diff --git a/src/audio/RecorderWorklet.ts b/src/audio/RecorderWorklet.ts index 2d1bb0bcd2..73b053db93 100644 --- a/src/audio/RecorderWorklet.ts +++ b/src/audio/RecorderWorklet.ts @@ -45,7 +45,13 @@ class MxVoiceWorklet extends AudioWorkletProcessor { process(inputs, outputs, parameters) { const currentSecond = roundTimeToTargetFreq(currentTime); - if (currentSecond === this.nextAmplitudeSecond) { + // We special case the first ping because there's a fairly good chance that we'll miss the zeroth + // update. Firefox for instance takes 0.06 seconds (roughly) to call this function for the first + // time. Edge and Chrome occasionally lag behind too, but for the most part are on time. + // + // When this doesn't work properly we end up producing a waveform of nulls and no live preview + // of the recorded message. + if (currentSecond === this.nextAmplitudeSecond || this.nextAmplitudeSecond === 0) { // We're expecting exactly one mono input source, so just grab the very first frame of // samples for the analysis. const monoChan = inputs[0][0];