1-bit audio output through RS232 with MCU

PIC16F887 receives 1 bit audio samples from PC via RS232(over USB) and plays it back. The sample rate is about 44100 Hz. Serial baudrate: 115200 The microcontroller’s software is written in assembly(mpasm). The samples are sent by a deadbeef(audio player) outputplugin I wrote. Sometimes the buffer in the microcontroller runs out of data and you hear a short interruption. The experimentation board is a DB038 from Voti: deadbeef: Songs: High Voltage - ACDC Master of puppets - Metallica Peace Sells - Megadeth Fly Zone - Junkie XL Panama - Van Halen Nyan Cat Yen On A Carousel - David Holmes Weapon Of Choice - Fatboy Slim What it is kid - ZZ Top Welcome to the Jungle - Guns N’ Roses