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Type: Posts; User: Baloran

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    You can express the coefficients of each table...

    You can express the coefficients of each table integers.

    example:

    coef 1 for table 1 = float 1.3 = 1.3 * 1024
    coef 2 for table 2 = float 0.7 = 0.7 * 1024

    resul = ( sample_from_table_1 *...
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    Hi vehtoh, PCM5102X -> TEENSY 4.1 (TSSOP20) ...

    Hi vehtoh,

    PCM5102X -> TEENSY 4.1
    (TSSOP20)

    LRCK (15) -> (20/A6) LRCLK1
    DIN (14) -> (7/RX2) OUT1A
    BCK (13) -> (21/A7) BCLK1
    SCK (12) -> GND
  3. I will try to build large wave tables for my...

    I will try to build large wave tables for my tests. I'm watching some SF2 from Mellotron with greed :D I'll keep you informed of the results.
    No, I don't propose to modify the wavetables, just that...
  4. I only tested with flute_100K but I make no...

    I only tested with flute_100K but I make no difference between EXTMEM and PROGMEM. The goal is still for me to make a memory dump on SD of a collection of PROGMEMs so that the user can select them...
  5. Thanks RABB17 I have made a test with transfert...

    Thanks RABB17
    I have made a test with transfert from PROGMEM to PSRAM. It's work fine with AUDIO_SAMPLE_RATE_EXACT 88200.0f en CPU% and timming is low....



    // Just for test ;)
    EXTMEM...
  6. Merci ;) My idea is a bit different because I'm...

    Merci ;)
    My idea is a bit different because I'm thinking of making an intermediate appl in which I compile several soundfonts and which will save them as "RAW" data (structure and audio) on SD to...
  7. WaveTable audio Datas and structures on SD ?

    Hi All,

    Would it be completely silly and/or infeasible to transfer the audio and structure data of a wavetable set to an SD . These files could be loaded on demand by the user to the and...
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    Teensy 4.1 and DAC PCM5102a.

    Good evening to all

    I'm working on the superb teensy 4.1 with a DAC PCM5102a. Everything is going very well.
    I must be dreaming, I modified in the core/teensy4/AudioStream.h file the value of...
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    Tested and no. If block of datas was shorter,...

    Tested and no. If block of datas was shorter, possible but yet not tested ;)
    3 bytes are the size of data queuing in a midi over usb message 0x04 or 0x07, this 3 bytes have gived me the direction...
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    Finally, the midiUSB flush line in void usb_isr...

    Finally, the midiUSB flush line in void usb_isr (void) is important because it seems to autoflush unreleased outgoing data.

    So I modified usb_midi.c to add a flag to block flush when transmit...
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    Well, I'm on the track ... :p In usb_dev.c,...

    Well, I'm on the track ... :p

    In usb_dev.c, procedure



    void usb_isr (void)
    {
    ....
    if ((status & USB_ISTAT_SOFTOK / * 04 * /)) {
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    Yes, like this...303 , 83 , 331, 291 and 11 are...

    Yes, like this...303 , 83 , 331, 291 and 11 are acceptable. All other are printing. All bloc data pass to usbMIDI.sendSysEx are valid.

    For testing, I also disabled the interrupts of the 3 serials...
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    Thanks, CODE insert ;) delay is at the end of...

    Thanks, CODE insert ;)

    delay is at the end of dataSysSend . I have tried 10, 20 .... 200 ms ;)
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    Problem with large volumes of data on usbMidi

    Hello everyone

    First of all, thanks to Paul for his work, his support and the dynamism of the Teensy range;) and sorry for my very rough English and assisted by the translation tools.

    I'm...
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