audio

  1. D

    Android Question ftp upload/dowload mp3 files

    When I upload files to my FTP server, they are uploaded there "broken". Garbage appears instead of the expected audio track. Is this a problem with the server itself or am I doing something wrong? files are mp3 audio messages that I record using the VoiceRecording library I would be glad for...
  2. D

    Android Question Cross platform chat layout audio messages

    Hello everyone, I am developing a chat that should support audio messages. But I can't imagine how to implement them in this code (seekbar instead of text). I did not find anything similar on the forum, perhaps someone has already implemented such functionality or can help me with advice Used...
  3. S

    B4A Class Class media

    Hi, An easy way to take/record/choose photo/video/audio with this small class (clMedia.bas). No permission needed It uses intents to call default app. 3 constants for media type cPhoto = 0 cVideo=1 cAudio=2 2 constants for origin cNew=0 cChoose=1 1 method to call with 2 parameters (media...
  4. moty22

    Share My Creation Audio Sine Generator

    Sine wave generator for PC, output from the sound card. I used audioTrack lib, thank you @stevel05, https://www.b4x.com/android/forum/threads/jaudiotrack.37973/#content The code writes repeatedly an array of 36 samples of a sine wave to the sound card. The frequency is determent by the...
  5. rleiman

    Android Question [Solved} - Fighting back against Samsung's battery management?

    Greetings, I'm using an unusual title to this thread because we are having a problem with Samsung S10 devices running Android 11. We are not sure if the problem is with Samsung or Android 11 or a combination of both, but it's causing many of our customers to complain that audio on existing...
  6. moty22

    Share My Creation SD Sound Recorder

    A sound recorder and playback for Arduino Uno or Nano with ATMEGA328P device using SD card. The card is initialized by the rSD lib and then the code reset the ATMEGA SPI to the code settings. The code uses commands for multi sector reading and writing that don't exist in the rSD library. The...
  7. S

    Share My Creation Folder based Music and Video Player

    Because I dont find an easy to use Folderplayer in the GooglePlayStore I have written my own. You can see and download the Player at https://play.google.com/store/apps/details?id=de.cleanMusikSD.com&hl=en_US&gl=US The main functions are: ► Play audio and video files ► folder structure ► Sort...
  8. K

    B4J Tutorial Karplus-Strong algorithm to synth a plucked guitar string sound

    Not a tutorial exactly but a fast prototyping for basic Karplus-Strong algorithm realized by B4J and would like to share with someone who is interested. I want to make my GuitarRhythm app using synth guitar sound as an option along with sampled guitar sound so I found this: "The Karplus-Strong...
  9. Guenter Becker

    B4A Library BeeperDeLuxe

    Version: 1.0 ------------------------ BeeperDeLuxe is a B4A Lib. Features: sound a beep tone vibrate the phone sound and vibrate sound intermitting alarmtone Properties: DurationMillisecond: the duration of the sound, vibration or alarm. To use you need to implement libs as followes: core...
  10. K

    Share My Creation Guitar Rhythm

    I would like to share a prototype of my first B4A app GuitarRhythm and I would appreciate very much if you are interested to try and leave suggestions. The idea is to arrange bars with chords and rhythm patterns to play with as a background accompanying tool or to test chord progression. I knew...
  11. moty22

    Share My Creation Doorbell using I2C EEPROM

    A doorbell for Arduino Uno or Nano interfacing EEPROM with I2C. The EEPROM 24C512 is 512Kbits and it can store up to 3 seconds wave file of 22.050KHz, 8 bits, mono. The Arduino reads the ROM bytes in a sequential read mode and stream each byte to the PWM generator at a rate of 22 KHz. The I2C...
  12. moty22

    Share My Creation Microphone oscilloscope

    Low frequency oscilloscope. The bandwidth is about 30 to 5000 Hz, the narrow bandwidth and input filter makes the use limited. The mic ADC sends packets of 2048 bytes and 60 bytes are used to draw the trace. Input is to the microphone socket. Input voltage divider allows signals of 5V P-P...
  13. pauleffect

    Android Question [USB AUDIO CLASS]

    Hello. I have a usb headset (mic + headphones). I'd like to use the usb library to connect to the headset directly. Kinda like a USB Sniffer. Is it possible to open a device in shared access mode and see the traffic it generates? I'm interested in "sniffing" the isochronous endpoints.
  14. A

    Android Question take time from a wav file

    I need use the time of wav file to create a sequence of audios. Is there a code that allows me to obtain and use this information?
  15. wonder

    Android Question Splitting audio into timecodes?

    Hi!! I have an mp3 file with multiple sound effects, separated by ~300 milliseconds of silence. How would you guys suggest a way of obtaining the timecodes (in milliseconds) of each sound effect? I wanna end-up with something like this (key names by user input): 'JSON { "Whoosh": {...
  16. Kevin Hartin

    Android Question Using SoundPool to make a sentence

    Hi all, I have been hacking my way through building an app with offline maps, a database of markers and alerts as a marker comes near. It is all working fine as I post an alert to the screen with all the relevant information using ToastMessageShow. What I want to add as an option is a verbal...
  17. P

    WP up&download : Mix voice with images and short movies

    Hi all, I am looking for a skilled B4A and/or B4I developer for a new mobile app for e-learning. Closed, thanks for all answers
  18. Chris160179

    Wish ESP8266 Audio MP3 decoder

    Hello everybody, I found a Project on git hub witch uses the esp8266 to Play / stream mp3 Audio. May be there is some one how translate this Project to a B4r Library:) Thank you https://github.com/espressif/ESP8266_MP3_DECODER
  19. Dave O

    Android Question [solved] AudioStreamer and "not initialized" exceptions

    If you're trying to record audio using AudioStreamer (via the internal Audio library), and you're getting exceptions when you try to start recording ("uninitialized AudioRecord object"), it may be because of permissions - specifically runtime permissions. I downloaded Erel's AudioStreamer...
  20. Mark Baars

    B4J Question Soundpool for B4J

    Hello, I am looking for the functionality of the B4A library "SoundPool", but can't use that in B4J. For B4J I use the MediaPlayer control, but I also want to use speech and short sound effects while playing video and music with MediaPlayer instances. I have tried this with MediaPlayer but the...
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