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  1. VS1053 Adafruit library 'player_simple' example doesn't compile for Teensy 4.1

    I'm trying to use the Adafruit_VS1053 library which is included with Teensyduino 1.56 on a Teensy 4.1. Unfortunately, the player_simple example does not compile, returning these errors:

    ...
  2. Compressed audio length, playback position, and seek

    For context: I am building an SD card audio player using a Teensy 4.1, sending audio over I2S to a PCM5102. I have been using Frank B's fantastic Audio Codec library to play MP3 and M4A files.
    ...
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    Unfortunately MusicBee won't handle non-standard...

    Unfortunately MusicBee won't handle non-standard tags for AAC files so that puts paid to that idea, even if it is possible to shoe-horn ID3 tags into them:...
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    Yes it seems like ID3V2.4 is the update nobody...

    Yes it seems like ID3V2.4 is the update nobody really asked for.


    This is what I'm finding too... Great call on using *.aac instead - I'm syncing files using MusicBee so hopefully I can get some...
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    Absolutely correct, it works like a charm now! ...

    Absolutely correct, it works like a charm now!

    #include <SD.h>
    #define SDCARD_CS_PIN BUILTIN_SDCARD

    SdFat sd;
    SdFile dir;
    File file;

    #include "SPI.h"
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    You're a legend, thank you very much! We're...

    You're a legend, thank you very much! We're definitely getting close. It works perfectly for the file that I was using to test, however it's not consistent with other files.

    This is pretty much...
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    That would be amazing if you have a spare moment,...

    That would be amazing if you have a spare moment, thank you!
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    Perfect, all compiles with no issues! The...

    Perfect, all compiles with no issues!

    The next problem is actually retrieving the frame data. I've added some more debug Serial.prints and the whole thing appears to run all the way through....
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    That makes sense! I've crowbarred the whole...

    That makes sense!

    I've crowbarred the whole thing into an Arduino sketch by replacing all functions that the IDE didn't like (mostly log_ functions). The only thing I couldn't seem to replace is...
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    Yes, for a couple of decades now I think! But it...

    Yes, for a couple of decades now I think! But it seems to be easier to parse due to its tighter structure, so I've found a few projects that read V1 but not V2.

    I was confused by this which, on...
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    Wow that's a lot, thank you! Certainly a way...

    Wow that's a lot, thank you! Certainly a way above my current knowledge level but I'll take some time to decipher it.

    Is this for ID3 V2 as well, or just V1?
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    Read ID3 tags from audio files

    I would like to read ID3 tags from audio files stored on an SD card, using a Teensy 4.1.

    My first go to is to try and find a handy library, but so far I've had no joy there. The ID3 official...
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    Future audio file format support?

    Are there plans to support more than WAV files in the stock Audio library sometime soon?

    Personally I'm particularly interested in MP3 and AAC. I've been using Frank B's fantastic Audio codec...
  14. It's really down to the individual plugin. You...

    It's really down to the individual plugin. You might have some luck with the stock plugins in your DAW.


    It may be possible to manually map MIDI to and from plugin parameters in Ableton or FL...
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    Update: in clearing down my breadboard and...

    Update: in clearing down my breadboard and rewiring just the DAC to take a good photo of the setup, the DAC appears to now be stable again. (Perhaps leaving it to sleep overnight and think about its...
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    I saw that advice too. Unfortunately no dice with...

    I saw that advice too. Unfortunately no dice with this configuration either.
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    ...Spoke too soon. It worked for a moment, but...

    ...Spoke too soon. It worked for a moment, but has reverted back to no output. I have tried:

    - 3.3V and 5V for power
    - sending SCK to GND or 23 on my T4.1
    - driving the other pins on the back...
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    Good shout, just gave it a try. Don't remember...

    Good shout, just gave it a try. Don't remember needing 5V before, though, from what I've read around the interwebs, the PCB has a voltage regulator so it's 3.3V and 5V safe.

    It seems to be solved...
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    PCM5012 I2S DAC with Teensy 4.1

    I'm trying to use the PCM5012, a cheap DAC from Aliexpress, for an audio project that's been in development for a while. The PCM5012 has been stable-ish in the past, but now I can't get any audio...
  20. You're not the only one to spot the open nature...

    You're not the only one to spot the open nature of VirtualDJ - I've got a long-term goal to make various DJ controllers using Teensy MIDI and VirtualDJ! Here's a proof of concept I made a few years...
  21. This project was shifted to the back burner for a...

    This project was shifted to the back burner for a couple of weeks, only just a chance to get back to it - apologies for the delayed reply.


    You are absolutely correct, I've fixed that line and...
  22. Modify the contents of a text file on an SD card

    As part of an audio project, I'm attempting modify the contents of text-based files on an SD card (M3U playlists in this case). My initial approach is to copy the contents of the file into a...
  23. You are absolutely correct, I see the same...

    You are absolutely correct, I see the same result. Thank you very much for the clarification!



    This is another good solution that I may use later, thank you!
  24. SdFat_Usage example: datalog.bin output file contains garbage

    I am familiarising myself with using an SD card on a Teensy 4.1, currently investigating reading and writing text to files. The SdFat_Usage example compiles and runs just fine, and appears to be very...
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