Here you can download the raw data in SMARD and the estimated impulse reponses between all loudspeaker-microphone pairs. The raw data and estimated impulse responses are arranged according to the 48 configurations which can be downloaded as zip-archives below (approx. 320-400 MB each for the raw data and approx. 3-4 MB for the estimated impulse responses). A zip archive for the raw data contains the following files.
- The recorded microphone signals from each channel for each audio segment.
- Loopback recordings of the loudspeaker source signal.
- Recordings from the dummy microphone.
- A sketch of the configuration.
- A txt-file with the setup.
- A mat-file (in HDF5 format) containing all the configurations.
All the audio recordings were made with a sampling frequency of 48 kHz and stored in the flac-format. A zip archive for the estimated impulse responses contains the
- Wav-files containing the estimated impulse responses. The estimates are computed from the exponential sine sweep.
- A sketch of the configuration.
- A txt-file with the setup.
- A mat-file (in HDF5 format) containing all the configurations.
The configuration number is a four digit number of the form ABCD where
- the first and most significant digit A denotes the type of loudspeaker,
- the second digit B denotes the position and orientation of the loudspeaker,
- the third digit C denotes the type(s) of microphone arrays, and
- the least significant digit D denotes the position and orientations of these arrays.
You can read more about the different configurations in the description of SMARD.
The configurations below are arranged in 16 rows and 3 columns where each column corresponds to the recordings for one particular loudspeaker. Above each row, a sketch of the loudspeaker and microphones are shown within the room. In the sketch, a loudspeaker is marked by a blue star, a microphone is marked by a red cross, and the dummy microphone is marked by a black circle. The exact coordinates of the loudspeakers and microphones can be seen in the setup files below.
If you are a MATLAB user, the data from a single configuration can be loaded into the MATLAB workspace by using the loadSmarData function. The function loads the recorded data and the configuration into a struct.
As detailed on the equipment page, the recordings were made in MATLAB. The code for making these recordings and for estimating the impulse responses can also be downloaded.
