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  1. Yes, FastTouch works on Teensy 4 and very fast,...

    Yes, FastTouch works on Teensy 4 and very fast, can read all pins within 1 ms ........ and no resistors just pads single wired to the pins
  2. Probably means a simple solution to give 4 touch...

    Probably means a simple solution to give 4 touch pads.
    With the capacitive sensor sketch only 4 resistors are required, it should be easy to test if they are fast enough.
    some of the other external...
  3. Why not try the Capacitive Sensor sketch in the...

    Why not try the Capacitive Sensor sketch in the Library.
    Copy pasted below.......an it works in Teensy 4 as it is gives 3 touch pads.
    If more pads needed just add more resistors........and it is...
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    Maybe or maybe not, I misunderstood the earlier...

    Maybe or maybe not, I misunderstood the earlier posts. I thought the problem was the switching or starting and stopping the actual waveforms and how clicks or large gaps appear in the sound output....
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    If you are playing a midi keyboard....it is...

    If you are playing a midi keyboard....it is sending out the note on and note off to teensy I assume...I assume teensy is the synthesiser. your code will need to be setup to receive these and will...
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    Try to isolate the problem as to what part is...

    Try to isolate the problem as to what part is causing it. Your wave diagrams show very large gaps...there could be delays elsewhere and not in teensy.
    This sketch will let you see how fast teensy on...
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    when I try the Delay sketch with or without the...

    when I try the Delay sketch with or without the re-config lines for pin3 and pin4 teensy continues to send audio out over i2s pin22 and 23 to the shield.
    audio ony stops if I put a .... int val =...
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    I have Teensy 3.2 plugged into the Audio Shield...

    I have Teensy 3.2 plugged into the Audio Shield using I2S pins 22 and 23. When I run the Delay example sketch audio goes to the shield via I2S on pins 22,23,9,and 11 and I hear the audio from the...
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    Yes, that works, so dont need to edit library...

    Yes, that works, so dont need to edit library file.....Thanks
    I added the lines in the Setup, ....That setting will be used for that sketch and wont be changed as it runs....???
    So what...
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    Editing lines of code in a Library file

    When I use Teensy 3.2 with the Audio board I use the standard config so Teensy just plugs into the board using the standard pins as in the datasheet.
    Pins 22 and 23 are I2S pins for the audio...
  11. Hi Minch.....Just noticed you have...

    Hi Minch.....Just noticed you have AudioMemory(850); .....Probably far too big a number......try AudioMemory(50); instead.
    I dont have a i2s source setup as input so cannot try it out now without...
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    I have reset some of the settings relating active...

    I have reset some of the settings relating active content in Internet explorer 11 and it works OK now in explorer.
    I have reset Google chrome browser back to defaults and it works OK now in Google....
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    Yes, thats it, Thanks. I can run it with Internet...

    Yes, thats it, Thanks. I can run it with Internet Explorer but it warns me it has blocked running scripts and ActiveX, but gives me a button on the screen to allow it.... so it works. Haven't figured...
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    Problem with GUI Audio Design Tool

    Something has happened with my Audio Design Tool installed in Arduino 1.8.8 and Teensyduino 1.45
    All was working OK for weeks or months until recently, then it started to behave as shown in the jpg...
  15. Robin_B you say in your 1st post......"Perhaps an...

    Robin_B you say in your 1st post......"Perhaps an I2S amplifier board? FWIW, I'm driving a 3W (mono) speaker."
    Then why not use the....."Adafruit I2S 3W Class D Amplifier Breakout using MAX98357A"...
  16. Colorado.... "My instrument has both MIDI and...

    Colorado....
    "My instrument has both MIDI and audio out functionality." ..... If your instrument has both MIDI out and audio out then your instrument MIDI out if plugged to MIDI IN on your PC should...
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    Tried on Windows XP and clicking is still there....

    Tried on Windows XP and clicking is still there. Plays about 6 seconds clear and then clicking starts.
    I am replacing my windows XP so for me not worth pursuing this XP problem any further. ...
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    Yes, works on Linux Lubuntu 18.04 and windows 10...

    Yes, works on Linux Lubuntu 18.04 and windows 10 on Pentium. Both behave similar.
    Tested with setI2S_freq at ..... 44000, 44100, 44112 and all worked no clicks. Tested at 44116 for both and...
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    This works perfectly now that the #ifdefs are...

    This works perfectly now that the #ifdefs are added...........
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    Yes tried this....return len*4 .......still get...

    Yes tried this....return len*4 .......still get clicks
    on win 10 pentium and on Linux Lubuntu
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    Tried the workaround in my Lubuntu 18.04 linux. ...

    Tried the workaround in my Lubuntu 18.04 linux. Get clicks, different from thee original louder and more consistant that in the WinXP. Clicks start from the beginning of record.
    I recorded over 1...
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    Thanks for still trying......I tried your...

    Thanks for still trying......I tried your workaround on teensy3.2 and teensy3.6. on old WinXP. Tried both "click to Monitor" in Audacity and recording and playback in Audacity.
    Not getting the...
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    I dont understand........are all the posts not...

    I dont understand........are all the posts not available to everybody on this forum....?????

    Post .... #56 ..... has 3 recordings

    Post .... #54 ..... has 1 recording

    There are 2 other...
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    Yes, I have tried again on Lubuntu laptop and on...

    Yes, I have tried again on Lubuntu laptop and on XP desktop and win 10 laptop and clicking is still there. If I compile on one and play on another, still clicks.

    I listened to the 1000 Hz and...
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    Paul, thanks for the info......well thats that...

    Paul, thanks for the info......well thats that then......I suppose I should have read the small print somewhere and known this myself. I just thought as teensy was generating the audio and needed...
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    Paul...... I tried again following you test...

    Paul...... I tried again following you test procedure on Lubuntu 18.04 and still get the faint clicks. I have attached screen dumps and an audio wav recording.
    I am not sure that your test with the...
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    Paul....... I assume in your quick listening test...

    Paul....... I assume in your quick listening test you Powered Teensy separately by 5V line and plugged USN audio adaptor in to the USB port on Teensy board and listened to audio from the speakers via...
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    Thanks Paul for the tests. Your #45 test is...

    Thanks Paul for the tests.
    Your #45 test is exactly they type of test I have been doing....as per in my #14.....Its long past bed time here so I will try again tomorrow and post again
    Your #46 test...
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    Thanks for all the replies, I started this thread...

    Thanks for all the replies, I started this thread probably a week ago, I was away for a few days and now I am back and see we seem to be going around in circles with more complicated sketches. which...
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    More investigations on the Linux Lubuntu 18.04...

    More investigations on the Linux Lubuntu 18.04 laptop.

    Put Audacity 2.2.1 on it and it recorded and played really bad breakup of audio. Discovered in EDIT, PREFERENCES, RECORDING ther are 2 tick...
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    Thanks Theremingenieur. I dont think I am doing...

    Thanks Theremingenieur. I dont think I am doing parallel listening and recording, but maybe with audacity it depends on how it is setup. I simply record from the USB as input and then Play it back...
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    Yes that is the type of test I am doing, the most...

    Yes that is the type of test I am doing, the most basic, Record from USB in Audacity and play it back. Do this on both old XP and the Win10 with same results.
    The win 10 sound gives me extra options...
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    No I haven't tried a "true" USB Audio device...

    No I haven't tried a "true" USB Audio device because I haven't got onr and have been Googling and searching the shops and cannot find any, or at least any where the spec. say it takes USB Audio. Most...
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    Thanks Theremingenier, I actually see that...

    Thanks Theremingenier, I actually see that mentioned in the GUI documentation, but I didn't know what it meant. Yes, that gets USB working consistently, but what about the clicks, I still get the...
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    I tried compiling and uploading from a windows 10...

    I tried compiling and uploading from a windows 10 PC..... just same problem....... compilesuploads OK, but still clicks in Audio although otherwise sounds good and looks good in Audacity.

    I...
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    I compiled and uploaded the sketch on a windows...

    I compiled and uploaded the sketch on a windows XP (I know it is old and needs replaced) but it compiles OK, tried latest Arduino 1.8.7 and teensy 1.44 and also 1.8.5

    I don't have any standalone...
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    USB Audio Clicking Noise

    I am using USB Audio out from teensy 3.2 to PC USB port for playing or recording on the PC.

    The Audio all plays with good sound except a low level click about 4 or 5 times per second ..... This is...
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    Too much like an engineering solution, Go to the...

    Too much like an engineering solution, Go to the cobblers that mends shoes and fixes leather goods, get some metal eyelets like used for laced shoes, put a row around the rim, there is a tool for...
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    Why do you want it working through the felt on...

    Why do you want it working through the felt on the hat..??...what is wrong with a few metal buttons or studs.....it will work with that for the most basic of sketches using the existing...
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    My original idea of the simple basic sketch was...

    My original idea of the simple basic sketch was to simplify it, and output audio to DAC and USB at same time. DAC is the most simple and direct from teensy.
    In order to hear DAC all that is needed...
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    You need to decide and explain what you are...

    You need to decide and explain what you are trying to do.
    I thought you were trying to copy the hat idea with some mods. touching it in different places on the hat made the eye blink or roll or...
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    I didn't try your code....but briefly looked...

    I didn't try your code....but briefly looked through it ....and ...????

    Looks like you have 4 conditions, lookRight, LookLeft, Spiral and Blink.
    I assume each controlled by a separate touch...
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    This basic code will let you hear audio form dac...

    This basic code will let you hear audio form dac and also L&R USB
    how are you listening to USB sound.....you might need to setup you PC to use the USB device for Audio instead of linein or mic etc...
  44. Just to clearup my earlier post..........Paul's...

    Just to clearup my earlier post..........Paul's new Decoder works OK on Lubuntu 18.04 and Python3.6......use ..... pip3 install sf2utils .... to install the utilities
    and ...... python3...
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    I have always used touch without connected to a...

    I have always used touch without connected to a specific ground. Battery powered isolated on a desktop, teensy 3.2, all 12 working, touch pads 5 mm dia, touch any pad and it works using code like...
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    Even with the java hogging it all seems to work,...

    Even with the java hogging it all seems to work, just have to close the IDE each time to clear it.......on a side issue.....Yes XP....needs upgraded....I was considering upgrading to an all in one pc...
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    Got the wavetables sketches working on 1.8.7 /...

    Got the wavetables sketches working on 1.8.7 / 1.44 OK with the new PJRC SoundfontDecoder but still have the problem with the javaw.exe hogging cpu and memory until the IDE is closed each time after...
  48. Yes, got it to work, on a Win10,...

    Yes, got it to work, on a Win10, python3.6.6.....my lubuntu setup just needs sorted sometime, thanks
  49. thanks for the decoder. assume it needs to be run...

    thanks for the decoder. assume it needs to be run on python 3.6. tried on laptop with Lubuntu 18.04 which has Python 3.6 included, so ran the sf2utils install and then tried to run the decoder but...
  50. I must have been posting at the same time as your...

    I must have been posting at the same time as your post...just see it now.

    We may have come across the same problem.....my post was about the output from the windows pre compiles sf2 decoder.exe...
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