cpp file as well as a declaration for the structure that holds the metadata. This file contains extern declarations for all of the sample arrays in the. The samples in this file are organized by key range values in ascending order. Following the sample_data structure is all of the sample arrays holding the audio data. This file contains a sample_data structure that contains metadata for each sample that was extracted from the. This sections gives a brief overview of what is found in the output files created by the decoder. This should only be used when making changes to the decoder and debug info is needed. This option is mandatory for proper operation of the decoder and must precede the name of the. There are 2 options available when running the decoder from the command line. By default this directory is the same that the decoder was launched from. h) will be in the output directory and will be named after the selected instrument. Exiting Program.įollowing step 6 the decoded sample files (. Selected samples for instrument decoded successfully. Step 6: Once samples have been selected choose more or save and exit. Step 5: Select samples to decode by entering their number. Export All SamplesĪlternatively, the option to decode all samples could be chosen and a confirmation message would be displayed before exiting the decoder. Step 4: Choose to select samples to decode. Step 3: Enter the number corresponding to the instrument to select samples from 1. Step 2: Select option to bring up instrument list for.
#SF2 FILES HOW TO#
The following shows how to start the decoder with a file Example.sf2 python3 decoder.py -i Soundfonts/Example.sf2 sf2 file, selecting a sample and decoding it from the command line. This section gives a basic walk through of starting the decoder, loading an. By default this directory is the same that the decoder was launched from.Ĥ-0 Using the Decoder from the Command Line (bottom right)Īt this point the decoded sample files (. Note: The confirmation message is displayed in the status bar. sf2 file, selecting a sample and decoding it with the GUI. This section gives a basic walk through of loading a. Status Bar: The current status of the decoder is displayed here.The Teensy usage % is only an estimate of the actual usage and results may vary. Sample Stats: As samples are selected/deselected this window displays quantity, size and Teensy usage information.Decode Button: Once the desired samples have been selected in the samples window clicking this button will decode the samples.A sample is selected when it’s highlighted This window also displays a confirmation message and list of decoded samples when samples have been successfully decoded. In this window multiple samples can be selected/deselected by holding ctrl and clicking on each one.
Once a file is selected the file path will is displayed here as well. Load a SoundFont: Browse for a file with an.The output files for both options is the same. The size selected will affect the Teensy % usage estimate given when selecting samples. Select Teensy Version: Select the current version of the Teensy that is being decoded for.The following section covers what each component of the GUI does.
#SF2 FILES INSTALL#
To install sf2utils you can use the following command: pip install sf2utilsįurther installation instructions and information about sf2utils can be found at: The sf2utils library is also required for the decoder to operate. Information about installing Python can be found at:
Python 3.6 is required for the decoder to operate properly. More information about the Teensy 3.2 and 3.6 can be found at: More information about the AudioSynthWavetable library can be found at: The decoder described in this document is meant to take SF2 files and translate them into a format that can be used with the AudioSynthWavetable library for use on the Teensy 3.2 and 3.6. This document is a user guide for the SF2 decoder created for the Wavetable Synthesis Capstone project at Portland State, Fall 2016 - Winter 2017.
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