Hello, I’d like to know if other customers have experienced the same problems that I did. I got a bunch of samples normalized (at -1db with audible ) on my wav trigger board. They are launched with I2C protocol from an Arduino mega. Some samples are played with a high volume and some very low. it’s hard to understand why some are played good and some bad. It doesn’t come from my coding for sure . I noticed that simple wave shapes are played low but not sure of that. I tried to normalize with audacity but it doesn’t solve the problem. I’ve inverted the names of the samples, it comes from the wave files themselves. I will continue to investigate this but if anyone has a clue, I’d like to know. Thanks
Unless there’s something wacky with your config file, or WAV files it’s got to be your code.
How are you controlling the board via I2C? I only see a serial bus on it.
As YellowDog pointed out, there is no I2C interface on the WAV Trigger, so either you’re using a different product or you’re using the serial connection.
In any event, I did want to share an observation about using certain portable speakers. I have a Fugoo Bluetooth speaker that has an direct stereo line input. This speaker evidently has some built-in stereo widening DSP that does weird things to centered or mono audio content. I too was puzzled when I was using the speaker to test some stereo/mono output and the levels were all over the map. In particular, mono played via the stereo connection was severely attenuated. I stopped using this speaker for anything other than casual entertainment listening, since it was useless as a reference speaker.
Hello, thanks for your answer. Agree with you. It's not I2C but still a serial communication. I might have an answer to my own question. I've noticed that the volume of all my samples are ok with the headphone connected but if I use the headphone exit to connect a soundboard I got the problem, I guess it's a question of impedance. What do you think ?robertsonics:
As YellowDog pointed out, there is no I2C interface on the WAV Trigger, so either you’re using a different product or you’re using the serial connection.In any event, I did want to share an observation about using certain portable speakers. I have a Fugoo Bluetooth speaker that has an direct stereo line input. This speaker evidently has some built-in stereo widening DSP that does weird things to centered or mono audio content. I too was puzzled when I was using the speaker to test some stereo/mono output and the levels were all over the map. In particular, mono played via the stereo connection was severely attenuated. I stopped using this speaker for anything other than casual entertainment listening, since it was useless as a reference speaker.
Is the input on the soundboard stereo or mono? Is the connector that you plug in to the wav trigger TS or TRS? I have run into trouble before plugging stereo outputs into mono inputs; I solved this by combining the stereo outputs before feeding (in my case a DI box) the sound system. Just need 3 resistors for a quick and simple summer. Look at https://www.prosoundweb.com/why-not-wye/ for more info on that.
/mike