Forum Rule: Always post complete source code & details to reproduce any issue!

Search:

Type: Posts; User: UHF

Page 1 of 3 1 2 3

Search: Search took 0.00 seconds.

  1. Replies
    10
    Views
    2,930

    Ok, I'm asking because I tried the code in #6...

    Ok, I'm asking because I tried the code in #6 expecting to see the free RAM size change when called during execution, but it stays the same value. I think I'm misunderstanding something. I was hoping...
  2. Replies
    10
    Views
    2,930

    Is there a way to see RAM usage during program...

    Is there a way to see RAM usage during program execution, in the similar way as repeatedly calling AudioProcessorUsage()? Thanks.
  3. Replies
    12
    Views
    763

    It seems intermittent. I can't see a pattern....

    It seems intermittent. I can't see a pattern. When Decay level is set to minimum (1ms) and Sustain to zero, I also get a high-pitched artifact too.
    Someone else needs to test. Here's a sound file...
  4. Yes it does.

    Yes it does.
  5. Replies
    12
    Views
    763

    Yes, but it could be a similar problem. Just a...

    Yes, but it could be a similar problem. Just a thought.
  6. Replies
    12
    Views
    763

    I'm using AudioSynthWaveformDc for portamento but...

    I'm using AudioSynthWaveformDc for portamento but an exponential response instead of a linear one, that mimics capacitor charge/discharge would be preferable.
  7. Replies
    12
    Views
    763

    It would be great to add this to the...

    It would be great to add this to the AudioSynthWaveformDc object too, so that better portamento glides can be made.
  8. Replies
    12
    Views
    763

    It usually varies between 35 and 65%. I don't...

    It usually varies between 35 and 65%. I don't know what you mean by modes. I'll have a further play. It is intermittent as the sample shows.

    WCalvert says in another post It does not have the...
  9. Replies
    12
    Views
    763

    Hello I'm testing it on TSynth using a T4.1....

    Hello I'm testing it on TSynth using a T4.1. Global variable usage on compile has gone from 279828 bytes (53%) to 312596 bytes (59%) just by including the two files. Using it on both the 12 amp...
  10. Replies
    7
    Views
    726

    Hello Emmanuel. Yes, handing voices to in-coming...

    Hello Emmanuel. Yes, handing voices to in-coming notes is something that took me a while to implement on TSynth until I just sat down and wrote a series of operations based on what should happen. It...
  11. Hello, yes probably. If it's the VGND pad where...

    Hello, yes probably. If it's the VGND pad where the jack is soldered, used the VGND pad underneath:

    https://www.pjrc.com/store/teensy4_audio_back.jpg

    You can email the TSynth developer directly...
  12. Hello. Can I ask you to do an experiment and try...

    Hello. Can I ask you to do an experiment and try a 100ohm resistor on the CLK line close to the T4.1?
  13. Replies
    13
    Views
    791

    No, actually having bothered to look at the...

    No, actually having bothered to look at the specifications https://www.midi.org/specifications/midi-transports-specifications/5-pin-din-electrical-specs, I see that pin 2 of MIDI in can be grounded...
  14. Replies
    27
    Views
    1,145

    That'll be me then. Yes the beep sounds familiar...

    That'll be me then. Yes the beep sounds familiar from a while back. Running out of RAM possibly? I don't think it's a hardware problem. When you compile, does it state how much memory global...
  15. Replies
    4
    Views
    1,610

    Really very nice engineering all round. The NDLR...

    Really very nice engineering all round. The NDLR is similarly a first class product and well received - that was developed with a Teensy LC?
  16. Replies
    13
    Views
    791

    Hello, I thought I would weigh-in, since I've...

    Hello, I thought I would weigh-in, since I've been looking at MIDI IN/Out/Thru recently. I think a buffer between the MIDI In and Out/Thru with an enable is all that is needed and simpler. I think a...
  17. Replies
    3
    Views
    430

    Use the latest V2.03 version of the firmware and...

    Use the latest V2.03 version of the firmware and NOTHING else. Also please email the developer of TSynth directly, who'll be delighted to help over email.
  18. Replies
    4
    Views
    381

    You could use one of these MPR121 I2C breakouts:...

    You could use one of these MPR121 I2C breakouts: https://www.adafruit.com/product/1982

    Cheaper copies are available...
  19. Replies
    142
    Views
    14,621

    Hello. Very nice presets. It would be great if...

    Hello. Very nice presets. It would be great if you made the code open source, so I can take the oscilloscope code, if and when you improve it. Presets #24 and #58 were designed to be held, by the...
  20. Replies
    6
    Views
    577

    Hello, if it sounds like a digital noise, is it...

    Hello, if it sounds like a digital noise, is it from the code? Does the noise appear on USB digital audio output if you add a USBAudio object and compile with Audio?
  21. Replies
    8
    Views
    700

    Hello, how are you sending MIDI to the Teensy?...

    Hello, how are you sending MIDI to the Teensy? 6N138 based circuits work fine, do you have the circuit diagram that you used?
  22. This is really nice work and forms a very usable...

    This is really nice work and forms a very usable all-in-one instrument. You mentioned effects, will the delay sync to the tempo with divisions (1/4, 1/8, 1/16...)?
  23. Replies
    9
    Views
    832

    Ok, that makes sense. Thanks very much for your...

    Ok, that makes sense. Thanks very much for your time.
  24. Replies
    9
    Views
    832

    Hello, the code is available here if anyone wants...

    Hello, the code is available here if anyone wants to take investigation further: https://github.com/ElectroTechnique/TSynth-Teensy4.1/tree/master/TSynth. I'm not using PROGMEM on the declaration...
  25. Replies
    9
    Views
    832

    Yes, I've got more PROGMEMs. Adding another in...

    Yes, I've got more PROGMEMs. Adding another in Detune.h caused it. No PROGMEM on functions but I've got FLASHMEM on a number of functions in several files. Trying to allow more memory!
  26. Replies
    9
    Views
    832

    section type conflict

    Hello I'm getting a section type conflict error when I compile on T4.1 : VELOCITY causes a section type conflict with CHORD_DETUNE_STR


    If I add another declaration marked PROGMEM in one file, I...
  27. Replies
    3
    Views
    461

    Here but requires some work:...

    Here but requires some work: https://forum.pjrc.com/threads/60470-Teensy-4-0-Audio-Library-screen-oscilloscope
  28. Replies
    3
    Views
    461

    Code for oscilloscope audio display wanted

    Sorry delete - I've found what I wanted.
  29. Replies
    8
    Views
    726

    Any demo? I'll show you mine if you show me...

    Any demo? I'll show you mine if you show me yours..?
  30. Replies
    8
    Views
    726

    Hello, looks very intriguing. Any more details?...

    Hello, looks very intriguing. Any more details? Can you play anything you like on it or is it limited only to the hits of Justin Bieber? (I've never listened to him by the way.) Are you outputting...
  31. Replies
    14
    Views
    900

    If you remove it from the prototype board does it...

    If you remove it from the prototype board does it work?
  32. Replies
    0
    Views
    234

    Compiling overclocked firmware problems

    Hello! Some of my users have had problems with firmware I've provided :(, on their newly built TSynths :cool:, despite it working fine on mine :confused:. They were getting noise, not of a synth...
  33. Hard sync! Great, I'll have play.

    Hard sync! Great, I'll have play.
  34. Replies
    5
    Views
    867

    A pair of 4 inch long wires with du Pont...

    A pair of 4 inch long wires with du Pont connectors work fine too apparently. This is what one of the buyers of TSynth used to connect to the PCB.
    21239
  35. Replies
    2
    Views
    403

    You need to give us access. Can you post a PDF...

    You need to give us access. Can you post a PDF instead?
  36. Beautiful! Thanks...

    Beautiful! Thanks...
  37. Hello Mark. Square and sawtooth are great, the...

    Hello Mark. Square and sawtooth are great, the pulse wave is fine until there's any sort of modulation, even around 0.5Hz. There's digital noise that isn't regular but often. Can it be improved? Many...
  38. Thanks for the replies and ideas. I'll start...

    Thanks for the replies and ideas. I'll start looking into optimising memory next.

    By the way, I've taken the delays out of the Mux ADC reading code. Before, I needed a varying amount of time to...
  39. Replies
    2
    Views
    401

    It's odd that you are asking about the DC...

    It's odd that you are asking about the DC resistance. This is usually low around 1ohm and not really a significant factor (unless you're dealing with significant currents). You know that 600 and 120...
  40. Hello, again. I knew you were all on the edge of...

    Hello, again. I knew you were all on the edge of your seats, reloading the page every five minutes to see if there was any update or solution to this :rolleyes:

    I suspected that it might be a...
  41. Replies
    7
    Views
    612

    Hello, this is of no help, but I've not noticed...

    Hello, this is of no help, but I've not noticed particular problems with the Audio Lib in TD1.53 and I'm using about 260 audio objects and 546 patchcords. Can I suggest you create the waveform...
  42. T4.1 Interrupts(?), analogRead, usbMIDI problems

    Hello, sorry if any of this is vague. I can't immediately post all the code to demonstrate this as there is a lot that would need cutting down - I'm just looking for ideas of what the problem(s) may...
  43. Replies
    13
    Views
    935

    Yes, GND as one would expect.

    Yes, GND as one would expect.
  44. Replies
    13
    Views
    935

    There is nothing wrong with the encoders you've...

    There is nothing wrong with the encoders you've bought (commonly available Keyes KY-040). They have pull-up resistors attached (pull-up to +V) which aren't needed but won't have any detrimental...
  45. Great! I'll test. Yes, I was reminded of...

    Great! I'll test. Yes, I was reminded of Walter/Wendy Carlos and Clockwork Orange while listening to it...
  46. Replies
    13
    Views
    935

    Have you de-bounced the push buttons (including...

    Have you de-bounced the push buttons (including on the encoders)? Also what code are you using for the encoders (the link in video wants cash to see the code)? Your saying that if you turn one...
  47. Yes, triangles sound fine. The variable triangle...

    Yes, triangles sound fine. The variable triangle wave can be varied to a sawtooth and reverse sawtooth, I imagine trying to band-limit at just those points is a pain. The square and sawtooth are a...
  48. Ok! That's solved the distortion. The problem...

    Ok! That's solved the distortion. The problem with the locking-up is I think, because of me over-stretching the T3.6 (CPU maxes at 141:confused:), T4.1 seems fine. I'll carry on testing, I'm...
  49. Try the PlaySynthMusic example...

    Try the PlaySynthMusic example (Audio-->Synthesis-->PlaySynthMusic) with the waveforms all set to WAVEFORM_BANDLIMIT_SQUARE:


    // allocate a wave type to each channel.
    // The types used and their...
  50. I'm testing the code at the moment and it sounds...

    I'm testing the code at the moment and it sounds fine until I change the frequency while notes play, using waveform.frequency(XXX); The sound becomes distorted and I also get complete lock-ups with...
Results 1 to 50 of 133
Page 1 of 3 1 2 3