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| * Recording Audio => Red '''circle''' flag | | * Recording Audio => Red '''circle''' flag |
| * Playing Audio => Green '''play''' flag | | * Playing Audio => Green '''play''' flag |
− | | + | The Audio Peak-meter is shown by default. The meter covers the range -50dBFS to 0dBFS, i.e. maximum permissible level at full scale (far right) down to 50dB below that at far left: |
− | By default, Audio Peak-meter is shown. The meter covers the range -50dBFS to 0dBFS, i.e. maximum permissible level at full scale (far right) down to 50dB below that at far left:
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| * The green segment covers the range -50dBFS to -10dBFS. | | * The green segment covers the range -50dBFS to -10dBFS. |
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| There are independent meters for left and right channels which monitor the system output, i.e. the mix of audio that feeds the Zynthian output. Level decays with a logarithmic rule, taking one second to decay to -200dBFS so will decay to -50dBFS (the displayed range) in about quarter of a second. Peaks are displayed instantly, i.e. the attack of the meter is immediate(*). The peak hold bar remains for two seconds or until a higher peak is reached. | | There are independent meters for left and right channels which monitor the system output, i.e. the mix of audio that feeds the Zynthian output. Level decays with a logarithmic rule, taking one second to decay to -200dBFS so will decay to -50dBFS (the displayed range) in about quarter of a second. Peaks are displayed instantly, i.e. the attack of the meter is immediate(*). The peak hold bar remains for two seconds or until a higher peak is reached. |
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− | (*) Meter is updated 5 times per second so there could be 200 ms delay in peak being displayed. | + | (*) Meter is updated 5 times per second so there can be 200 ms delay in peak being displayed. |
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| Alternately, CPU-load bar can be enabled from webconf, replacing the Audio Peak-meter. The CPU-load bar shows the CPU usage as calculated by the Jack Audio Server: | | Alternately, CPU-load bar can be enabled from webconf, replacing the Audio Peak-meter. The CPU-load bar shows the CPU usage as calculated by the Jack Audio Server: |
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| The blue M flag is shown when MIDI messages pass thru the MIDI router. Not all messages are detected. Only CC, Program Change and Note On/Off. | | The blue M flag is shown when MIDI messages pass thru the MIDI router. Not all messages are detected. Only CC, Program Change and Note On/Off. |
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− | The red "warning" flag is shown when there are Xruns. You should hear clicks and pops too ;-) | + | The red "warning" flag is shown when there are Xruns. You should hear clicks and pops too. |
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| When the red "ray" or "thermometer" flag is shown, your zynthian is working in a degraded state, with the CPU frequency capped to 600-800 MHz, trying to stabilize the system and avoid a system crash. You shouldn't see any of them and if you do so, you should consider looking for a better power source (under-voltage) or using a heat sink (over-temperature). | | When the red "ray" or "thermometer" flag is shown, your zynthian is working in a degraded state, with the CPU frequency capped to 600-800 MHz, trying to stabilize the system and avoid a system crash. You shouldn't see any of them and if you do so, you should consider looking for a better power source (under-voltage) or using a heat sink (over-temperature). |