Yamaha PSR-S950 Owner's Manual page 98

USB Audio function
The message "This drive is busy now." appeared, and then the
recording was aborted.
Audio files cannot be selected.
Recorded file is played back at a different volume compared to
when it was recorded.
Mixing Console
The sound seems strange or different than expected when
changing a rhythm Voice (drum kit, etc.) of the Style or Song from
the Mixer.
Microphone/Vocal Harmony (PSR-S950)
The microphone input signal cannot be recorded.
Harmony can be heard in addition to the microphone sound.
The Vocal Harmony effect sounds distorted or out-of-tune.
Foot Pedal
The on/off setting of the footswitch connected to the FOOT
PEDAL jack is reversed.
[AUX IN] jack
Sound input to the [AUX IN] jack is interrupted.
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PSR-S950/S750 Owner's Manual
Make sure to use a compatible USB flash memory (page 92).
Make sure that the USB flash memory has enough memory
(page 68).
If you are using a USB flash memory to which data has already
been recorded, check first that no important data remains on the
device, then format it (page 93) and try recording again.
The file format may not be compatible with the instrument. The
compatible formats are: MP3 and WAVE (PSR-S950), WAVE (PSR-
S750). The DRM protected files cannot be played back.
The audio playback volume has been changed. Setting the volume
value to 100 plays back the file at the same volume as when it was
recorded (page 67).
When changing the rhythm/percussion Voices (drum kits, etc.) of
the Style and Song from the VOICE parameter, the detailed settings
related to the drum voice are reset, and in some cases you may be
unable to restore the original sound. In the case of Song playback,
you can restore the original sound by returning to the beginning of
the Song and playing back from that point. In the case of Style
play, you can restore the original sound by selecting the same Style
again.
The microphone input signal cannot be recorded by Song record-
ing. Use the USB Audio function (page 67).
Vocal Harmony is set to "ON." Turn Vocal Harmony off (page 83).
Your vocal microphone may be picking up extraneous sounds,
such as the Style sound from the instrument. In particular, bass
sounds can cause mistracking of the Vocal Harmony. To remedy
this:
• Sing as closely to the microphone as possible.
• Use a unidirectional microphone.
• Turn down the Master volume, Style volume, or Song volume
control (page 14, 53).
Turn the instrument's power off, then turn it on again without press-
ing the footswitch.
The output volume of the external device connected to this instru-
ment is too low. Increase the output volume of the external device.
The volume level reproduced via this instrument can be adjusted
by using the [MASTER VOLUME] dial.