Audio

Discussion of using Bela in audio applications, from musical instruments to effects boxes and more.

High frequency sound (noise) at audio output
- Audio
- I'm using the bela mini for a new piece for saxophone electronics and I'm experiencing an unwanted noise sound at the audio output. I know this could be due to ground issues. ...
18 replies
Audio Acquisition with MEMS microphones
- Audio
- I am developing an acquisition system with as many digital microphones (MEMS) as Bela can hold. The idea is to connect 64 of these MEMS (ICS-52000 TDK) to a 4-data-line-input ...
6 replies
A
Active noise cancellation
- Audio
- Hello guys, I am new to bela and working in a project on active noise cancellation. Basically i have to replicate the work using Bela. Any kind of help is appreciated.
0 replies
J
Reducing noise and hum on Bela Mini
- Audio
- Hello! I am not having big problems with noise but, as I use distortion pedals to process the output of my Bela mini synth, the little noise floor that my Bela Mini generates ...
3 replies
A
Reducing Sampling Rate
- Audio
- I wanted to change the analog sampling rate to 8000 Hz. I found a post regarding this here, which says for changing from 44.1 kHz to 8 kHz; sed -i s/44100/8000/g /root/Bela/co...
3 replies
V
Export Audio file
- AudioAdd to wiki
- Is it possible to export a segment of audio file (after processing on Bela) and save it on my own computer ? say for example, export as wav file
2 replies
D
Csound Chorus "pedal" using Bela Mini
- Audio
- Hey all! Very new and basic Bela mini user here that has taken on a college project using one - with regard to Csound. I have left this impossibly late - but have my college p...
3 replies
N
couldn't create queue
- AudioSolved
- ...blocks. When I try to set a larger block size with the -c "-p 128" flag to the build_pd_hvcc.sh script I get the following: Do you know its cause and what I could do to preven...
17 replies
H
Bela Spectrum Analyser/dB Meter with GUI
- Audio
- Hello, I have a bela with a microphone connected to it. I want to use ideally python to create an audio spectrum analyser SPL meter, along with a dB(A) meter. My goal is to be...
3 replies
R
Audio Expander Capelet sample rate
- AudioSolved
- Hi! I read I can use the expander to have 8 more Input/Output at 22000 4 more In/Out at 44100 https://github.com/BelaPlatform/Bela/wiki/Using-the-Audio-Expander-Capelet https:...
2 replies
J
Streaming very large audiofiles
- Audio
- Hey! I am trying to stream very large (2.7GB) Audiofiles from the SD card. I used the "sample-streamer" example, but I get an error: "Couldn't open file 20241012_000000.WAV : ...
3 replies
R
udpsend~ udpreceive~ on Bela?
- Audio
- Hi there! any chance to compile these mrpeach externals? https://github.com/pd-externals/mrpeach/tree/main/net By the way, I can't find a list of PD objects installed by defau...
6 replies
R
setBfree on Bela?
- Audio
- hi! any chance to use setBfree on a Bela with midi controller and keyboard, and controls on GPIOS?
1 reply
J
Audio input
- Audio
- Hi, I have a project involving a teensy card for synthesis and a Bela as an effects processor for the teensy. Now I have 3 possible ways to send audio from one card to the oth...
23 replies
V
Audio sample rate for Bela and NN
- Audio
- Hi everyone, I am new to using Neural Network with Bela. I have downloaded a set of audio clips with sr = 16000Hz, and I am now pre-processing the data. I want to use tensorfl...
1 reply
V
beep sound
- AudioAdd to wiki
- I am trying to do real-time speech enhancement, first i want to input the speech and do windowing with 50% overlap, fft, then ifft, add up three segments and output the middle...
3 replies
V
Bela CTAG BEAST on BBB as 8i16o Audio Interface
- Audio
- Greetings! Is there any progress on the request to modify the Bela (in this case the CTAG BEAST) as a simple USB Audio Interface? It would be an amazing functionality to be ab...
6 replies
P
write to and read from bela ram for preset retention
- Audio
- Hi, I'm designing a guitar pedal that requires some calibration without a computer being attached. When that calibration is achieved, I'd like to store it say on the SD card s...
7 replies
M
Bela Audio Recorder
- AudioSolved
- Hi all, I’m still relatively new to Bela and still getting familiar with the programming, so I’m learning as I go at the moment. I’m currently trying to record audio from a la...
18 replies
5v analog input to PureData from Arduino
- AudioSolved
- I have an arduino application handling a rotary encoder. In the script, I'm using PWM to output values to pin 7 on the Arduino Mega. I then have Pin 7 and Ground on the Arduin...
6 replies

Audio

Discussion of using Bela in audio applications, from musical instruments to effects boxes and more.

High frequency sound (noise) at audio output

Audio Acquisition with MEMS microphones

Active noise cancellation

Reducing noise and hum on Bela Mini

Reducing Sampling Rate

Export Audio file

Csound Chorus "pedal" using Bela Mini

couldn't create queue

Bela Spectrum Analyser/dB Meter with GUI

Audio Expander Capelet sample rate

Streaming very large audiofiles

udpsend~ udpreceive~ on Bela?

setBfree on Bela?

Audio input

Audio sample rate for Bela and NN

beep sound

Bela CTAG BEAST on BBB as 8i16o Audio Interface

write to and read from bela ram for preset retention

Bela Audio Recorder

5v analog input to PureData from Arduino