make su...
4 meses hace | 0
How do I output on multiple channels using Audio Device Writer?
Channel mapping 1:2 is fine for playing 2 channels. The error appears to be about the number of columns and I do not think the b...
6 meses hace | 0
Compute acoustic roughness without calibration
Roughness will be slightly under- or over-estimated if the calibration level is off. However, that's not an issue if you care mo...
7 meses hace | 0
Audioread Bug with Opus (maximum value returned exceeding 1)
Hi, I was not able to reproduce peaks of that amplitude when using audiowrite, but I did observe some amplitudes above 1. It mig...
9 meses hace | 0
Is calibrationFactor for psychoacoustics correct?
Hi, can you give more details on what you want to measure? The calibration factor lets you match the level of another calibrated...
10 meses hace | 0
Loudness Equalization Across Stimuli-Within Stimuli
If you want to analyze your sequences to see if loudness is perceived as the same for different frequencies, I'd recommend looki...
10 meses hace | 1
Ability to change audioPlugin reported latency dynamically?
There are some limitations, for example latency cannot be changed during playback is active. But I'm not sure that's the case he...
alrededor de 1 año hace | 0
acousticLoudness() function incorrect?
No need to modify your "signal". You can use calibrateMicrophone with a 1kHz tone that you specify the SPL level, and that will ...
alrededor de 1 año hace | 0
How to detect which audio output device is being used by Windows
The best practice for Audio Toolbox users would be to use WASAPI mode (see audioDeviceWriter). It is WASAPI exclusive mode, so t...
más de 1 año hace | 1
Real-time ANC Simulink model based design simulation
Hi, the easiest way to get started might be to pre-record some audio and replace the noise source with that data. With an audio...
casi 2 años hace | 0
Acoustic Loudness - Is Scaling Required?
Are you using audioIn and FS (the audio signal itself) or SPLin (28 one-third-octave bands between 25 Hz and 12.5 kHz) ? If you...
casi 2 años hace | 1
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Audio generation in Simulink Desktop Real-Time
If you are using the Speedgoat, you would want to use their device-specific output blocks instead of the Audio Device Writer. So...
más de 2 años hace | 0
Simultaneously play and record a signal with audioPlayerRecorder
To specify IN/OUT channels, use channel mapping. For example, to play on channels 1+2, and record on 4: audioPlayerRecorder("Pl...
casi 3 años hace | 0
Error when recording multi-channel audio with loopback
Hi Charlotte, When using the reader and writer at the same time, some settings like frame size must match. Here, fileReader.Sa...
casi 3 años hace | 0
| aceptada
Can I use two unique ASIO audio devices at once?
Unfortunately, Windows does not allow loading multiple ASIO drivers at the same time, so MATLAB cannot do so. You might be able ...
alrededor de 3 años hace | 0
| aceptada
Sound Pressure level returning -inf
Leq, Lpeak and Lmax are only computed every TimeInterval, so they correspond to the SPL of zero for the first 0.125 seconds. And...
alrededor de 3 años hace | 1
| aceptada
how to compute the RMS dB(A) value from an acoustic signal in a spectrum ?
It might just be a matter of scaling. For example, if there is a microphone involved, you may need to calibrate for that if the ...
alrededor de 3 años hace | 0
What is dBFS in the Impulse Response Measurer App?
Hi Yuqing, If you use the Export button, you will get a table of your measurements including the recording. You can get an exc...
alrededor de 3 años hace | 0
| aceptada
Will MATLAB VST plugin generation support ARA (Audio Random Access) API?
There is no support at this time, but users with Coder can use the "juceproject" option to produce a JUCE project, which support...
más de 3 años hace | 1
Real-Time Audio Processing: Varying Delay Depending on Initial Under/Overruns
Some updates since these issues were raised: Starting 21b, Audio Toolbox I/O has a new buffering mechanism to prevent the laten...
más de 3 años hace | 0
audio codec performance measurement DAQ
Hi, I think the Spectrum Analyzer could help. Here is an example: https://www.mathworks.com/help/dsp/ug/spectrum-analyzer-measu...
más de 3 años hace | 0
| aceptada
Only one channel from two-channel Behringer UCA202
1. Try specifying the name of the device as well, in case you are picking up another (mono) device instead of you UCA202. >> a...
más de 3 años hace | 0
Microsoft Visual Studio 2022 set up as default C and C++ compiler in Matlab 2021a
Plugin generation is part of the Audio Toolbox, which does not support MinGW. For plugins: VS 2019 was added to R2019b (appears...
más de 3 años hace | 0
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(solved) Why can't I generate an audio plugin from the StereoWidth example?
I see you found a solution. Just for reference, here is a list of supported compilers for Audio and other toolboxes (there is a ...
más de 3 años hace | 1
audio input that is not recognize by matlab
Hi Fanny, First is to make sure the OS recognized the input devices. If on Windows, check that your devices show up in "Sound s...
más de 3 años hace | 1
| aceptada
Impulse Response Measurer: Amplitude of recorded signal is almost half compared to recording in audacity
Playback level in the impulseResponseMeasurer is controlled by the "Excitation Level (dBFS)" setting in the toolbar. Does settin...
más de 3 años hace | 1
| aceptada
Impulse Response Measurer in audio toolbox
Yes, sound is output on the selected device and channel. If there is a loudspeaker connected to that device, it will play. But i...
más de 3 años hace | 0
